环保酵素对生活污水中氨氮和总氮的净化效果探究

Study on Purification Effect of Environmental Enzymes on Ammonia Nitrogen and Total Nitrogen in Domestic Sewage

摘要: 以自制环保酵素对生活污水氨氮和总氮的净化为探究对象，通过为期14 d的对比实验，设计4组不同稀释浓度的环保酵素液，分别与6 L生活污水混合反应处理，探究环保酵素对生活污水中氨氮、总氮的去除效果。实验结果表明，环保酵素有利于去除生活污水中氨氮和总氮，浓度梯度在1:1000的环保酵素在第9 d对6 L生活污水中氨氮和总氮的处理效果最佳，其中总氮去除效果接近城镇污水处理厂污染物排放标准(GB 18918-2002)的一级B标准，氨氮去除效果达到二级B标准。

Abstract: The purification of ammonia nitrogen and total nitrogen in domestic sewage by homemade envi-ronmental enzyme was studied through a 14 d comparative experiment. Four groups of environ-mental enzymes with different dilution concentrations were designed and mixed with 6 L domestic sewage to study the removal effect of environmental enzymes on ammonia nitrogen and total nitrogen in domestic sewage. The experimental results show that the environmental enzyme is beneficial to remove ammonia nitrogen and total nitrogen in domestic sewage, and the environ-mental enzyme with a concentration gradient of 1:1000 has the best effect on ammonia nitrogen and total nitrogen in 6 L domestic sewage on the 9th day. The removal effect of total nitrogen is close to the first-grade B standard of pollutant discharge standard of urban sewage treatment plant (GB 18918-2002), and the removal effect of ammonia nitrogen reaches the second-grade B standard.