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In the initial stage of construction, Changshou Chemical Industrial Park invested several million yuan in environmental and industrial planning. They entrusted relevant units to compile the “Chongqing Chemical Industrial Park Industrial Development and Control Plan†and make full use of the abundant natural gas, brine, etc. in the region. Resources, linking the "product chain" and extending it up and down, designed the ecological "Internet" of natural gas chemical industry, and formed the four major industries of natural gas chemical industry, petrochemical industry, biochemical industry, new materials and fine chemical industry. As Chen Jinshan, chairman of the Chemical Park Co., Ltd. said, the design plan also enables investors to order food according to orders, which greatly increases the efficiency of attracting investment in the park.
At present, the total investment of the park has exceeded 50 billion yuan. Chongqing Global Petrochemical Co., Ltd. is an enterprise that entered the park early. The company invested 90 million yuan to build a sewage treatment plant, which accounts for 1/3 of the total investment, and treats 5,000 tons of sewage daily, which is equivalent to a sewage treatment plant in a medium-sized city. The plant is a chemical company that uses sweet potatoes to produce alcohol. Since three ecological industrial chains have been established, all wastes have been comprehensively utilized. The bad residue is used to produce organic fertilizers; carbon dioxide is used to produce beverages and supply Sichuan Vinylon in the park. Plants, Jianye Chemicals, etc. produce methanol; biogas is used to produce steam, and sewage is recycled after being treated for cooling water, condiments, and water.
Changshou Chemical Industrial Park also adheres to the five "integration" ideas. That is, integration of product projects, integration of public projects, integration of environmental protection, integration of logistics and distribution, and integration of management services. According to the plan, the park invested more than 2 billion yuan, built a cogeneration project and a sewage treatment system, implemented the integration of “water supply, power supply, heating, and gas supply†to form a public project “island†and Gas, heat and other service projects implement intensive management. The Changyang Thermal Energy Company, which is responsible for the public project “island†project, has built two 130-ton/hour high-temperature and high-pressure circulating fluidized steam boilers and a 25,000-kilovolt generator set for the first phase of the project. 200,000 tons of inferior coal. Due to the advanced electrostatic dust removal technology and furnace desulfurization technology, the effective dust removal rate and desulfurization rate are all over 90%, which solves the dust pollution. At the same time, the cinder will be sold to the cement plant. All wastes can be recycled and reused, and 200,000 tons of solid waste will be eaten in a year, which will be digested by eight companies in the park. From the “three wastesâ€, the company also “got out†10 million yuan. The park also implements a two-stage sewage treatment system. First, the company pre-treats the plant's sewage, ensures that the company's sewage discharge characteristic pollution factor reaches one level, and the conventional pollution factor reaches the three-level discharge standard, and then enters the park's public sewage pipe network and collects it. Sewage treatment plants conduct centralized treatment and discharge them in a unified way after reaching the discharge standard.
Through development and construction, Changshou Chemical Industrial Park relies on the existing 250 tons/day domestic waste disposal site, 50,000 tons/day domestic sewage treatment plant and 40,000 tons/day domestic waste treatment plant in the completed park, 2.7 million tons/day risk The waste disposal site, as well as the planned 250,000 tons/year general industrial solid waste disposal site and the 3 million tons/year chemical dangerous goods ship washing base, can realize the centralized treatment of the production, domestic garbage and sewage in the park, and Chemicals are burned, solidified, and buried. It has fully improved the treatment rate of pollutants in the park, handled the compliance rate, and the utilization rate of resources, reduced energy consumption, and laid a solid foundation for the coordinated development of the chemical industry park.
Chongqing (Changshou) Chemical Industry Park starts from three “canâ€s
The first consideration for each previous project in the park is whether it can be linked to upstream and downstream products, whether it can be combined with related products, and whether the resources can be comprehensively used until the “exhaustionâ€. After six years of development in Chongqing (Changshou) Chemical Industry Park, it is through such attempts and explorations that it not only created the park's unique circular economy development model, but also achieved the compliance of all 42 chemical companies entering the park.