With the increasing opportunities for the industrialization of the water industry, the state's support policies are getting better and better, and the urban water market is showing a trend of diversified development, which makes some outstanding water companies stand out with their unique core technologies. The industry is bullish. This is exactly the case of Shanghai Dongshuo Environmental Technology Co., Ltd. With its technical direction of EMBR membrane bioreactor, it has grown and developed in the increasingly competitive urban water industry market ...
Chen Yegang, chairman of Shanghai Dongshuo Environmental Technology Co., Ltd. (hereinafter referred to as "Dongshuo Environmental"), stated at the "2010 Advanced Water Technology Forum" jointly sponsored by China Water Network and the Department of Environmental Science and Engineering of Tsinghua University. Companies with environmental protection technology as their main business need a persistent spirit in the field of technical tackling. At the same time, with the increasing market demand, the comprehensiveness of the technology has a new test, which is precisely based on such a demand. Dongshuo Environmental Protection focuses on the development of a technological direction-the EMBR membrane bioreactor is used to recycle wastewater resources.
Chen Yegang introduced that EMBR has great advantages in engineering applications, which can solve the problem of oxidation efficiency and improve 30-50%; solve the problem of mass transfer efficiency, reduce organic pollution on the surface of the membrane, and increase the flux of the membrane. EMBR can be widely used in various This kind of industrial wastewater is treated in depth; it can solve the problem of oxidation status, improve the biodegradability of refractory wastewater, make full use of microbial effects, and reduce operating costs.
It is understood that in several industries, especially in the coking industry, petrochemical industry, and some automotive and construction industries, the technical and emission standards are not perfect and unified, which has led to non-compliance across the line. As a result, the state-owned enterprises are under great pressure. In some areas, the approval of the entire region or river basin has been restricted because one enterprise's emissions have not met the standards.
At present, in the coking industry, if the conventional biochemical treatment is not up to standard, a large amount of investment will cause excessive operating costs. At present, domestic coking enterprises have not yet reached the capacity to pay the operating costs. Therefore, the treatment of energy saving and energy consumption has become the direction of technological exploration. By this, Dongshuo Environmental Protection is currently focusing on three technical directions including three-dimensional electrode electrolysis, photocatalytic oxidation technology and chemical oxidation technology. For wastewater with relatively high COD emissions, Chen Yegang believes that the biological treatment method is definitely the lowest operating cost. Through three-dimensional electrolysis and oxidation, combined with biological treatment, COD can be reduced to below 100, or below 80 to 60 to meet the reuse standard.
If the membrane is introduced, it is of great concern whether the membrane is contaminated and whether it can be maintained in a constant range. In addition, Chen Yegang said that Dongshuo Environmental Protection is exploring the use of some highly efficient degrading fertilizers to remove membrane pollution, such as algae pollution. Dongshuo Environmental Protection has introduced yeast-type enzyme preparations from the United States, one to degrade algae and one to control enzymes. Looking specifically at the situation of coking enterprises, it can be reduced to 0.05. Chen Yegang introduced that the current landmark projects of EMBR technology are the pure water project of the Japan Pavilion of the Expo, the landscape water project of the Guangzhou Asian Games (100,000 tons / day), the landscape water regeneration project of Shanghai Disneyland, the recycling and reuse of coking wastewater in Wuxi, and the Shanghai coking plant Wastewater regeneration and reuse The wastewater of Panzhihua Steel Plant is being reused, coal chemical wastewater is recycled, and petrochemical wastewater is recycled.
