耐盐菌的筛选鉴定及其降解性能分析

Environmental Science and Technology(2022)

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Abstract
为提升高盐废水生物处理效果,从制药厂二沉池中取活性污泥,采用逐步提高盐浓度的方法培养驯化出耐盐菌种.经筛选分离得到一株高耐盐菌M02,该菌株为Stenotrophomonas pavanii(寡养单胞菌)的一株潜在新菌,保藏号为CGMCC No.22898.单因素实验显示最适培养条件:pH值为7~8,温度为30℃,接种量为7%,盐的质量分数为1%~4%.菌株M02在实际高盐废水应用中,72 h COD去除率可达93.8%.该方法去除率明显高于普通活性污泥法(59.9%),具有实际应用价值.
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