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ATMP aminotrimethylene acid water treatment chemicals belong to the scale inhibitor, corrosion inhibitor, it is an aqueous solution of the phosphorus trichloride, formaldehyde, ammonium step reaction by a certain percentage obtained. Aminotrimethylene acid first by the liquid in a further crystallization, separation, drying to obtain a solid product. Solid aminotrimethylene acid soluble in water, melting point higher than 195 degrees, the decomposition temperature of 200-212 degrees, the liquid products are easy to dissolve in water. Aminotrimethylene acid is one organic acid commonly used varieties. Aminotrimethylene acid on calcium carbonate scale best. At low concentrations, it has good corrosion performance (40mg / g) time. ATMP - application and use methods ATMP is often associated with other organic acid, polycarboxylic acid or salt to form organic alkaline water treatment agent, for circulating cooling water systems under a variety of different water quality conditions. The amount to 1 ~ 20mg / L is preferred; when as corrosion inhibitor, the dosage of 20 ~ 60mg / L. ATMP is usually acid products. But when used in alkaline cleaning purposes, use sodium hydroxide and sodium are formulated after a five alternate. Due to the low of the disodium salt of the acid and trisodium salt solubility in water (at room temperature is about 30%, while the five salt is about 50%), in order to formulate a stable formulation with sodium hydroxide solution and present When the product is a liquid product (50% aqueous solution), the concentration of the former shall not be higher than 45%, otherwise, and in the process will appear disodium and tri-sodium salt of fine microcrystalline precipitate. When this product as a corrosion inhibitor alone, the required dose is higher. Guchang be with other corrosion inhibitors (for example, zinc ions) combined. Hotels and zinc, can significantly improve the corrosion resistance of carbon steel, the best formulation of zinc content of 30% -60%. Since its formation of zinc complexes, zinc solubilization stable, so the formula is not sensitive to changes in water quality, cooling water temperature is allowed to reach 70-77 degrees Celsius, PH value to 9. ATMP dosage and method of use of the area ATMP is mainly used for industrial water treatment, it is an efficient stabilizer, a good chelation. Low threshold inhibition effect, the lattice distortion and the like. Salt water into the dirt can prevent the formation of scale, especially inhibit the formation of calcium carbonate scale; ATMP in water dissociate into six ions with calcium, magnesium metal formation of multi-ring and a loose form of integration was dispersed in water, calcium scale normal crystalline magnesium scale damage. ATMP and polyphosphates, polycarboxylates, nitrites have a good synergy, can effectively prevent the formation of scale in the scale-forming salts. It also has corrosion inhibition, as the cathodic corrosion inhibitor. It is commonly used in industrial cooling water treatment scale inhibitor and corrosion inhibitor. Metal can also be used as a cleaning agent to remove grease metal surfaces, as well as in detergent additives, metal ion masking agent, non-cyanide plating additives, Liu and other precious metals extraction. ATMP low oxidation resistance fungicide (such as chlorine) ability to break down is not as strong HEDP, therefore, when used in circulating cooling water system, which is separated from the dosing point should the chlorine dosing point; chlorine impact rather than continuous style; zinc chloride decomposition of the product can also play a role in slowing; in addition, it is the dispersion of chlorine / bromine biocide per liter of water can also be suppressed to join amino acids than or equal to 1mg / mg bromine. ATMP for copper and its alloys have a corrosive effect. Therefore, when you use it to scale, must be used in combination with azole copper corrosion inhibitor, the product is used for boiler water chelating treatment with EDTA or NTA and other conventional chelating agents can be combined to produce a synergistic effect. ATMP is usually acid products. But when used in alkaline cleaning purposes, use sodium hydroxide and spare after a five-salt recipes. Due to the low of the disodium salt of the acid and trisodium salt solubility in water, in order to formulate a stable formulation with a concentration of sodium hydroxide solution and ATMP liquid when the former shall not be higher than 45%, or in the middle and the process It appears disodium and trisodium salt fine microcrystalline precipitate. ATMP use Preparation industry ATMP uses: formaldehyde, ammonium chloride, phosphorus trichloride reaction. Uses aspects: As used in the production of formaldehyde production, so after the liquid produced will contain and a small amount of formaldehyde, but the content is very small. Water treatment agent ATMP chelating ability to calcium ions in water is very strong. ATMP can not serve as stainless steel and corrosion inhibitors. Aminotrimethylene acid is mainly used for industrial cooling water, boiler water, oilfield water treatment scale inhibitor, corrosion inhibitor. Due to the development of science and technology, now aminotrimethylene acid is also used in the textile industry, as metal ion chelating agents, can also be used for metal surface treatment agent.
First, the cooling water and metal corrosion mechanism From the above it can see metal corrosion mechanism, causing metal corrosion is anodic metal dissolution reaction. Accordingly, corrosion damage corrosion of metals occurs only in the battery anode region and the cathode region is non-corrosive. When isolated metal corrosion on metal surfaces simultaneously with equal speed with the phenomenon of an anode reaction and a cathode reaction, the coupling electrode reaction is called. Each coupling reaction referred conjugate reaction, and the corresponding corrosion system is called a conjugated system. In the conjugated system, equal to the total anode cathodic reaction rate and overall response rate. At this time, the anode reaction releases electrons consumed exactly the cathode reaction, the metal surface is not accumulated charge, so the electrode potential does not change over time. It can be seen from the above discussion, corrosion control, as long as the control of both the anodic reaction and cathodic reaction in the etching process to any - of the electrode reaction rate, the speed of the other electrode reaction will be followed by control, from the surface to make the whole process of the corrosion rate under control. Second, the factors affecting the corrosion A. chemical factors 1pH value 1) When to lower the pH to enhance corrosion. When less than 4.3 (free mineral acidity region), the most effective factors affecting corrosion is pH value, an increase of the hydrogen ion concentration can exacerbate corrosion. 2) When the pH to 4.0, which is characterized with the same acid-soluble metal; bound to 4.3 to 10.0, the corrosion rate is affected to be smaller (oxygen depolarized is a major factor); pH increased to 12 before the corrosion rate declining, reaching 12 minimum corrosion rate. And then continues to increase, the corrosion rate began to increase. The effect of pH on the corrosion rate 2 dissolved salts Increasing solution conductivity makes the initial corrosion rate also increased; as Cl-, SO42- and other corrosive ions, can destroy the protective oxide film metal anode, thereby further accelerate corrosion; ion constitute hardness and alkalinity of corrosion there Inhibition; high electrolyte concentration in water, the solubility of oxygen decreases, so the high salt content when the corrosion rate decreases. 3 dissolved gases 1) DO Quantity of dissolved oxygen and water temperature, water pressure, the water area exposed to the atmosphere directly related. From depolarization, will promote corrosion. Or depressions cause pitting corrosion. When pitting, which produce the same consequences than in more harmful metal loss on the area. Strong pitting can produce deeper penetration of the metal, and the rapid destruction of these penetration points. Effect of oxygen content on the corrosion of different temperatures 2) carbon dioxide dissolved in water to form carbonic acid, increasing the acidity of the water, it is conducive to the escape of hydrogen. 3) ammonia is selectively etched copper: NH3 + H2O = NH4OH NH4OH + Cu2 + = Cu (NH3) 2+ + H2O 4) hydrogen sulfide cause pH decreased; iron sulfide (cathode), and iron to form iron galvanic corrosion and form. 4 suspension Mainly deposited on the heat exchanger surface is easy to cause corrosion under the scale. When the cooling water flow rate is too high, the particles tend to lower the hardness of the metal or alloy to produce corrosion and wear. Case 1 Cooling tower peripheral situation is very bad! Circulating cooling water system pool surface has a lot of foam, the walls around a large pool of slime and rust attached to the surface. The main reason is: 1, the system does not long for circulating water quality management, concentration factor seriously overweight, the absence of timely dosing water treatment chemicals, water, microbes, bacteria multiply. 2, since no chemical dosing system corrosion is more serious, a lot of corrosion products such as rust class deposit, suspended around the pool wall. B. physical factors 1 temperature temperature, corrosive chemical reaction speed is increased. And the diffusion rate is proportional to the temperature, and over-voltage, is inversely proportional to viscosity. Increase the amount of diffusion enables more oxygen to reach the metal surface, resulting in corrosion cell depolarization; overvoltage drop, because the oxygen evolution caused depolarization; viscosity decreases in favor of the anode and cathode depolarization, that is advantageous and atmospheric oxygen dissolution and accelerate hydrogen to escape. In the region adjacent to the metal, at different temperatures, it will aggravate pitting, heat portions of the anode, the site of the cold cathode. Among factors also influence each other. Temperature, oxygen content decreased, so that the corrosion rate decreases. Effect of temperature on the corrosion rate Spontaneous battery temperature difference 2 is proportional to the ratio of the relative area of ​​metal corrosion rate of the cathode and the anode area. Different metals: Nickel - when combined steel, nickel cathode. Using tube - tube plate connections, steel - Nickel exacerbate the corrosion; Ni - steel corrosion is much smaller increase. The same metal: passive film damage. 3 flow rates of increase in corrosion rate increases. In the high flow rate region, the thickness of the laminar flow area is reduced, the oxygen is easy to reach the metal surface, the oxygen depolarization resulted in accelerated corrosion. High-speed water will wash away the corrosion product may become a passivation layer, thus exacerbating corrosion. Flow rate on corrosion rate Portable air turbulence and pipeline corrosion within the condenser 4 different metals Metal dissolved in ionic form into the trend of water depends on the electrode potential between the metal and ions. Electrode potential of different metals with ion concentration, temperature, and corrosive environment changes. 5 metallurgical aspects Uniformity of metals: metal inclusions district heterogeneous metal compound inclusions district, grain structure on Metal surface conditions: total surface defects, such as scratches, cracks and so on; Case 2 Circulating water piping, particularly at pipe elbows, because there is no water treatment chemicals and dosing sludge remover, in the pipeline at a flow rate of slowing, it is likely to cause the deposition of slime dirt.
During the two sessions this year, the Minister of Environmental Protection Ministry represented Chen Jining grow "steel teeth claws" to make environmental laws. Wang Jinnan, vice president for Environmental Planning, said that since the implementation of new environmental laws, China's environmental public interest litigation, environmental protection and other work to promote tax reform quickly. China has gradually toward environmental law orbit, using legal means to deal with environmental issues increasingly become the norm. Meanwhile, the government towards a single governance Multi - governing, administrative governance to rely more on market changes, such as emissions trading, desulfurization and denitrification tariff and other specific work has been advancing. From the perspective of investment and financing, the government investment in water, air and soil, after all, is limited, but you can rely on market-based instruments leveraging the huge market capital to contribute to environmental management. The implementation of new environmental laws implemented, the effect is emerging in some places. In late October, the ministry released data show that the first eight months, the nationwide implementation of continuous daily penalties for a total of more than 400 pieces, fines amounted to more than 300 million yuan. 7 months ago, the nationwide implementation of the seizure, detention altogether 2065, the implementation of limited production, cut a total of 1347, a total of 927 since the transfer of administrative detention, transfer suspected environmental crime altogether 863. However, there are a number of local environmental protection department due to new environmental laws forced by the situation, but distress up their position. "A lot of people say that stronger enforcement tools more, in fact, we feel that the environmental protection department which caught more narrow," said a local EPA staff central provinces of frustration that many people think has a daily meter penalty, sequestration and other environmental law enforcement new tools, the environmental protection department angry harder, way more stronger, in fact, the environmental protection department which caught even smaller. Because the public expect significantly improved because of environmental law, the concept of local leaders did not change. Two aspects of pressure, so the environmental protection departments feel life more difficult, for fear to say should not say, do something so that the leaders unhappy, "Sometimes that should not reveal their 'teeth' really hard to say."
To deal with the relevant departments of farmers burning straw can be "burning straw in the morning, afternoon detention", and in some a "large number of environmental violations" of industrial enterprises, the relevant departments, but only "name" of it? For days of haze phenomenon, the ministry inspection teams found a lot in the three northeastern provinces of environmental violations, including Qiqihar City of Heilongjiang Black Group Ltd., Huadian Energy Co., Huludao City Guodian moist or Cogeneration Co., Ltd. and other enterprises owned company to be named because of excessive emissions Ministry of Environmental Protection. Ministry of Environmental Protection informed that individual companies are not strictly implement emergency measures requirements; the existence of excessive emissions, pollution control facilities, inadequate construction or other issues part of the normal operation of coal-fired enterprise; coal-fired heating boilers and environmental protection infrastructure construction business, operational issues outstanding; some of construction sites, materials yard dust prevention measures are not implemented. Ministry of Environmental Protection said, to address the problem, an inspection team has asked the local environmental protection department shall seriously investigate and supervise their rectification in place. Ministry of Environmental Protection named several companies, mostly coal-fired companies. We already know that, despite the burning of straw and the like on the haze, "also contributed to this," but it's far less extent direct fired more violent. According to industry experts say, coal concentration of PM2.5 contribution rate of around 61%. But why deal with the relevant departments of farmers burning straw can be "burning straw in the morning, afternoon detention", and in some a "large number of environmental violations" of industrial enterprises, the relevant departments, but only "name" of it? Environmental laws over the investigation, did not "roll call" word. "Named" here, might only enterprises with public pressure for illegal means. Although in the report, Ministry of Environmental Protection inspection team has asked local environmental protection departments to be severely punished and supervise their rectification in place, but such a statement is actually full of links to an unknown or vague. In accordance with the provisions of the new environmental law, enterprises, institutions and other production operators over pollutant discharge standards or exceed the total amount of pollutant emission control targets focus the emission of pollutants, the people's governments above the county level environmental protection departments can be ordered to be taken to limit the production, Discontinued remediation measures; serious cases, reported to have the right of approval of People's Government shall be ordered to suspend business or close down. "Limit production, cut-off regulation" is minimal treatment, but even so, we can not seem to get confirmation from the reports. Can not say that because the haze is already common in North overwhelmed by the heavy haze phenomenon is not together major environmental emergencies. Environmental governance can not be achieved at once, of course, but the face of the determined "substantial environmental violations," apparently did not give the relevant departments to match, investigate action within the legal framework. This includes not only the missing had been questioned in some places emergency plans, including the disposal of environmental violations and accountable. From 2015 we began to implement the new environmental law, known as the "history of the most serious." For example, it clearly states that "local people's governments at all levels shall Environmental Quality is responsible for the administrative area", and at 68 made, the "do not meet the conditions of administrative license granted administrative licenses" "to cover up environmental violations "" ordered to suspend business should be made according to the law, but not to make the decision to close "and other eight kinds of illegal activities, resulting in serious consequences, local people's governments above the county level people's government environmental protection departments and other environmental supervision and management bear The main responsibilities of departments responsible should resign. However, in specific implementations, we have the local government is responsible for the environmental quality of the region's situation, it seems that there is little feeling. Sky floated five words, not "do not call that thing", nor "Oriental Dumpling King" network picture, but "what environmental laws." How can real Sword environmental regulations, environmental regulations Sword why not always? In any event, continued and severe fog and haze, should not rely on the northwest wind blew away, nor should rely on a network of another piece to digestion.
Central air conditioning circulating water system, since it is based on water as the working medium, in the external conditions change, water quality on the performance of an unstable state, often problems are: the occurrence of fouling, corrosion, biological slime, algae growth, bacteria, etc., if not properly water treatment, and will lead to pipe blockage, corrosion, leaks, reduce heat transfer efficiency and other issues, affecting the normal operation of the entire circulating water system. Often used biocide, biocide how? You can solve the problem? The effect is good? After sterilization after use, it can be in contact with bacteria and algae, bacteria and algae protein quick disconnect bond irreversibly inhibit their growth, metabolism. Resulting in the death of microbial algae, so the common bacteria, fungi, algae has a strong inhibitory and killing effect. High biocidal efficiency, good degradation, with no residue, safe operation, good compatibility, high stability, and low cost. And to kill the algae, while adhering to the pipe wall has excellent good biological slime stripping effect. Biocide use more as a non-oxidizing biocide, sticky mud stripping agent, can also be used acrylic fiber dyeing process are smooth and antistatic agent and textile processing ago. Central air conditioning system in the settlement, it can quickly kill bacteria, algae, effective peeling sticky mud.
Using aluminum, iron and other inorganic coagulants, flocculants within sewage treatment systems, such as the amount of water need to be addressed over the clarifier processing capacity or due to other factors that cause water floes drift out late settlement, only need to add 0.1-2ppm of PAM coagulation, sedimentation can be significantly improved. Moreover, the treated water COD and color indicators will be significantly improved. I. Product Overview Usage A sewage treatment agent additive by definition is required when used in sewage treatment, such as polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, nonionic, zwitterionic polyacrylamide, PAC, etc. in different applications It can be used as sewage treatment agent. Sewage Treatment Using aluminum, iron and other inorganic coagulants, flocculants within sewage treatment systems, such as the amount of water need to be addressed over the clarifier processing capacity or due to other factors that cause water floes drift out late settlement, only need to add 0.1-2ppm of PAM coagulation, sedimentation can be significantly improved. Moreover, the treated water COD and color indicators will be significantly improved. Note: All of inorganic coagulant flocculant to be with this product may have a better suitability. Sludge Thickening Use 0.3- 2ppm can reduce the biochemical pool concentrated pool of sludge and sludge water ratio and improve the utilization of biochemical pool and sludge thickening pool. You can sludge concentration increased from 3 --- 10 g / L to 30--100 g / L, the next step greatly reduces the weight of sludge dewatering sludge process, sludge dewatering equipment and improve staff efficiency . Sludge dewatering Type and dosage and cake after the dehydration and treated as different kinds of sludge are different, so the need for a variety of different types of products to test selection. Two, polyacrylamide Category polyacrylamide polyacrylamide Description: polyacrylamide (PAM) is water-soluble polymers, insoluble in most organic solvents, has good flocculation, can reduce frictional resistance between the liquids, by ion characteristic points divided into non-ionic, anionic, cationic and amphoteric four types. Using the methods and precautions CPAM Caution: 1, the size of the floc: the floc is too small to affect drainage rate, floc floc constraints make much more water and reduce the mud biscuits. After selecting the molecular weight polyacrylamide floc size can be adjusted. 2, sludge characteristics. The first point to understand the source of sludge characteristics and composition, proportion. Depending on the nature of the different sludge can be divided into two kinds of organic and inorganic sludge. CPAM for disposal of biosolids, the relative anionic polyacrylamide flocculant for mineral sludge, strong alkaline when cationic polyacrylamide, anionic polyacrylamide and should not be used when very acidic, solid content high amount of sludge is usually polyacrylamide is also large. 3, floc strength: floc under shear should insist on steady without breaking. Advances in molecular weight polyacrylamide or select the appropriate molecular structure to help improve floc stability. 4, the ion of polyacrylamide: for dewatered sludge, the available degrees of ionic flocculant different small test do first stop after the selection, select the best suitable polyacrylamide, so that to obtain the best effect of flocculant, but also make a minimum dosage, saving costs. 5, polyacrylamide dissolved: dissolve hair abundant ability to play good flocculation. Sometimes it needs to speed up the dissolution rate, when the concentration of progress can be thought of polyacrylamide solutions. Product features 1, flocculation: PAM allows suspended material by charge neutralization, bridging adsorption, since flocculation. 2, adhesion: through mechanical, physical, chemical effect, since adhesion. 3, lowering resistance: PAM can effectively reduce fluid friction, the water can be added to trace PAM 50-80% reduction in resistance. 4, thickening: PAM have a thickening effect under neutral and acid conditions, when the PH value above 10 PAM easy hydrolysis. When semi-mesh structure, thickening more obvious. The amount of polyacrylamide 1, the number of washing with the use of cationic polyacrylamide can be set between thirty kilograms to one hundred and ten kilograms; the amount of the chemical industry waste water is generally between fifty to one hundred and twenty kilograms; dyeing industry wastewater and paper industry wastewater difficult to deal with, should increase the number of use, use the number provided in the one hundred to three hundred kilograms more reasonable, electroplating wastewater industry and general industrial water are generally not more than fifty kilograms. Note the number of the number :( these types of industries are using thousands of tons of wastewater each). 2, sewage treatment methods depending on the mud off with a flocculant is not the same. If the process the body uses biochemical methods, that is, the remaining sludge dewatering (which may contain part of the primary sedimentation mud), just as the sludge dehydrating agent of cationic PAM can. If the process the body uses physicochemical methods, such as an enhancement, loading magnetic separation process, the general is to add PAC quenched, and then add an anionic flocculant, and finally add the cationic flocculant dehydration. Specific dosage should be based on wastewater quality. There are also many sewage treatment station, sludge dewatering directly added to PAC or other inorganic flocculants, the in frame filter, especially electronics factory or a small sewage treatment plant used widely. PAM at the time as the sludge dehydrating agent used generally in the ratio of 0.1% and water - 0.2%. Dissolved into a glue-like liquid later, and then added to the sludge mixing investment process. And sludge ratio is generally 5% --10%, some less, this should be determined based on the concentration of the sludge, it is best to determine the optimal dosage and usage models through field experiments beaker. Different sludge, different agents, the treatment effect of different equipment, different management levels, the sludge is different. 3, sewage treatment plant with a cationic polyacrylamide as sewage sludge dewatering operations agent. In the process and customer communication, the client often asked in the process of sewage treatment sludge dewatering, sludge dewatering agent dosage problems. To know the exact opposite sludge dewatering agent dosage problems, first understand these parameters, the moisture content of the sludge, mud cake moisture content, into the mud, into the dosage, dispensing concentration Sludge moisture content: the percentage of moisture contained in the sludge weight and sludge ratio is referred to the total weight of the moisture content of the sludge. Cake moisture content: That is a percentage off the sludge cake moisture contained in the weight of the total weight of the sludge cake moisture content is called. But also through the following calculation formula: 1, dosage mg / L = Dosing quality / process water / Pharmaceuticals concentration 2, treated water dosage dose = treated water m3 / h * dosage g / m3 3, the amount of dry sludge treated water * = [(1 - sludge moisture content) / (1 cake moisture content)] 4, pharmaceutical consumption per ton of dry mud g / m3 = dosage / dry mud The calculated results of the above error may be relatively large, for reference only make sewage running. The actual consumption of the dose to be actually test machine operators. Third, the PAC PAC (polyaluminum abbreviation) Alias ​​basic aluminum chloride; polychlorinated aluminum; hydroxy aluminum chloride; PAC et al., Appearance: white, golden yellow, brown, red-brown granular / flake; CAS NO: 1327-41-9, also a waste water treatment agent. PAC Performance: For the purified water is better than aluminum sulfate flocculant, water purification costs low compared to 15-30%. Floc formation rapid settlement rate, greater than the traditional products such as aluminum sulfate processing capabilities. Consumption of water alkalinity less than a variety of inorganic flocculants, and thus less time to cast vote alkaline agent. Adaptation of source water PH5.0-9.0 range can be aggregated. Corrosion resistance, good operating conditions. It is better than the solubility of aluminum sulfate. Handle less water salinity increases, it is conducive to treatment and high-purity water, the ion exchange system. Source water temperature adaptability than aluminum sulfate and other inorganic flocculants. PAC uses: urban drainage purification: river water, reservoir water, groundwater. Industrial water purification, urban sewage treatment, industrial waste water and waste recycling useful materials to promote the recovery of coal washing coal wastewater sedimentation, starch manufacturing starch. , Industrial wastewater treatment: wastewater, leather wastewater, wastewater containing fluoride, heavy metal waste, wastewater, wastewater, coal washing wastewater, mine drainage, brewing wastewater, metallurgy wastewater, meat processing waste water, sewage treatment, paper sizing, sugar refining, foundry, wrinkle-free cloth, catalyst supports, medicine refined, quick-setting cement, raw materials for cosmetics. Fourth, the nature and effect The nature of aluminum sulfate Properties: easily soluble in water, aluminum sulfate can not be dissolved (just coexist), and sulfuric acid in sulfuric acid solution together in pure sulfuric acid dissolved in water, so that the solubility of aluminum sulfate, aluminum sulfate in water solubility in sulfuric acid. Normal precipitation contains 18 molecules of water of crystallization, aluminum sulfate 18 water, 18 water production, mostly aluminum sulfate industry. Anhydrous aluminum sulfate containing 51.3 percent, even 100 ℃ not autolysis (self crystals were dissolved in water). Lose crystal water easily weathered, more stable, heating water loss, high temperature will decompose alumina, and sulfur oxides. Heated to 770 ℃ begins to decompose alumina, sulfur trioxide, sulfur dioxide and water vapor. Dissolved in water, acid and alkali, insoluble in ethanol. Acidic aqueous solution. Aluminum hydroxide generated after hydrolysis. Boiling water for a long time to generate basic aluminum sulfate. Industrial off-white flakes, granules or block, because it contains low iron salts and with pale green, because of low-cost iron salt is oxidized leaving the surface yellow. Crude off-white fine crystalline structure of the porous substance. Non-toxic, dust can irritate the eyes. The role of aluminum sulfate Raw material in the paper industry as a gum rosin, wax emulsion compound precipitation agent, as flocculants in water treatment, but also for foam fire extinguisher inside retention agents, manufacturing alum, aluminum white, oil bleaching, deodorization agent, certain drugs and other raw materials. But also the manufacture of artificial stones and advanced ammonium alum. Arsenic content is not more than 5mg / kg of the product can be used in water treatment flocculant. 1. used as paper sizing agents and paper industry, to enhance the paper's resistance to water, seepage performance; 2. dissolved in water to make water and natural rubber fine particles agglomerate into large floc, so from the water remove, it is used as coagulant for water and wastewater; 3. turbidity water is used as a cleaning agent, also used as a precipitating agent, fixing agent, fillers and the like. Used in cosmetics antiperspirant cosmetic ingredients (astringents); 4. fire industry, and baking soda, the blowing agent composition foam fire extinguishing agent; 5. analysis reagent, mordant, tanning agents, oil bleaching agent, wood preservative agent; 6 pasteurized albumin stabilizer (including liquid or frozen whole egg, egg yolk protein or);. 7 can be used as raw materials for the manufacture of artificial stones and advanced ammonium alum, other aluminate; 8 fuel industry , and in the production of chrome yellow and lakes dye as a precipitating agent, while underway fixing and fillers role. Role: 1 the paper industry as a paper sizing agent to enhance the paper's resistance to water, seepage performance; 2 dissolved in water to make water and natural rubber fine particles agglomerate into large floc, thereby. Since the water is removed, it is used as a coagulant for water and wastewater; 3. turbidity water is used as a cleaning agent, also used as a precipitating agent, fixing agent, fillers and the like. Used in cosmetics antiperspirant cosmetic ingredients (astringents); 4. fire industry, and baking soda, the blowing agent composition foam fire extinguishing agent; 5. analysis reagent, mordant, tanning agents, oil bleaching agent, wood preservative agent; 6 pasteurized albumin stabilizer (including liquid or frozen whole egg, egg yolk protein or);. 7 can be used as raw materials for the manufacture of artificial stones and advanced ammonium alum, other aluminate; 8 fuel industry , and in the production of chrome yellow and lakes dye as a precipitating agent, while underway fixing and fillers role. HANDLING AND STORAGE Handling Precautions: closed operation, local exhaust. The operator must go through specialized training, strict adherence to rules. Proposed operators wear self-absorption filter respirators, wearing chemical protective safety glasses, wear protective overalls on infiltration, wear rubber gloves. Avoid generating dust. Avoid contact with oxidizing agents. Handle with care unloading, packaging to prevent breakage. Equipped with spill response equipment. Empty containers may be harmful residues. Storage: Store in a cool, ventilated warehouse. Away from fire, heat source. It should be stored separately and oxidant, avoid mixing reservoir. Storage areas should be equipped with suitable material spill.
Due to the special nature of the petrochemical production process, the petrochemical industry large amount of cooling water, the cooling medium complex and diverse, and most of the more serious heat exchanger containing corrosive substances inside the cooling medium, they form a harsh corrosive environments, especially media materials leakage is to increase the difficulty of circulating water quality stability treatment, and even endanger the efficient and stable operation of the entire heat transfer equipment. I am in the petrochemical industry concluded many years of successful experience in the water treatment, water quality stabilizer selected recipe for the petrochemical industry, water quality conditions and with automatic dosing device implements online monitoring and chemical agent concentration on demand intelligent automatic vote plus, effectively ensuring the treatment effect. Especially in recent years, with the improvement of the petrochemical industry, water conservation and environmental protection requirements, to achieve high concentration ratio run, pollution-free formulations, such as pharmaceutical and petrochemical companies have become the objective needs treatment. DT-207 non-phosphorus corrosion inhibitor is my company developed a phosphorus-based compound type water treatment chemicals, has excellent scale inhibition, dispersion and corrosion inhibition performance, compatibility, and can be biodegradable, environmentally friendly pollution-free, avoid the deposition of calcium phosphate scale, especially for high hardness, high alkalinity, and scale properties of high salinity water quality is better than traditional organic phosphorus series, creating technical conditions for further improvement of industrial circulating water concentration ratio, and can be reduced appropriately The amount of fungicide, to achieve the advanced technology of water treatment agent and environmental protection requirements. We use advanced non-phosphorus corrosion inhibitor formulation technology, and with the use of highly effective biocide and sludge remover, has been successfully used in petrochemical and other large corporate clients in the circulating water system, and the use of automatic drug dosing device implements demand and on-line monitoring, effective control of the circulating water system corrosion and fouling, inhibit the formation of bacteria and algae breeding and biological slime, to enhance the efficiency of heat transfer equipment, ensure the circulating water system stable and efficient operation , while improving the system cycles of concentration, saving water resources, reduce water pollutants; It is worth mentioning, on-demand and on-line monitoring of dosing to achieve a real-time online data acquisition, solve the artificial laboratory analysis data lag, while significantly reducing the number of staff analysis, reducing labor costs, has been highly appreciated by customers. If you have further questions, you can call and ask questions: 0632-3536598
Uncover cement tile, a black pool of oil floating in the eyes, inside the dining kitchen vague sewage, flushing water from rural homes to the sewage collection; and opened adjacent to another piece of cement board brick, after sewage treatment into a pool of clean water. Why rural sewage change "cloud" to "clear"? Professor College of Environmental Science and Engineering, Beijing University of nationality East Task Force developed multi-media technology is the biological and ecological mystery of the miraculous change occurred. Aoyama also to springs China has more than 40,000 towns, 600,000 administrative villages, 2.5 million villages, most of which areas without sewage treatment facilities. As of 2014, there were still 280 million residents to use unsafe drinking water village, one of the core issues is the lack of drinking water sources in rural coastal pollution prevention and control technology system. However, the existing biological sewage treatment technology microbial ecology, environmental conditions and technical equipment triple constraints, difficult to meet low-cost, high efficiency, low footprint, low maintenance, ecology and other rural sewage treatment technology needs. National demand for rural drinking water source pollution prevention and control, the East group of nationality developed a completely independent intellectual property rights of biological and ecological multi-media technology, depth of water sources in coastal rural sewage treatment biological and ecological multi-media technology into applications. Multi-media technology for village life biological and ecological wastewater treatment technology needs, self-prepared two-galvanic effect multi-media filter, developed a highly efficient microbial enrichment cultivated agents, to achieve the optimal synergy nitrification and denitrification, forming a village Sewage multi-media biofilter - tidal flow constructed wetland treatment technology depth mode. Multi-media biofilter aerobic unit dosage of nationality by the Task Force developed east cultivated efficient microbial enrichment agent, biodegradable organics, ammonia and other oils and has a very high degradation of organic acids and sulfide odor, etc. as well as fatty acids, surfactants, aromatic compounds, phenolic compounds and other degradation effect is good. "Through multi-media biofilter - tidal flow constructed wetland treatment, water quality can be achieved," urban sewage treatment plant emission standards "A standard, can be used for other purposes other than drinking outside resources and does not produce pollution. "Dong said of nationality. The technology-fed civilization Rural multi-media biological sewage ecological treatment technology's core technologies include: multi-media filter, efficient microbial enrichment cultivated agents, micro-power multi-media biofilter and tidal flow constructed wetlands and other products and devices to multi-media biofilter and tidal flow constructed wetlands as the main body, the adsorption medium, microbial oxidation, fixed and biological extraction combine. Reporters learned that, in a variety of rural sewage treatment techniques, biological and ecological multi-media technology has significant and unique advantages. First, low-cost, micro-power operation, the direct operating costs of 0.08 to 0.28 yuan per cubic meter per day; second, less maintenance, multi-media biofilter almost no sludge, using automatic control mode, 12 to 24 1 month only artificial maintenance; and third, ecological, tidal flow constructed wetland ecological landscape and villages high degree of integration, facilities can be designed landscape; fourth, small footprint, covers only a single artificial wetland technology 1 / 5, the average total area of ​​1.0 to 1.5 square meters; fifth, high efficiency, chemical oxygen demand and ammonia nitrogen content and other water quality indicators of stability to achieve "urban sewage treatment plant emission standards" A standard. Around 2000, membership in the country's east doctoral study period has been concern in the field of waste water treatment and related research work. Since 2006, the East started research group of nationality rural sewage treatment technology. Over the years, membership in the country east of the industries most intuitive feeling is that the growth of the industry and the industry's capital and technology to constantly metabolism. 2010, rural sewage treatment technology market, "cohabitation", mixed technique, a variety of large and small companies which you want to share. And now, increasingly regulated industry, technology and systems have significant advantages is standing in the industry are the key factors. Therefore, especially east of nationality emphasized constantly updated technology: "efficient microbial enrichment cultivated agents and multi-media filter is our core technology, would be updated at least once every two years to maintain its unique and in the market Competitive Advantage." It is understood that the technology is Peking University with innovative technologies with independent intellectual property rights, mandated eight national invention patents, utility model patents 4, and to achieve a regional large-scale application. To transform and promote research Since 2008, group membership States to cooperate with the East, Zhangjiagang City, Jiangsu Province, to carry out a number of rural sewage treatment biological and ecological multi-media technology projects, built more than 50 facilities, services 30 million rural residents, was listed as Beijing University of Science and Technology Model one of the highlights. With Zhangjiagang series of projects, the East won the first session of nationality Peking University Cooperative Award for outstanding project award. 2013, membership in the country east of teamwork and Jiangsu an environmentally friendly technology company, presided over the design of the new multi-media biofilter applied directly to Haining City in Zhejiang Province in rural sewage treatment project, and the ramp in the city since the formation of the city's first Nishimura Lixin a biofilter using multi-media technology, "the latter ecology" pool of sewage treatment facilities. In addition, Zhejiang, Shanghai and Beijing Shunyi and other places east of nationality teamwork with government and business, promotion of a ~ 1000 different scale sewage treatment facilities in rural areas, more than 1,500 sets, economic, social and environmental efficiency significantly. East of nationality team also by conducting business advisory services, personnel management and technical training, integration of equipment research and development and other means, innovations into channels, to create greater economic and social benefits. "To solve environmental problems is one of the key." In the opinion of nationality east, biological and ecological value of multi-media processing technology far beyond the industrial field, it is for water ecological civilization, civilization village building more far-reaching. Since 2007, the technology has been "Eleventh Five-Year" scientific and technological support projects, the National SME Innovation Fund to finance basic research projects of public welfare Ministry of Water Resources and the National Spark Program key projects, it is listed as the Environmental Protection Department and Jiangsu Provincial Agricultural Commission demonstration project. 2012 State Environmental Protection Science and Technology Awards Second Prize, 2013 is eligible for the 41st Geneva International Exhibition of Inventions Gold Medal, Jiangsu Province was identified as "the international advanced level." As scientific and technological achievements into the impressive work of young scientists, of nationality East that basic research and industrialization of scientific research is at both ends of a balance, is especially true for engineering disciplines. "My field of study, or to say that most of the engineering studies, practical applications have to be verified." "In multi-media biological and ecological technology, for example, it is used in industrial fields and problems arising from the phenomenon back to us, we can be more targeted to solve the problem on the basis of the study." Dong said of nationality, "So My achievements in industry research and development between the two promote each other, as both ends of the scale, they are in development and has maintained a relatively balanced state. "
Various types of bacteria circulating water, causes algae; circulating cooling water bacteria mainly heterotrophic bacteria, autotrophic bacteria, fungi, yeast and so on. That organic-carbon bacteria are called heterotrophic bacteria, autotrophic bacteria is carbon dioxide, carbonate as a carbon source bacteria. Molds, yeasts are not photosynthetic eukaryotes. The main harm is done fungi produce slime deposition in coverage in the heat exchanger tubes and related fluid wall, reducing the cooling water cooling effect, increasing operating costs. Fungi on the metal and not directly corrosive, but it produces a sticky deposits will create differences in the metal surface corrosion caused by battery corrosion of metals, and sticky deposits covering metal surfaces and accelerate corrosion of metals and formation of rust point dirt. Circulating water various types of bacteria, harmful algae; algae circulating water hazards that will become dead algae in the cooling water system suspended solids and sediments. In the heat exchanger, to provide food for bacteria and mold. After the formation of clumps of algae into the heat exchanger, the heat exchanger can clog the pipeline, reducing the cooling water flow, thus reducing the cooling effect of the cooling water. Generated sediments covered metal surface corrosion due to the formation of differentiated cells and often occur corrosion under the scale. Adhesive removal Algicide walls of tubes for protection of microbial slime peeling clear, improving heat transfer efficiency of heat transfer equipment.
Circulating water corrosion performance Circulating Water Corrosion Inhibitor is a good copolymer, an organic acid, poly-carboxylic acid and copper corrosion inhibitor compound from the water treatment formula. Circulating water corrosion inhibitor good stability, it can be used in high hardness, high alkalinity, high PH value and temperature conditions, calcium carbonate and sludge etc. with excellent cleaning, dispersion. Circulating water corrosion characteristics Circulating water corrosion inhibitors, nitrogen, sulfur cyclic organic fungicides, as well as quaternary ammonium salts, organic biocides combined surfactant compound formed. Better than other single fungicide. Gram-positive and Gram-negative bacteria, fungi, sulfate reducing bacteria, iron bacteria, heterotrophic bacteria killing effect of good, cyanobacteria, green algae and diatoms bactericidal effect is also good, the product low toxicity, readily biodegradable , safe does not pollute the environment. Circulating water corrosion process, the largest scale and corrosion inhibitor should be used, because the circulating water in operation will generate scale and dirt, but also directly or indirectly metal equipment, pipeline corrosion, scale a lot of precipitation, heat exchanger will reduce the effect of clogging pipes and equipment, corrosion may shorten the life of equipment, increasing maintenance costs, and even cause accidents, affecting production Circulating water corrosion Features 1, the drug concentration is low, add a small amount of drugs. 2, low toxicity, no particular smell. 3, non-flammable, non-explosive, low resistance. 4, a weak acid solution. Circulating water corrosion inhibitors application introduction Circulating water corrosion inhibitors for industrial water, domestic water, chemical waste water in cooling towers, chillers and other equipment necessary for processing by the use of these chemicals, that the water reaches a certain quality requirements. It ensures cooling towers, chillers and other equipment in the best run state, effectively control microbial flora and inhibit scale production, pipeline corrosion prevention devices. To reduce energy consumption and extend the life of equipment purposes.


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