“The province’s promotion of zero discharge of waste water from nine chemical companies in Jincheng City led to the implementation of wastewater zero emission projects in the chemical, power, and coking industries, which enabled the province’s 410 million tons of industrial wastewater to be effectively treated.†Liu Xiangdong, Director of Shanxi Provincial Environmental Protection Bureau When it comes to the province's 2009 work to promote emission reduction work, this is said.
The nine Jincheng chemical companies that Liu Xiangdong refers to are: Shanxi Jinfeng Coal Chemical Co., Ltd., Shanxi Orchid Science and Technology Co., Ltd. Chemical Fertilizer Branch, Shanxi Lanzhou Yangcheng Chemical Fertilizer Co., Ltd., Shanxi Lanhua Coal Chemical Industry Co., Ltd., and Shanxi Orchid. Kechuang Tianyue Fertilizer Co., Ltd., Shanxi Lanhua Chemical Branch, Shanxi Tianze Yongfeng Chemical Fertilizer Co., Ltd., Shanxi Tianze Coal Chemical Group Co., Ltd. chemical plant and Shanxi Tianjiu Sinochem Gaoping Chemical Co., Ltd.
Jincheng is an important national production base for anthracite, with proven reserves of 27.1 billion tons, accounting for more than 1/4 of the country's total reserves. Jincheng has developed its coal chemical industry by virtue of its resource advantages and is one of the seven largest coal chemical bases in the country.
However, with the continuous expansion of the coal chemical industry in Jincheng, the environment is facing unprecedented pressure, and the situation of water pollution prevention and pollution reduction is very serious. The two main rivers in the city, the Danhe River and the Weihe River, have reached saturation levels, and Dan River has far exceeded its environmental capacity. The contradiction between the limited environmental capacity and the newly built expansion project has become the bottleneck restricting the sustainable development of Jincheng Coal Chemical Industry.
In June 2007, Jincheng raised the issue of zero discharge of wastewater from the production process for the first time at the workshop on environmental protection in the coal chemical industry of the city. The environmental protection department quickly organized related company leaders and experts to visit Shijiazhuang Zhengyuan Chemical Industry Group to investigate the zero discharge process of synthetic ammonia wastewater. , And invited experts to carry out field research on Jincheng coal chemical companies. Experts and related companies agree that the zero discharge of coal chemical production process wastewater is technically and economically feasible. It is predicted that if a coal chemical company with conditions in Jincheng implements zero discharge of wastewater, it can save 1 billion cubic meters of water each year.
To this end, Jincheng decided to start from the source, in the city's coal chemical industry to carry out pilot zero-emissions of production process wastewater, nine chemical companies to carry out technological transformation, to achieve zero discharge of production process wastewater.
Shanxi Jinfeng Coal Chemical Co., Ltd., Shanxi Lanhua Science and Technology Co., Ltd. Chemical Fertilizer Branch Company, and Shanxi Lanzhou Yangcheng Chemical Fertilizer Co., Ltd. took the lead. They entrusted Hebei Zhengyuan Company to carry out the zero-emission plan design of chemical fertilizer production wastewater, and took the lead in implementing production. Zero discharge project for sewage. Among them, Yanghua Chemical Co., Ltd. uses micro-turbulence clarification process to treat the gasification wastewater, and the biological contact oxidation process is used to treat the entire company's wastewater. The treatment scale is 26,040 cubic meters per day. In 2008, only 6 million tons of fresh water are saved, and emission reduction is achieved. Chemical oxygen demand 112.32 tons.
At the beginning of 2008, Jinfeng Company started to start zero discharge of production wastewater. The company invested more than 34 million yuan and conducted 31 wastewater treatment and reuse technological transformation projects. Through cleanup and diversion, the entire process wastewater and domestic sewage were sent to the sewage treatment station for centralized treatment, and the front-mounted denitrification biological denitrification treatment was adopted. The MBR membrane treatment process treats the waste water at the terminal, and transfers more than 85% of the treated waste water to the reclaimed water reuse device. After flocculation, ozonation, filtration, and reverse osmosis treatment, it is recycled and reused, achieving zero emissions.
In 2009, Jinfeng Company stably achieved various technical targets for zero discharge of production waste water. In October 2009, it received a reward of RMB 800,000 for the Zero Emission Demonstration Project of the Shanxi Provincial Environmental Protection Department.
At present, 9 chemical companies in Jincheng have all achieved zero discharge of production wastewater, and their successful experience has played a role in demonstrating and promoting the treatment of wastewater from industrial enterprises in Shanxi Province. Last year, Shanxi Provincial Environmental Protection Bureau and 20 key enterprises in the province signed a responsibility statement on the zero discharge of production wastewater. The 20 companies are required to use the experience of Jincheng coal chemical companies to promote the implementation of the zero discharge project for production wastewater.
Shanxi Fengxi Huarui Coal Chemical Industry Co., Ltd. in the early part of 2009 took the Jinfeng company model for reference, and included the implementation of the Zhongshui reuse project as one of the 14 technical reform projects in the year. The deployment personnel repeatedly went to Jinfeng company to study in the current year. In early July, a new water recycling facility with a capacity of 3,000 cubic meters per day was newly installed. The device can recover and reduce 50 cubic meters of waste water per hour, reducing the total external drainage of Fengxi Huarui by 50%, and saving 420,000 cubic meters of water annually. In addition, companies such as Tianji Chemical Group Co., Ltd. also learned from the implementation of a zero-emission project for production wastewater.
Shanxi's electric power, coal, and steel companies have also begun to actively promote zero discharge of wastewater from production. For example, Shanxi Coal Power Group, Datong Coal Mining Group, Yangquan Coal Mining Group, and Shanxi Panan Mining Company have used 80% of their waste water. the above.
In 2010, Shanxi Province plans to further introduce zero discharge of wastewater from production to the province, and make greater contributions to the province's energy-saving emission reduction and "blue sky clear water project."
The nine Jincheng chemical companies that Liu Xiangdong refers to are: Shanxi Jinfeng Coal Chemical Co., Ltd., Shanxi Orchid Science and Technology Co., Ltd. Chemical Fertilizer Branch, Shanxi Lanzhou Yangcheng Chemical Fertilizer Co., Ltd., Shanxi Lanhua Coal Chemical Industry Co., Ltd., and Shanxi Orchid. Kechuang Tianyue Fertilizer Co., Ltd., Shanxi Lanhua Chemical Branch, Shanxi Tianze Yongfeng Chemical Fertilizer Co., Ltd., Shanxi Tianze Coal Chemical Group Co., Ltd. chemical plant and Shanxi Tianjiu Sinochem Gaoping Chemical Co., Ltd.
Jincheng is an important national production base for anthracite, with proven reserves of 27.1 billion tons, accounting for more than 1/4 of the country's total reserves. Jincheng has developed its coal chemical industry by virtue of its resource advantages and is one of the seven largest coal chemical bases in the country.
However, with the continuous expansion of the coal chemical industry in Jincheng, the environment is facing unprecedented pressure, and the situation of water pollution prevention and pollution reduction is very serious. The two main rivers in the city, the Danhe River and the Weihe River, have reached saturation levels, and Dan River has far exceeded its environmental capacity. The contradiction between the limited environmental capacity and the newly built expansion project has become the bottleneck restricting the sustainable development of Jincheng Coal Chemical Industry.
In June 2007, Jincheng raised the issue of zero discharge of wastewater from the production process for the first time at the workshop on environmental protection in the coal chemical industry of the city. The environmental protection department quickly organized related company leaders and experts to visit Shijiazhuang Zhengyuan Chemical Industry Group to investigate the zero discharge process of synthetic ammonia wastewater. , And invited experts to carry out field research on Jincheng coal chemical companies. Experts and related companies agree that the zero discharge of coal chemical production process wastewater is technically and economically feasible. It is predicted that if a coal chemical company with conditions in Jincheng implements zero discharge of wastewater, it can save 1 billion cubic meters of water each year.
To this end, Jincheng decided to start from the source, in the city's coal chemical industry to carry out pilot zero-emissions of production process wastewater, nine chemical companies to carry out technological transformation, to achieve zero discharge of production process wastewater.
Shanxi Jinfeng Coal Chemical Co., Ltd., Shanxi Lanhua Science and Technology Co., Ltd. Chemical Fertilizer Branch Company, and Shanxi Lanzhou Yangcheng Chemical Fertilizer Co., Ltd. took the lead. They entrusted Hebei Zhengyuan Company to carry out the zero-emission plan design of chemical fertilizer production wastewater, and took the lead in implementing production. Zero discharge project for sewage. Among them, Yanghua Chemical Co., Ltd. uses micro-turbulence clarification process to treat the gasification wastewater, and the biological contact oxidation process is used to treat the entire company's wastewater. The treatment scale is 26,040 cubic meters per day. In 2008, only 6 million tons of fresh water are saved, and emission reduction is achieved. Chemical oxygen demand 112.32 tons.
At the beginning of 2008, Jinfeng Company started to start zero discharge of production wastewater. The company invested more than 34 million yuan and conducted 31 wastewater treatment and reuse technological transformation projects. Through cleanup and diversion, the entire process wastewater and domestic sewage were sent to the sewage treatment station for centralized treatment, and the front-mounted denitrification biological denitrification treatment was adopted. The MBR membrane treatment process treats the waste water at the terminal, and transfers more than 85% of the treated waste water to the reclaimed water reuse device. After flocculation, ozonation, filtration, and reverse osmosis treatment, it is recycled and reused, achieving zero emissions.
In 2009, Jinfeng Company stably achieved various technical targets for zero discharge of production waste water. In October 2009, it received a reward of RMB 800,000 for the Zero Emission Demonstration Project of the Shanxi Provincial Environmental Protection Department.
At present, 9 chemical companies in Jincheng have all achieved zero discharge of production wastewater, and their successful experience has played a role in demonstrating and promoting the treatment of wastewater from industrial enterprises in Shanxi Province. Last year, Shanxi Provincial Environmental Protection Bureau and 20 key enterprises in the province signed a responsibility statement on the zero discharge of production wastewater. The 20 companies are required to use the experience of Jincheng coal chemical companies to promote the implementation of the zero discharge project for production wastewater.
Shanxi Fengxi Huarui Coal Chemical Industry Co., Ltd. in the early part of 2009 took the Jinfeng company model for reference, and included the implementation of the Zhongshui reuse project as one of the 14 technical reform projects in the year. The deployment personnel repeatedly went to Jinfeng company to study in the current year. In early July, a new water recycling facility with a capacity of 3,000 cubic meters per day was newly installed. The device can recover and reduce 50 cubic meters of waste water per hour, reducing the total external drainage of Fengxi Huarui by 50%, and saving 420,000 cubic meters of water annually. In addition, companies such as Tianji Chemical Group Co., Ltd. also learned from the implementation of a zero-emission project for production wastewater.
Shanxi's electric power, coal, and steel companies have also begun to actively promote zero discharge of wastewater from production. For example, Shanxi Coal Power Group, Datong Coal Mining Group, Yangquan Coal Mining Group, and Shanxi Panan Mining Company have used 80% of their waste water. the above.
In 2010, Shanxi Province plans to further introduce zero discharge of wastewater from production to the province, and make greater contributions to the province's energy-saving emission reduction and "blue sky clear water project."
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