生物论文.doc

应用 EM 技术处理生活污水的研究摘要: 对有效微生物群( EM )对生活污水中化学需氧量( CODcr ) 、氨氮、总磷三类常见污染物的去除效果进行了试验研究和分析. 结果表明:EM CODcr 、氨氮的去除均应在好样条件下进行,当 EM 接种量( V EM :V DS )在 1× 10-3 以下时,对 CODcr 的去除促进作用明显, 最大增幅达 % ;当接种量达到 5/1000 以上时, EM 可显著提高氨氮和总磷的去除率. EM 接种量是影响污染物去除的主要因素. 关键词: 有效微生物群; 生活污水; 化学需氧量; 氨氮; 总磷 Se wage Disposal with Effective anisms( EM ) Abstract :A stud y was made on the do2mestic sewagdisposal with the a ctivated sludge process by adding effective anisms EM to remove the chemical oxygen demand COD cr, the ammonia nitrogen and the total phosphorus. The results showed that EM is effective in helping remove the three main kinds of pollutants. When the inoculation of EM (V EM :V DS )w as lower than 1× 10-3 the removal effect s of COD wereobvious and the reduction rateof it reached as high as %. When the inoculation of EM (V EM :V DS)w as haigher than 5/1000. EM can obviously enhance the ammonia nitrogen and the total phosphorus elimination rate .A derived conclusion is that the quantity of COD cr inoculation a re the keyfactorsfor the removal of pollutants. Key words: effective anisms; domestic sewage DS ; chemicaoxygen demand ( CODCr ) ammonia nit rogen(NH 4 +--N) T otal phosphoru s(TP) 引言:有效微生物群 EM (Effective anisms) 是日本琉球大学比嘉照夫教授等人经过多年潜心研究,于 20 世纪 80 年代开发出的高效生物技术产品, 是由光合细菌、酵母菌、固氮菌、纤维素分解菌、乳酸菌和放线菌等为主的 10 个属 80 多种有益微生物复合培养而成的一种新型微生物活菌剂. 1991 年江苏省国际文化交流中心率先引进 EM 技术, 通过南京农业大学