Wood pulp and paper waste cooking pollution, either alkaline or acid pulping, papermaking in the international wastewater treatment equipment, technologies are mature. China's paper raw materials, wood products account for a small proportion of the raw material, in the self-pulping, pulp for less than 10%. Domestic wood as raw material chemical pulp mills have been supporting the basic Recovery System, Recovery rate of 90%. Although the recovery is still lower than the international advanced level, but running well. The middle of a small amount of production waste paper pulp bleaching wastewater engineering, the use of conventional CEH bleaching three sections, although they have not solved the problem of dioxin contamination, but after a two-stage process can also discharge standards. Fu Bin State Yizhang Qing Shun students papermaking wastewater treatment works firecracker paper industry wastewater treatment technologies - biological contact oxidation biological contact oxidation is attached to the wastewater with microbial membrane packing full contact, the use of microbial metabolism of organic matter in wastewater nitrogen, phosphorus and other pollutants to achieve the decomposition and transformation, so that the waste water is purified process. Biofilm attached to the filler layer is typically composed of milk, aerobic and anaerobic layer layer. When waste water and covered with a biofilm packing contact, adsorption and biological mucosa infiltration of wastewater pollutants into the film: low molecular weight organics in the mucous layer does not reach the outside world already decomposed microbes; polymers and refractory organics attached On Bo film, through microbial extracellular enzymes break down into small molecules papermaking wastewater discharge, after entering the microbial cells. Biological contact oxidation compared with activated sludge, operational simplicity, strong impact. The middle of the main components of the wastewater COD lignin dissolved in water, BOD5 / COD value of about 3.0, is more difficult to biodegrade wastewater. Bleaching using biofilm wastewater, BOD5 removal rate over 70%, while only about 30% COD removal, effluent quality is difficult to meet emission standards. May, after contact oxidation pond in chemical coagulation and sedimentation of water, the water can be treated to meet emission standards. Papermaking wastewater treatment processes, wastewater, rich students provided by the Environmental Protection Engineering Co., Ltd. Guangzhou Fu students. Guangzhou Fu students Environmental Engineering Co., Ltd. (www.fsyhb.com) in the field of environmental monitoring equipment devoted boundless enthusiasm and passion, rich students has been customer-centric, the concept of creating value for customers, quality, service to win market, and sincerely hope to cooperate with the community to create a successful, create brilliant. Related businesses welcomed the inquiry, Contact: Hu large reed.