Analysis and treatment of beer wastewater Why choose cationic polyacrylamide? Analysis and treatment of beer wastewater Why choose cationic polyacrylamide? Large amount of water used in the beer production process, especially brewing, canning process, due to the use of large amounts of fresh water, resulting in a large amount of wastewater. Different production processes produce different amounts of waste water. The main pollutants in brewery wastewater are alkaline detergent, pulp, dye, paste, residual alcohol and other impurities. Characterized by high alkalinity, high temperature, high concentrations of organic matter (CODCr content can reach 1100mg / L or more) biochemical treatment more difficult. Characterized by high alkalinity, high temperature, high concentration of organic matter biochemical treatment more difficult. Beer wastewater organic components, wastewater mainly to the negative charge. The cationic polyacrylamide used in beer wastewater treatment, because of the cationic functional groups carried by it, can react with the negative charges in beer wastewater to form flocs to clarify, remove turbidity and decolorize. A large number of experiments have proved that the brewery used Flocculants are generally high molecular weight strong cationic polyacrylamide, the molecular weight of more than 9 million, more than 30 ions is appropriate, the treatment effect is remarkable, COD removal rate of 90%, less dosage, lower cost. Subsequent sludge dewatering mud cake moisture content is low. Beer wastewater treatment process options must be adapted to local conditions, beware of immigrants. Various processes should be determined, the factory drainage water quality, water quantity, drainage rules and characteristics should be fully investigated, if necessary, should be sampled and confirmed; should review the construction site provided by the factory terrain conditions and size of the area; examine the factory can afford a one-time investment and Operating costs; inspection of the factory management level and the quality of workers and to determine conditions outside the plant and hydropower capacity expansion conditions suitable for the construction of the sewage farm in the region and long-term compliance operation of the program comparison. Simple selection of applications, reliable operation, standard and stable, saving energy consumption, investment economy is the most important principle of the process. This information is purified by the filter source http://www.gyzhenyu.com finishing release, please indicate the way for transfer!