Paper and paper wastewater reuse wastewater _ provided by the Environmental Protection Engineering Co., Ltd. Guangzhou Fu students _ rich with students (certified merchants). Road Zhiyuan, tempering forward. Guangzhou Fu students Environmental Engineering Co., Ltd. (www.fsyhb.com) strive to be and you win, symbiosis, strategic partners before the trip, the more determined to become the most influential environmental monitoring equipment company, and you leap together to succeed ! papermaking wastewater causing serious pollution to the environment, due to its chemical composition is quite complex, and difficult to biodegradation, and therefore it is quite difficult to deal with, so to force the wastewater discharge requirements must be strict standards before they can be discharged. Water treatment is a temporary method of dead wood and paper wastewater treatment, so to reduce pollution have to start from the head to reduce the amount of pollution sources. The method can be used to replace the original hair more polluting process, or the use of less polluting technology to replace outdated technology to radically reduce pollution. Sources of contaminants in pulp and paper mills, the sources of pollutants in wastewater are as follows: 1, used for wood processing and wood peeling and washing water (for non-wood fibers, grass is a wash water, etc.); 2, cooking and the evaporator condensate; 3, from screening, purification and concentration of Whitewater; 4, bleaching stage washing machine water filtration; 5, 6 paper machine white water, leaks from plant fiber and liquids throughout. Hazards of a papermaking wastewater, waste pulp cooking section boiled pulp black liquor and soda acid method boiled pulp red liquid. Alkaline pulping liquor emitted mainly degradation products of wood solidarity and carbohydrates. Lignin degradation products have the smell even with a bad smell; the degradation products of carbohydrates will cause waste of BOD values ??increased. Because of the large alkaline black liquor, dark in color, smell heavy, made of foam, and consume a lot of oxygen, water body in the water a serious threat to the environment and human harm. Because of its complex composition, difficult to handle, and sometimes consume oxygen in the water, so that the creatures can not normally survive in water, so that further deterioration of the environment. Red liquid acid pulping emissions, also mostly lignin degradation products and carbohydrates. 2, chlorine bleach liquid waste are now widely used chlorine bleaching technology. Hypochlorite bleach generated when the chloroform and other more organic chlorides, chlorinated phenols which is the main component, but there are more than 10 kinds of which are highly toxic substances. If this is not treated wastewater discharge standards or would not cause serious harm to the environment. 3, papermaking wastewater on the overall environmental harm caused by papermaking wastewater serious pollution to the environment papermaking wastewater reuse, such as poorly biodegradable organic contaminants will remain in the environment extremely long time papermaking wastewater process, destroy the environment, reduce environmental itself resilience. Sewage discharged into water bodies high chroma, so water pollution, and reduces the self-purification capacity of water bodies, but also the water harsh environment of living organisms, or worse still is the accumulation of toxic substances in the body and enter the body through the food chain, resulting in produce a variety of unknown diseases, the ultimate victims of environmental damage or human himself. Wastewater will also contain the smell and color of the human senses cause some harm, so that the deterioration of the human living environment, on human health caused irreversible damage.