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OALib Journal期刊
ISSN: 2333-9721
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一株假单胞菌wsh1001的脱氮特性
DOI: 10.3724/SP.J.1145.2012.00768, PP. 768-774
Keywords: 生物脱氮,pseudomonassp.wsh1001,氮去除率,微生物制剂,污水处理
Abstract:
研究了假单胞菌wsh1001（pseudomonassp.wsh1001）对氨氮及硝态氮去除性能的影响因素以及wsh1001在实际污水处理中的应用情况，并将其与市售硝化菌制剂的脱氮性能进行了比较.结果表明：菌株前培养方式对后续的氮去除性能影响较大，葡萄糖或柠檬酸钠是最适碳源；在20~35℃的范围内，温度对氨氮及硝态氮的去除率没有明显影响；溶氧浓度对氨氮及硝态氮的去除效率影响很大；金属离子cu2+、co2+和zn2+极大地抑制了该菌株对氨氮及硝态氮的去除能力；菌株wsh1001在6h内对70mgl-1的氨氮去除率高达99.64%，总氮去除率达94.94%，在8h内对50mgl-1的硝态氮去除率达到了87.69%，说明该菌株同时具备硝化和反硝化的能力；当菌株wsh1001应用于实际污水（初始氨氮和cod浓度分别为44和113mgl-1）、并额外添加3gl-1的丁二酸钠作为外加碳源时，氨氮去除率在6h时达到99.23%，较其它市售硝化菌制剂脱氮性能高.该研究表明假单胞菌wsh1001在实际污水的处理上具有较好的应用潜能.图8参27
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