Wastewater treatment as a key project for the development of environmental protection industries

Abstract: At the "2011 China Environmental Protection Industry Development and Investment and Financing Exchange Conference" held on the 7th, the first major area of ​​China's environmental protection development in the "Twelfth Five-Year Plan" was sewage treatment. Including nitrogen and phosphorus removal, upgrading of existing sewage treatment plants, construction of sewage treatment plants in small and medium cities, and industrial wastewater treatment.

According to the China Environmental Protection Industry Association, during the “12th Five-Year Plan” period, the state will continue to promote the reduction of chemical oxygen demand (COD) and sulfur dioxide (SO2) pollution while adding new ammonia nitrogen (NH3-N) and nitrogen oxides. (NOx) as a constraint indicator. Specifically, by 2015, chemical oxygen demand (COD) and sulfur dioxide (SO2) were respectively reduced by 8% on the basis of 2010, and the bases of ammonia nitrogen (NH3-N) and nitrogen oxides (NOx) in 2010 were Separately cut 10%.

At the same time, heavy metals, soil pollution, POPS (persistent organic pollutants), hazardous wastes, hazardous chemicals, rural non-point source pollution prevention, VOCs pollution prevention and control, and nuclear pollution prevention and control are key areas for pollution prevention and control.

At the “2011 China Environmental Protection Industry Development and Investment and Financing Exchange Conference”, Yu Shufan, deputy director of the Ministry of Science and Technology Standards Department of the Ministry of Environmental Protection, stated that the “Twelfth Five-Year” China’s first major environmental protection development area is sewage treatment. Including nitrogen and phosphorus removal, upgrading of existing sewage treatment plants, construction of sewage treatment plants in small and medium cities, and industrial wastewater treatment.

Liu Hongwu, deputy director of Planning and Finance Department of the Ministry of Environmental Protection, stated that during the 12th Five-Year Plan period, the state will allocate and invest in environmental protection industries from six aspects. One of the major aspects is the total reduction of pollutants, including ammonia, which is the major pollutant pollutant. Emission reduction.

It is understood that during the “12th Five-Year Plan” period, the state will strengthen control over the discharge of pollutants such as ammonia nitrogen and total nitrogen, total phosphorus, and heavy metals on the basis of consolidating the emission reduction of chemical oxygen demand. During the “Twelfth Five-Year Plan” period, the prevention and control of water pollution shall focus on the upgrading of urban domestic sewage, the treatment of difficult-to-treat industrial wastewater, and the reuse of wastewater, and at the same time strengthen the prevention of pollution in rural domestic sewage and rivers and lakes.

Focus on the development of wastewater treatment plant upgrading and upgrading technology (membrane technology, nitrogen and phosphorus removal technology, energy efficient aeration technology); high concentration, high salt, refractory industrial wastewater treatment technology; ammonia wastewater in key industries (such as nitrogen fertilizer, coking, etc. ) Treatment technology; rural domestic wastewater and livestock and poultry breeding wastewater treatment technology; landscape water eutrophication treatment technology; landfill leachate treatment technology; sewage treatment plant sludge treatment technology.