Soy sauce industrial waste water, deep treatment, water becomes clear, more than a dozen red parrots swim in the fish tank with this kind of clean water.

This is a reporter in Hebei Kingboard coking limited company wastewater treatment plant to see the scene. The main production and operation of coke, methanol chemical enterprises, in 2014 because of the high concentration of coking waste water, coke oven emissions, etc., was fined 2 million 450 thousand yuan by the Xingtai environmental protection agency. "The lesson of the renovation was very impressive. As a warning for the future, we decided to change the idea of enterprise development." Du Xuliang, deputy general manager of the company, said, "it was a passive response to environmental protection, and now it is on its own initiative."."

It is also in that year, they hand in hand Beijing Normal University set up a national key laboratory, launched technical advice, achievements transformation, personnel training and many other aspects of cooperation.

"The depth of coking waste water treatment is the latest achievement of the laboratory, the depth of the treated water reuse index is close to pure water," Du Xuliang said, "although the initial investment, but the promotion postprocessing cost per ton or down only two dollars, effectively reducing the production cost of enterprises."

In addition, the company will reduce emissions, offset processing costs and make profits by converting coke oven gas into acetic acid, fertilizer and other products. "Through the intensive treatment of pollutants and recycling, each year for enterprises to bring about 55000000 yuan of economic benefits." Zhao Jimin, general manager of the company said.

In 3 years, the company has invested 630 million yuan of funds, focusing on the construction of industrial waste management, water pollution control, solid waste disposal and other advanced environmental protection facilities, to achieve re-use of national emission standards and superior resources. China, academician of the Academy of engineering of air pollution prevention and control expert Hao Jiming believes that the "technological innovation, the creation of the" resources - products - Waste - renewable resources, "the cycle of material flow mode and the internal system of circular economy mode of operation, to achieve the transformation and upgrading, green development."

Source: People's daily