發(fā)布時間：2018-05-10 23:13

  本文選題：氨氮 + 硝化菌　； 參考：《環(huán)境污染與防治》2016年11期

【摘要】：為探討氨氮微污染地表水的生物強化脫氮技術,從地表水中篩選分離得到一種硝化菌優(yōu)勢菌株,對其進行16SrDNA鑒定,考察了不同固定化方法條件下其對氨氮處理的效果。結果表明,從氨氮微污染地表水中篩選分離的硝化菌優(yōu)勢菌株為芽孢桿菌屬(Bacillus sp.),采用聚乙烯醇(PVA)材料能夠有效實現(xiàn)硝化菌株的固定化。PVA固定化硝化菌顆粒對微污染地表水中氨氮的去除率達87.2%,處理后水中殘余氨氮濃度低于《地表水環(huán)境質量標準》(GB 3838—2002)Ⅱ類水體氨氮限值。
[Abstract]:In order to study the biological enhanced denitrification technology of surface water polluted by ammonia nitrogen, a dominant strain of nitrifying bacteria was isolated from surface water and identified by 16SrDNA. The effect of different immobilization methods on ammonia nitrogen treatment was investigated. The results show that The dominant strain of nitrifying bacteria isolated from surface water contaminated with ammonia nitrogen is Bacillus sp. The use of polyvinyl alcohol (PVA) material can effectively realize the immobilization of nitrifying bacteria strain. PVA immobilized nitrifying bacteria particles in micro-polluted surface water. The removal rate of ammonia nitrogen reached 87.2%, and the residual ammonia nitrogen concentration in the treated water was lower than the limit value of ammonia nitrogen in class 鈪，

本文編號：1871339