焦化厂高浓度氨氮废水的治理研究 -

焦化废水成分复杂,氨氮浓度高,生物难降解有机物含量高,水质、水量变化较大,而传统的活性污泥法生物处理工艺对COD和NH3-N的去除效果不够理想,难以使出水达到排放标准,给环境和人体带来危害。介绍了焦化废水经生化处理和深度处理的过程。 Components were complex in coke plant wastewater,in which contains high concentration of ammonia nitrogen and a number of toxic and refractory organic compounds,and great changes happened usually to water quality and water flow.Most of the original treatment processes were conventional activated sludge method,though which the COD and ammonia nitrogen removal were not favorable and the effluent concentration couldn't attain the wastewater drainage level,which brought severe harm to our environment and human body.This paper introduces the process that bio-chemical technique and advanced treatment process