Nantong Jiangshan pesticide chemistry: first, out of the city into the park envi
Nantong Jiangshan Pesticide Chemical industry Limited relocation transformation Record
Recent years, the Pesticide Chemical Co., Ltd. Nantong country to out of town into the park as an opportunity to highlight the product structure adjustment and industrial upgrading, to pollution prevention, energy conservation as a sustainable development strategy.
In the process of transforming the relocation, the Company eliminated monocrotophos, diketene, diaphragm caustic soda, calcium carbide process PVC and a number of high energy consumption, heavy pollution, lack of market competitive products, greatly reducing the pollutant total emissions. For reservations Product, absorbed through the active introduction of international advanced level of technology, equipment and control methods to achieve the overall technology and production equipment Environmental protection Levels increased significantly.
It is understood that in recent years, the company invested in the relocation project, total funding for environmental protection more than 300 million yuan, total investment of more than 10%. Pollutant source control and the company based on the principle of combining the end of treatment, the removal process focused on process optimization and advanced equipment from the introduction of aspects of the implementation of a strategic breakthrough.
In basic chemical industry, with advanced production equipment to replace the traditional ion-exchange membrane caustic soda production line. One secondary brine purification, electrolysis, and part of the introduction of fresh brine dechlorination device Asahi Kasei Co., Ltd., and Caustic evaporation part of the company's equipment imported from Italy SET; high purity hydrochloric acid part of the SGL from the German company has introduced advanced, efficient, energy-saving "four One "hydrochloric acid synthesis furnace; chlorine and hydrogen treatment, chlorine gas liquefaction plant also uses the domestic advanced and mature technology route. Relative to the diaphragm caustic soda production process, the ionic membrane caustic soda production to avoid the waste of asbestos fiber pollution of the environment, reduce power consumption per ton of caustic soda more than 200 kwh.
Chlorine compression Transportation Equipment 3K produced by the German turbine machine, liquid ring pump has more than 50% of the energy-saving advantages. The production of liquid chlorine used in the pressure method, lithium bromide chillers for chlorine liquefaction, and the old ammonia? Calcium chloride brine than indirect freezing process, with significant energy, safety advantage, power savings of 30% to 40% but fundamentally eliminate the chlorine and ammonia refrigeration media exposure may have the opportunity of nitrogen chloride.
Control "Cleaner production standard chlor-alkali industry (caustic soda)" standard, the unit indicators chlor-alkali industry in the country a leading position in the sustainable development of the chlor-alkali enterprises with a demonstration effect.
In pesticide products, focusing on modern technology to enhance the level of glyphosate device. IDAN glyphosate adopt international advanced method of Green Chemistry Synthesis Technology, which uses PMIDA? Air? Catalyst Oxidation glyphosate. The process uses air as an oxidant instead of green materials hazardous chemicals, hydrogen peroxide, hydrogen peroxide is used to overcome the process of flammable and explosive hazardous waste large and produce a large number of outstanding problems, while some of the successful recycling of the reaction mother liquor. Water vapor condensation for the production of phosphorous acid, back for the condensation process. Imported advanced horizontal production Centrifuge , Cake moisture content decreased from 12% to 8%, an increase of glyphosate drying equipment and reduce the drying process steam consumption. Alkaline solution of ammonia produced during part of the mother liquor and used directly for glyphosate and 10% of agent preparation, thus saving a lot of ammonia, some absorption into ammonia, ammonia 36,500 tons annual output of 10%.
Glycine method the company used technology on the original glyphosate production process of technological innovation, pollutant emissions have fallen significantly. Comparison of old and new devices, Methanol Residue of chemical oxygen demand, total phosphorus decreased 60%, liquor evaporation of wastewater chemical oxygen demand, total phosphorus, ammonia nitrogen fell more than 50%, greatly reduces the difficulty of wastewater treatment.
Addition, the company for the production process of high nitrogen, high phosphorus characteristics of investment of nearly 40 million yuan into the advanced technology of biological wastewater treatment plants, pollutant removal efficiency over 80% of chemical oxygen demand, ammonia 90 %, and total phosphorus above 70%. Invested 22 million yuan reference sets of advanced equipment, and built a processing capacity of 6 t / waste and 15 tons / day of solid waste incinerator plant. According to the characteristics of waste water, waste water set up multiple lines and multiple water storage areas, and strictly in accordance with the "clean-up diversion, rain and sewage diversion," the principle of setting discharge system, accumulated investment of more than 2000 million yuan and a variety of regional accident emergency pool 10, the emergency handling capacity of 6000 cubic meters.
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