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Water treatment agent is industrial water, water, waste water disposal in the process of the necessary chemicals, after using these chemicals, can make the water reach the necessary quality requirements. It is the first effect of moderate scale and the composition of the sludge, reduce foam, cutting materials contact with the water erosion, remove the suspended solid in the water, and toxic substances, deodorant decoloring, softened water, etc. Sharply because the current world nations water to add, also all kinds of environmental statutes heels (water purification method) to formulate, severe day by day and so on all kinds of efficient water disposal reagents to improve soon. In our country, and the capital of the increasingly serious water crisis contradiction of water disposal reagents is produced to a very low, quality also is not all, so accelerate the development of the environmental protection material property of water disposal reagents to carry out the fire. Water treatment agent covers a flocculating agent, corrosion inhibitor, scale inhibitor, bactericide, dispersant, detergent, pretreatmentfilming, defoamer, decoloring agent, chelating agent, deoxidizer and ion exchange resin, etc. China's water treatment agents are introduced in the 70 s after the large chemical fertilizer unit attention and developed gradually; Since then, its own research and development of a series of water treatment agent. The variety of water treatment agent in our country mainly include the scale inhibitor, corrosion inhibitor, algae fungicidal, inorganic flocculants, organic flocculants such as several major categories. Water treatment reagents can be roughly divided into three categories: A, sewage treatment agent Second, the industrial circulating water treatment agent Three, the oil-water separating agent Commonly used water treatment agents are: the scale inhibitor, corrosion inhibitor, algae fungicidal (water treatment disinfectant), cleaning agents, sticky mud stripping agent, flocculant, coagulant, dispersing agent, such as water treatment agent, sodium hexametaphosphate is also a kind of water treatment. Four green water treatment agents PASP poly (aspartic acid Water treatment reagent, water quality testing, water quality testing instruments New type water treatment agent features: 1, reaction speed, ordinary industrial wastewater treatment only half an hour to a few hours. 2, has a wide range of organic pollutants, difficult in addition to the degradation of organic material has good degradation effect, etc. 3, the craft is simple, low cost, long service life, convenient operation and maintenance, the treatment effect is ideal, less consumption of micro electrolysis reaction agent when processing. 4 after micro electrolysis treatment, waste water will form the original ecological or ferrous iron in water, is better than the ordinary coagulant coagulation effect, no need to add iron salts coagulant, such as high removal rate of COD, and will not cause secondary pollution to the water. 5, have good coagulation effect, can effectively remove chromaticity and COD, and can greatly increase the wastewater biological sex. 6, the method can achieve the effect of phosphorus removal by chemical precipitation, can also through the reduction in addition to heavy metal. Water treatment agent 7, analysis our country facing the development opportunity, expounds the present situation of the application of environmentally friendly water treatment agent, water treatment agent think in theoretical innovation on the solid foundation of coagulation, we will send the green water treatment agents, multivariate composite water treatment reagents and nanometer materials, microbial flocculants such as new type of high efficient water treatment agent in the direction of the high speed development. features Natural mineral water treatment agent, is a composite aluminum silicate non-metallic mineral as the main raw materials, through special technology processing and new products, and chemical synthesis of water treatment agent are essentially different. The state has two kinds of slurry and powder. Nature of partial acid, PH 3 ~ 4. Paste proportion of 1.5 ~ 1.5, the powder weight 1.2 ~ 1.3. Color grey to dark grey. Natural mineral water treatment agent has five sex: adsorption, ion exchange, catalytic cracking, chemical conversion, physiological sterility. Application: (1) the most important advantage is that can control all kinds of difficult, especially toxic wastewater; (2) to clear a little floating compound; (3) fast flocculation precipitation and sediment, low moisture content, high compactness, good water, easy to filter processing; (4) the sewage treatment facilities and the process is simple, convenient operation, greatly reduce the project construction of a one-time investment, operation cost is not high at the same time; (5) sewage sludge, used as agricultural fertilizer additive has a synergistic effect, because the mineral materials are heavy fertilizer additives. So as to eliminate the secondary pollution. In water treatment industry, not only is widely used all kinds of water treatment equipment, water treatment agent also make great contribution to various industries. Water treatment reagents including corrosion scale inhibitor, flocculating agent, reducing agent, fungicide, catalyst, cleaning agents, etc., each agent has its own function and characteristics. The corrosion scale inhibitor The corrosion scale inhibitor just as its name implies is to relieve the boiler water circulation equipment such as scale and corrosion of a water treatment agent. The agent composed of alkaline material and organic compound with, joined the corrosion inhibitors, to prevent the heating surface corrosion. Potion of alkaline material, through chemical reaction inside the boiler, react with the water of calcium and magnesium salts material generated water slag, through boiler blowdown function after precipitation, calcium and magnesium ion concentration, reduce the water is not generated in the boiler scale. Detergent sex Cleaner is a kind of can dissolve penetrants volatile solvent, used to remove excess penetrant checked the workpiece surface. Some detergent specially designed specifically for removal of metal hydroxide, calcium carbonate and other similar adhesion in polyamide, polysulfone and components of film on the surface of the scale. In detergent before use to check the cleaning tank, piping and security filter and install the new filter. fungicide Fungicide, look at the name will see it. Fungicide is primarily to eliminate harmful bacteria such as bacteria, microbial a potion. Internationally, usually as a prevention and control of all kinds of pathogenic microorganism reagent. Disinfectant does not produce such as bromine, iodine, peroxide or peracetic acid and other drugs cause hidden trouble to the system. Common technology 1, sterilization, disinfection, water disinfection methods can be divided into two kinds of chemical and physical. Physical disinfection methods such as heating method and uv method, ultrasonic method; Chemical methods by chlorine, ozone, heavy metal ions and other antioxidants, etc. 2, magnetization: effect of the magnetic fields for water treatment effect, called the magnetization of water treatment. 3, precision filtration, made of special material microporous filter, filter membrane, using its uniform aperture, to intercept the water particles, bacteria, etc., make it can't be removed by filter, filter membrane intercept. Precision filter to micron grade (microns) or nanoscale particles and bacteria (nm). In the depth of the water processing is widely applied. 4, the ultrafiltration technology: ultrafiltration is a membrane separation technology. Is under a certain pressure (pressure of 0.07 to 0.07 Mpa, the highest no more than 1.05 Mpa), water flow on the surface of the membrane, and dissolve the salt in water and other electrolytes are tiny particles, can permeate ultrafiltration membranes, and the molecular weight of the big particles and colloidal substances will block by ultrafiltration membrane, so that part of the water particle separation technology. Of ultrafiltration membrane pore size is made up of a certain molecular weight material to intercept test, and the molecular weight value. 5, ozone: is a normal temperature is blue, there are special fishy smell gas, formula for O3. Ozone allotrope of oxygen, it can break down at room temperature for a single atom of oxygen, while a single atom of oxygen with strong oxidizing. Ozone is a bacteria, fungi and bacteria, modified protein oxidation, lose the electrolyte, can kill bacteria breeding and germ cell, viruses, fungi, etc., and can damage botulinum toxins, bacteria can eliminate and kill in the air, water, food toxins and bacteria that can be in addition to the peculiar smell, is widely used in food production process of disinfection and sterilization. Ozone in the process of disinfection and sterilization only non-toxic oxide, excess ozone reduction for oxygen, finally, there is no residue on the sterilized items, can be directly used for the disinfection of food. 6, ion exchange, ion exchange, is the ions in the water and ions on ion exchange resin, such as charge by reaction. Ion exchange reaction process can use H + Na + HR type cation exchange resin and water exchange reaction process, for example: HR + Na + = Na++ H + known from the type: in ion exchange reaction, the cations (Na) in the water were transferred to resin, the ion exchange resin in a commutative H into the water. Na from water is transferred to the process of resin on is ion exchange process. And the H on the resin exchange to process according to the process of free water. Therefore, as a result of free and displacement process, make the Na and H swap position, this change is called ion exchange. 7, ultraviolet (uv) : when mercury lamp lit, can emit wavelength of 1400 nm to 4900 nm uv (1 nm = 10-10 m), the light can penetrate bacterial cell walls, kill microbes, achieve disinfection sterilization. At about 2600 nm uv wavelength effect is best. Ultraviolet disinfection is mainly used in processing small drinking water. Its characteristic is: killing capability is strong, short contact time; Simple equipment, convenient operation and management, the treated water colorless, odorless, no harm of poisoning; Doesn't increase as chlorine antivirus of chloride ions. 8, adsorption purification technology: refers to a adsorption capacity material such as activated carbon adsorption technology. Here is some characteristics of activated carbon, only do brief introduction: activated carbon is widely used in drinking water and food industry, chemical industry, electric power and other industrial water purification, dehydrogenation, oil removal and to smell, etc. Usually, can remove 63% 86% colloidal substance; About 50% of the iron; And 47% to 60% of organic matter.
In the field of water treatment chemicals, fungicides, sterilization and algae removal agent, slime stripping agent and scale inhibitor as the most popular products, the relevant product manufacturers will always increase the production of products. In the current situation of water treatment, the demand for different types of chemicals, especially the reverse osmosis scale inhibitor, is increasing in the field of water treatment. So the related organizations also gradually increase the actual production of products. But for the general water treatment agent manufacturers, they if only a simple production of a certain kind of medicine may have been eliminated by the industry, for reverse osmosis scale manufacturers in terms of. This requires the production of synthetic preparation. Then, the reverse osmosis scale inhibitor manufacturers will use what kind of raw materials for product synthesis? From the professional point of view, reverse osmosis antisludging agent as reverse osmosis membrane system important agents, in the maintenance of reverse osmosis membrane system normal operation is of great significance. Therefore, reverse osmosis membrane system is inseparable from the reverse osmosis antisludging agent. If in reverse osmosis membrane during the operation of the system, not suitable reverse osmosis antisludging agent, not only makes the reverse osmosis membrane system is limited, while it may be the reverse osmosis membrane system is invalid, water quality is not up to the standard, very easy to cause the serious consequences. Therefore, the choice of appropriate reverse osmosis scale inhibitor for reverse osmosis membrane system has a decisive role in the normal operation. The characteristics of the pharmaceutical products produced by the professional reverse osmosis scale inhibitor are mainly: In the concentration range of effective control of inorganic scaling; not with iron and aluminum oxide and silicon compounds unite to form insoluble; can effectively inhibit the silicon of aggregation and deposition and concentration of the water side of the SiO2 concentration up to 290ppm; used in reverse osmosis Ca and TFC membrane, nanofiltration and ultrafiltration; extremely good solubility and stability; feed water pH value in the range of 5-10 are valid. As an important product in the product line of scale inhibitor, the reverse osmosis scale inhibitor is of great significance to the maintenance of the operation of the reverse osmosis membrane system. Modern professional reverse osmosis scale manufacturers in the preparation of products will often use the following basic raw materials: Non phosphorus scale inhibition and dispersion agent, mass fraction 4%-40%, non phosphate acrylic acid copolymer mass fraction 2%-20%, low phosphorus phosphorus acid mass fraction 1%-5%, margin for pure water. The membrane scale inhibitor preparation method: the non phosphate scale inhibitor dispersant, non phosphorus acrylic acid copolymer in proportion to join in order to add part of pure water and stir evenly. Feed liquid is heated to 50 DEG C, moisturizing for 2 hours, then cool to 22 DEG C; by adding the proportion of low phosphorus phosphine carboxylic acid and filled should be added to the pure water. The membrane scale inhibitor can be used in reverse osmosis and ultrafiltration, nanofiltration membrane and water treatment system. In fact, according to the different components of the reverse osmosis scale inhibitor, the preparation method is not the same. Generally can be divided into non phosphorus scale inhibitor and organic phosphorus scale inhibitor. At present, most of the market for organic phosphorus scale inhibitor. Professional manufacturers to provide OEM production, just need to put your raw materials (can be removed from the raw material name, code instead of) and production process, we can you produce high-quality products.
Abstract: This paper the circulating water saving emission reduction technology technical background, circulating cooling water status and existing problems, analyzes the harm of scale, puts forward the key economic operation of circulating cooling water system, and discusses the new technologies for the treatment of circulating cooling water and zero emissions. Key words: circulating cooling water; zero discharge; high concentration ratio; saving energy and reducing consumption 0 Introduction High water consumption and low repetition rate are the outstanding problems in the utilization of water resources in China's industrial system. Therefore, saving industrial cooling water, so that the limited water resources to maximize the use of water conservation in the industrial field is the most important. With the rapid development of modern construction, the demand for water resources is increasing day by day, the water has become a valuable resource for China's economic and social development, water conservation has become an important policy of the party and the country. 1 technical background China has more than 1/5 of the world's total population, but its water resources are less than 10% of the world's total, while the per capita water consumption is only 25% of the world average, which is recognized by the United Nations as a lack of water resources. Not only that, the distribution of water resources in China is also very uneven, the south region of the Yangtze River accounts for 4/5 of the total water in China, and this region is only 1/3 of the total area of China, but the majority of the northern region of water conservancy is only 1/5. Based on this China in 2012 promulgated the "the most stringent water resources management system", through this "most" can be seen in the lack of water resources, but also reflects the Chinese water resources to optimize the control of the firm belief. China industry continuously upgrade the level, fresh water consumption is also growing, which makes the original lack of water resources in northern areas are faced with more serious situation of water shortage, the related research shows, China's per capita water about 2 400 t, but in the north is less than the data of 1 / 10. In the town water, accounting for the proportion of industrial use 3 / 5 to 4 / 5, which the industrial circulating cooling water is 4 / 5 of the total industrial water around, and industrial water use in China did not establish effective circulation utilization mechanism, reuse is only 2 / 5. Therefore, the water has become the precious resources for economic and social development. Saving water has become the focus of the work of the party and the state. 2 circulating cooling water system utilization status and problems Cooling water is circulating in the circulatory system, but in practical application, the waste of resources caused by the lack of design and so on, which can cause a lot of problems. 2.1 changes in cooling water Cooling water will not only according to different seasons change, also according to the heat exchange equipment heat load change, but if the cooling water changes and circulating water pump to the unified operation, it will reduce the operational efficiency, resulting in a waste of energy. Therefore, it is necessary to to according to the different cooling water, timely adjustment of the circulating water pump. 2.2 cooling tower Cooling tower design condition usually operating conditions at greater than design standards, but such unfavorable conditions just for a 1 in a fraction of the time, and the rest of the time, no need to maintain the cooling capacity of design, it will also wind energy and electric energy waste. Therefore, we should of cooling tower fan operation mode to take the optimization and adjustment, with minimum energy consumption to achieve the cooling ability. 2.3 cooling pool Although the cooling pool is easy to operate, water is convenient, but it is easy to be affected by solar radiation, high temperature in summer and so on. And easy to siltation, will by clearing up the difficulties caused by environmental pollution, so usually cooling pool for cooling water, cooling water temperature is not strictly, and there can make use of the reservoir, depression ponds, rivers, lakes and other areas. Harm 3, scale Scale chemical properties is very stable, will not only heat affected exchange rate, consumption of energy (1 mm thick scale can consume 10% more energy), and a multi scale will plug the pipe, the water a little, that pose a security risk. In the hot water engineering for proper water treatment, can make the thermal efficiency increased by 20% ~ 40%, the equipment service life increased by 1 times to 2 times, equipment maintenance rate decreased by 20% ~ 30%. Circulating water system in the most easy to generate scale is CaCO3 scale, scale control is prevent the precipitation of CaCO3, generally have the following several kinds of methods. 3.1 reagent method Water circulation is the blood of industrial enterprises, the circulating water adding scale inhibitor, destruction of the crystallization of CaCO3 growth process, so as to achieve the purposes of controlling the formation of scale, which is currently the most widely used. Today more than half of China's industrial circulating water is performed by the traditional method: scale inhibitor, bactericide, fire foam stabilizer and adding acid etc. in a variety of ways, concentration ratio is usually 2 times to 4 times, so in order to prevent the scaling and corrosion, and need to sewage treatment, individual enterprises after discharge were unified treatment, reuse, this way will undoubtedly make the cost of sewage treatment greatly improved. In this way, the cost of Biochemistry and recovery will reach 4 yuan /m3, the cost of recycling 75% recycled water nearly 2000 x 104 yuan. This way not only costs high, but also can not make salt concentration and other issues completely resolved, but also because of various types of water treatment agent input, greatly increased the cost of running. 3.2 softening method A) ion exchange resin method. Removal of salt in the water to make the circulating water is not dirty, but the system corrosion rate is 3 times the rate of corrosion of the untreated water. Equipment corrosion caused by iron scale production, and the life of the equipment is greatly reduced, the operating cost is high and the pollution of wastewater generated by the environment, the system size is limited; B) water through reverse osmosis membrane treatment. This method has a great investment, and easy to generate part of the high concentration of salt water can not be processed. 3.3 physical law Mainly including electromagnetic, electrolysis and electro - adsorption and so on, but this technology has yet to be further studied, the effect is poor
Circulating water treatment agent is to ensure that the normal use of the premise of recycled water, recycled water if not treated, its life is limited, circulating water will breed bacteria, algae, etc., in order to be an effective long-term cycle of water use, we need to put in the water circulating water treatment agent.Common circulating water treatment agent are: 1 inhibitor Many varieties of corrosion inhibitors such as phosphate, chromate, nitrate and the like; wherein chromate its toxicity is eliminated, phosphate occupy an important position. Phosphate is better to solve the cooling water system to produce calcium carbonate scale problem, but the organic polycarboxylic acid is not effective in inhibiting calcium phosphate, zinc scale and other dirt classes phosphorus-based zinc and phosphorus produced water treatment formula. Meanwhile, with the provision of sewage world phosphorus discharge limits its use. 2, scale dispersant The first scale dispersant is polyacrylic acid (sodium), calcium carbonate scale its good scale inhibition performance but very low calcium deposition. Such polylactic acid type scale inhibitor not only cohesion and dispersion, as well as the role of the crystal lattice distortion occurs in the growth process, thus preventing a solid deposition of metal heat transfer surface fouling layer. Both later found to inhibit the ability of the acrylic copolymer is excellent, which gradually replaced the polyacrylic acid (sodium). 3, biocides According to incomplete statistics, the domestic circulating cooling water biocide nearly 80 species, divided into two categories: one for a non-oxidizing biocide oxidizing biocides, including some surfactants. Oxidizing biocide mainly chlorine, bromine, ozone, etc., which the chlorine-based. Chlorine as a biocide in the past for a long period of time, dominant, but because of its use of water PH condition limitations and state control over waste water residual chlorine, chlorine is limited. 4, flocculants Flocculant has a very important role in water treatment. It can be used to reduce water turbidity, color and other sensory indicators, to remove a variety of organic polymer, certain heavy metals and radioactive substances. Inorganic salts of low molecular weight flocculants are mainly aluminum and iron salts, currently very few industrial applications. Compared with conventional inorganic polymer flocculant iron salts, having good cohesion, floc formation speed, large dense mass settlement rate and other advantages and low price than the organic polymer flocculant.
Recently, in the 2016 national work conference on environmental protection, the ministry clearly "Thirteen Five" six major tasks are: in-depth implementation of the air, water and soil pollution prevention and control of the three action plans; accelerate the construction of endogenous mechanisms for green development; effectively optimize the spatial pattern of ecological civilization construction; actively promote supply-side structural reforms; strengthen environmental risk prevention and control efforts; vigorously promote green production and lifestyle. Early neglect of economic development and environmental protection has brought adverse effects, haze, water pollution and soil pollution situation is also increasing. With the Ministry of Environmental Protection unequivocal "Thirteen Five" key job content, environmental management work orderly, environmental protection industry segments will usher in development opportunities. The concept of environmental protection industry and policy environment Department of environmental protection industry refers to types of activities from prevention of environmental pollution, improve the ecological environment, the protection of natural resources perspective carried out, including product development, commercial distribution, information services and project contracting and other aspects. China is experiencing rapid economic development early "hangover" left behind - environmental pollution. Specifically in the overall amount pollution emissions, far more than the self-purification capacity of the environment, industrial pollution control task is arduous; the increasing proportion of urban domestic pollution; water quality and soil pollution in rural areas increasing and so on. Affected countries are continuing to adopt policy documents to promote the development of the environmental industry: early 2015, China's "new environmental law" official purposes, this is known as the most severe and the introduction of the world's best "Environmental Protection Law", also The reaction of the Chinese government's determination to vigorously improve the situation of environmental protection. Subsequently, the State Council issued the "State Council on the implementation of environmental management of third-party opinions" (hereinafter "Opinion"), the "Opinions" clearly will be the development of the capital markets environment, covering third-party companies fulfill the conditions of governance, financial institutions and the issuance of corporate bonds and other priority review. "Thirteen Five" plan proposal, "Strengthening ecological civilization", "build a beautiful China", "low carbon economy" and has also been an emphasis on content, which means that the next five years and beyond, and environmental protection industries You will get behind the policy. Environmental development situation and prospects China's environmental protection industry in the first half 2015 revenue 112.079 billion yuan, an increase of 8.61%. Expects a tough environmental situation and policy behind, the next few years China will form a market size of environmental protection 80000-10000000000000 yuan, the environmental protection industry has gradually become China's new economic growth point. Environmental segments Nuggets Affected by this positive impact, the environmental protection industry in air pollution, water pollution control and soil remediation three segments will usher in development opportunities. Among them, in the field of air pollution control, air quality testing companies, air purifier manufacturers, atmospheric dust and industrial dust processing enterprises and sulfide stock companies will benefit. Sewage treatment is divided into lifestyle sewage and industrial wastewater treatment categories, the former now have a higher processing rate, the future will be the focus of industrial wastewater treatment. Domestic wastewater treatment in industrial enterprises Tianjin Film Technology, Wan Banda, is expected to benefit. Moreover, Baan water and clean water sources and other water companies have received orders PPP, PPP will be (ie cooperation between the Government and social capital) mode in the field of environmental protection is currently being vigorously promoted, and therefore will also get good. Compared with the atmosphere, water pollution control, soil pollution China has just started, the larger the overall gap in our environmental services, involving soil remediation of ecological restoration business accounted for only 3.7%. But once the market opens, its size will be far greater than the atmospheric and water pollution control, soil remediation market is expected to scale the future of our country should reach 10 trillion level. A-share market in the soil remediation companies have Yongqing environmental protection, Weier Li, Hud ecology, Hongda Industrial, DJEC, Sander environment, under the "soil ten" the upcoming release of the news, such enterprises will be in the capital profit on the market.
Recently issued MIIT "Guiding Opinions on Promoting the normative development of the chemical park" proposed, according to town and country planning, land use planning, combined with eco-region conservation planning and environmental planning requirements, the scientific development of the overall park development planning, and project management, security management , green development, two of the depth of integration initiatives put forward specific requirements and ancillary services five aspects. "Chemical Besieged City" is the current problems faced by many cities in China. On the one hand it is a serious environmental, safety hazards and increasing public environmental quality requirements, on the other hand is difficult to advance the relocation project. Crack "Chemical Besieged City" issue, but also various efforts. Behind the high value of environmental protection, security risks Chemical industry high value, more tax revenue, is an important source of revenue and the GDP, has been fighting around the "meat and potatoes." According to "China Petrochemical Annual Report 2014", the chemical industry has become an important pillar of China's economic development. 2014, China's petrochemical industry output value reached 13 trillion yuan, ranking second in the world; total profit of 739.02 billion yuan, accounting for 13.1 percent of total national-scale industrial profits. But the chemical industry to promote economic development, but also brought a series of environmental protection, security risks. China's chemical industry mostly built by the water, the river, the river area, dotted with a variety of chemical projects. But in recent years, accidents and pollution incidents frequently, forcing the chemical park to rethink how to live in harmony with the city. China Chemical Industrial Park construction began in the early 1990s, the construction speed significantly accelerated after 2000. By the end of 2014, the national focus on the chemical park or to the oil and chemical industries as the leading industrial parks total 381. Among them, the National Chemical Industry Park (including the national economic and technological development zones, high-tech industrial development zone) of the total 42, 221 provincial-level chemical park, 118 prefecture-level chemical parks. Correspondingly, the country formed a group of five chemical belt: First, Guangzhou, Shenzhen and the Pearl River Delta as the center of the chemical areas; Second, Tianjin, Liaoning and Shandong as the center of the Bohai Chemical Industry Zone; third is Shanghai, Nanjing , Suzhou, Yangtze River Delta region as the center of petrochemicals; Fourth, Sichuan, Chongqing as the center of the natural gas chemical industrial zone; Fifth, Shanxi, Shaanxi, Inner Mongolia as the center of coal chemical industry zone. "Chemical Rising" highlights the pain According to the National Development and Reform Commission issued the "petrochemical industrial layout plan", 2025 oil refining, ethylene and aromatic hydrocarbon production and processing capacity reached 850 million tons, 50 million tons and 40 million tons, gathering the construction of Shanghai Caojing, Ningbo, Zhejiang, Guangdong Huizhou, Fujian Ligure, Dalian Changxing Island, Hebei Caofeidian, Lianyungang seven bases. Dalian is China, "Sinopec Fortress Besieged" sample. From south to north, around the planning and construction of Dalian old ganjingzi, Double Island Bay, Dagushan, Pine Island, west of the island, Changxing and other petrochemical and chemical industry base or chain-related industrial park, heavy chemical projects like chess pieces like clouds in the hundreds of kilometers of coastline of this coastal city, surrounded by the potential of the urban form. In recent years, Dalian petrochemical industry safety and environmental incidents continuously. According to statistics, since 2010, the oil in Dalian subsidiary and related transportation business has been eight fires and explosions occur. The most serious accident occurred in the July 16, 2010, Dalian oil pipeline exploded, causing a large area of ​​marine pollution, the direct economic loss of over 220 million yuan. Nanjing is a typical petrochemical industrial city. Meishan, the coastal areas of the Yangtze River Bridge to Bridge, Jinling Petrochemical and peripherals, manufacturers distributed in areas densely area four hundred chemicals, iron and steel enterprises, almost peripheral to the main city of Nanjing, the city formed a "encirclement." The Nanjing surrounded by mountains, one side territorial waters, the main city located downwind of major industrial concentration area. As the largest northern port city of Tianjin chemical industry has been one of the eight pillar industries. Early in 2011, Tianjin Binhai New Area has become one of the largest integrated refining base, but also in North China's largest oil refining and deep processing base. Tianjin Binhai New Area, according to the government website, in 2015, petrochemical output value reached 450 billion yuan, accounting for about 19% of the new district industry. By 2020, the output value will reach 1.2 trillion yuan, accounting for about 29% of the new district industry. But in 2015 the Tianjin Port, "8-12" explosion sobering, and reflects the "Chemical Rising" pain. The solution road in where? "Chemical Besieged City" is the result of China's rapid urbanization and a lack of long-term planning layout chemical interaction. Crack fundamentally "Chemical Fortress Besieged" dilemma, we must co-ordinate planning chemical project, the full implementation of the strategic environmental assessment of the site of chemical projects rigorous evaluation and review. And to solve the "chemical Besieged City" a real threat, the most direct measure is the project to relocate. February 2014, the Nanjing Municipal Standing Committee held an ecological civilization construction survey will be decided in 10 years, the implementation of large-scale corporate relocation work in the chemical industry focused Jinling Petrochemical and peripherals, manufacturers and other places, also identified specific time Tables and roadmap. Since the implementation of the scheme, although a lot of small and medium enterprises have been relocated, but large corporations such as Jinling Petrochemical, the South Group, Yangzi Petrochemical, etc., because the relocation costs, staffing and other issues in trouble. Break through the road difficult, mainly three factors: First, many petrochemical enterprises unify the management of the headquarters of central enterprises, not by the local direct government control and restraint; the second is the relocation of the chemical industry requires a lot of capital investment, employee relocation, Unidentified relocation costs; third is to move the receiver must face reality and where to go. Tianjin Port after the explosion, the Ministry plans to promote the relocation of thousands of chemical companies, involving the relocation cost about 400 billion yuan. For the Minister of funding sources, the Ministry of Industry and Miao Wei said, "The next step will be further analyzed by differential rent, retreat into the part of the three-solving, local governments, enterprises solve part of the central government but also to the point necessary support, especially in the Midwest Less developed areas necessary to give a little support to promote the relocation of corporate restructuring and upgrading to solve, reduce pollution emissions. "But chemical projects must not be a move it off, to give full consideration to the capacity to accept and environmental capacity, and make proper placement of workers jobs. In addition, with the continuous improvement of public environmental awareness, and guide the public to participate effectively in the chemical industry project site, decision-making, operations in the past, should be a strong complement to government regulation. Therefore, to improve the system and mechanisms of public participation, from the level of a clear legal status of public participation. Strengthen chemical project information disclosure, so that residents know and understand the potential risks and environmental safety. Get support residents in the form of demonstration meetings, hearings, missionary activities.
First, Properties and Uses Non-phosphorus corrosion inhibitor is a green water treatment agent, it is not phosphorus, phosphorus discharge of sewage water demanding areas, it can greatly reduce the cost of sewage treatment; as phosphorus, reducing the circulating water system the proliferation of microorganisms, reducing the biocide, the amount of sludge remover. Two ,use (1) non-phosphorus corrosion inhibitor concentration 30mg / l, total hardness of 100 mg / l, total alkalinity, for example, the Yangtze River water 100 mg / l has a good inhibition effect, carbon steel corrosion rate less than 0.075mm / a. (2)River water non-phosphorus corrosion inhibitor concentration 30mg / l, total hardness of 300 mg / l, total alkalinity in the 200 mg / l, chloride ion greater than 300 mg / l with good corrosion effect, carbon steel corrosion rate less than 0.075mm / a. (3) non-phosphorus corrosion inhibitor concentration 60mg / l, total hardness of 50 mg / l, total alkalinity at 50 mg / Minjiang River and other effects such as corrosion and ultra-low water hardness conditions of good l. (4) non-phosphorus corrosion inhibitor may be compounded with other agents, the use of concentration can be greatly reduced; (5) single-use non-phosphorus corrosion inhibitors, the best use of concentration: 40-60mg / l. Third, packaging and storage Non-phosphorus corrosion inhibitor for the plastic barrel, 25kg per barrel or determined by the user. Storage period of months. Fourth, the Safety and Protection Non-phosphorus corrosion inhibitor is acidic, wearing glasses gloves when operating, avoid contact with skin and eyes, rinse with plenty of water after contact.
CAS No.139-07-1 Alias: benzalkonium chloride, benzalkonium chloride, benzalkonium chloride DDBAC, 1227 fungicides, bactericides 1227,1227 Formula: C21H38NCl relative molecular mass: 340.00 Structure: First, Properties and Uses 1227 fungicide is a cationic surfactant, is a non-oxidizing biocide water treatment agent, with broad-spectrum, highly effective biocide ability to effectively control the propagation of bacteria and algae in the water and slime growth, and has a good stick mud exfoliation and a certain dispersion, infiltration, but also has some degreasing, deodorizing ability and corrosion inhibition. 1227 fungicide toxicity, no accumulation of toxic and soluble in water, is not subject to influence of water hardness, it is widely used in petroleum, chemical, power, textile and other industries cooling water system to control the circulating cooling water bacteria and algae breeding system, to kill the sulfate-reducing bacteria have effects. Fungicides 1227 can be used as textile printing and dyeing industry, mildew agent, antistatic agents, emulsifiers, conditioning agents. Third, the use 1227 fungicide for sterilization, generally dosage of 50-100mg / L; as sludge remover, an amount of 200-300mg / L, can cast plus the amount of silicone defoamers when needed. Fungicides 1227 with other fungicides, such as isothiazolone ketone, glutaraldehyde, dithiocyanomethane used in conjunction, can play a synergistic role, but can not be combined with chlorophenols. 1227 fungicide after dosing the water cycle due to peeling dirt appear, should be filtered or remove, in order to avoid the deposition after the bubble disappears. Fungicides 1227 not with anionic surfactants such as polyacrylic acid, hydrolyzed polymaleic HPMA etc. mix. Fourth, the advantages of fungicides 1227 Ability to 1.1227 algae with broad-spectrum fungicide, efficient sterilization of the killing sulfate-reducing bacteria have effects 2. Water-soluble, easy to use, free from the influence of water hardness, but also has a strong slime stripping effect. 3. toxicity, no cumulative toxicity, unlike chlorine treated water containing residual chlorine, causing secondary pollution. 4. use of chlorine can not control systems, the product can effectively control algae breeding and slime growth. 5. Has the role of dispersion and penetration, can penetrate and remove slime and algae peel adhesion, and have the ability to oil, both clean oil effect. 6. adaptability: 1227 fungicides in different PH value range, the ability of sterilization are valid, that it can be used in acidic and alkaline conditions.
Circulating water treatment agent in the application process, mainly in the following categories: 1. Fungicides: Adding oxidizing biocides in the unit is running. Oxidizing biocides as conventional fungicides, the kinds of oxidizing agents will cause corrosion of equipment and facilities, so to control the amount of available chlorine control in about 1mg / L is safe, and the need to control the sterilization time. Non-oxidizing biocides also added during plant operation, usually in the spring and autumn, monthly or season shock dosing, 2. PFS: PFS can handle different power plants with sewage. This power plant water treatment chemicals have technical and economic advantages in water treatment, it is possible to solve the other agents when dealing with water quality consume large amount of drugs more difficult issues such as dehydration, which largely reduces the production costs and operating expenses. Especially for electroplating wastewater treatment and reuse is the most cost-effective and applicability of water treatment flocculant. 3. PAC: before use to do first settlement ratio test, after obtaining the basic data, according to the test dose added. The amount in the 30 ~ 120mg / L range, depending on the filter running water quality changes in the amount of reagent. The medicine with water at 1: 5 dilution ratio (solid dosage form by 1:15 dilution), using a metering pump the solution was pumped into the coagulation tower. Winter active sludge can be added to increase the sedimentation. 4. The composite scale and corrosion inhibitor: Before the unit is running, according to the amount of water once commonly used in industrial circulating water dosing agent is completed, the agent concentration at 10mg / L, the unit running Add: Pharmacy 1: 3 ratio into pharmaceutical Box , and diluted with water after using metering pump into the mix the drug is mixed, and then make it into the circulating pool. Control of the water cycle organic phosphine concentrations greater than or equal to 1.5mg / L, periodically circulating water sewage. Depending on the concentration of copper in water, add the appropriate amount of water-soluble copper corrosion control.
Strong Chlorine is a water treatment agent fungicide chemicals, high solubility of the product, has a strong effect of antivirus eliminate bacteria, so often used in the field of water disinfection. However, in addition to the use of this product in the field of water disinfection can also be disinfected for rice soaking. Then use the strong chlorine to disinfect Rice Soaking what good is it? The seeds were placed in the water after the election 清水中浸泡 24 hours, and then for the TCCA 300 times, the immersion 12 hours again. Or you can also use pouch TCCA currently on the market supply of 10 grams of packaging weight 3.5 kg plus 3 kg of seed flooding, repeated washing seeds soaked, thoroughly remove Smell re-germination. Strong Chlorine use of rice soaking, after Soaking classes of Bacterial disease, bacterial blight, Bakanae and rice blast fungus has a unique role in the killing, so that not only can control the field brought the introduction of seed bacteria source, to prevent them in the local spread, while attached to the surface of the seed can kill bacteria, reduce the number of drugs and dosage field during the growing season. Above it is Xiaobian to introduce the use of strong chlorine disinfection Soaking benefits of rice. Use this product for soaking rice, can effectively kill bacteria on the seeds to enhance the survival rate of seeds, and promote the growth of plants.

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