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处理避孕药废水优势菌的分离鉴定及强化作用

Keywords: 分离技术,生物降解,废水处理

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Abstract:

针对传统污水处理方法难以有效处理避孕药废水的问题,从避孕药生产废水生化处理站的活性污泥中分离得到10株能降解避孕药废水的菌株.经过对其形态特征及16SrDNA序列分析,该10株菌分别为绿脓杆菌、副短短芽孢杆菌、鲁氏不动杆菌、鲍氏不动杆菌、短小短芽孢杆菌等5个菌种.研究表明,投加高效降解菌能有效地降低污泥浓度和缩短降解时间,在ρ_(MLSS)为2000mg/L条件下,HRT4h内θ_(COD)达到87.5%,且NH_3-N和TIN能在较低的污泥浓度下达到排放标准,从而解决了普通活性污泥处理此类废水时NH_3-N不能达标排放的问题.投加优势菌的污泥在pH值和温度变化的过程中对污染物的去除能力好于对照污泥.

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