| 重金属离子对A~2/O工艺脱氮效能的毒性影响分析 |
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| 引用本文： | 熊仁久,曹国华,范举红,李奇云,钱志军,陈晓萍.重金属离子对A~2/O工艺脱氮效能的毒性影响分析[J].水处理技术,2012,38(9):103-106. |
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| 作者姓名： | 熊仁久 曹国华 范举红 李奇云 钱志军 陈晓萍 |
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| 作者单位： | 1. 桐乡市水务集团有限公司,浙江桐乡,314500
2. 浙江长三角清华研究院环境研究所,浙江嘉兴,314006 |
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| 摘 要： | 以浙江某城市污水处理厂重金属离子引起出水水质恶化为研究对象,分析了城市污水厂处理厂进水、出水、活性污泥中Mn2+、Ni2+、Cr6+、Cu2+、Zn2+等重金属离子的含量。结果表明,进水、出水、活性污泥(干泥)中Mn2+含量分别为0.476 5～8.248 7 mg/L、0.472 7～4.630 5 mg/L、1 582.2 mg/kg干泥,Mn2+是影响该污水处理厂水质净化效果主要原因。通过采取控制进水水质、加大活性污泥排放量、接种污泥等措施,最后恢复了该厂的正常运行。
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| 关 键 词： | 重金属离子 A2/O 毒性影响 硝化细菌 接种污泥 |
THE EFFECT OF HEAVY METAL ION ON A2/O PROCESS DENITRIFICATION EFFICIENCY |
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| Xiong Renjiu
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Cao Guohua
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Fan Juhong
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Li Qiyun
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Qian Zhijun
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Chen Xiaoping.THE EFFECT OF HEAVY METAL ION ON A2/O PROCESS DENITRIFICATION EFFICIENCY[J].Technology of Water Treatment,2012,38(9):103-106. |
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| Authors: | Xiong Renjiu Cao Guohua Fan Juhong Li Qiyun Qian Zhijun Chen Xiaoping |
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| Affiliation: | 1(1.Tongxiang Water Group Co.Ltd.,Tongxiang 314500,China;2.Yangtze Delta Region Institute of Tsinghua University,Jiaxing 314006,China) |
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| Abstract: | his paper dealt with deterioration of water quality by heavy metals in a urban sewage treatment plant and analyzed of Mn2+Ni2+,Cr6+,Cu2+,Zn2+ and other heavy metal ion content in the influent,effluent and activated sludge.The results showed that the influent,effluent and activated sludge concentration of Mn2+were 0.476 5～8.248 7 mg/L,0.472 7～4.630 5 mg/L,1 582.2 mg/kg dry soil,which was the main impact of the sewage treatment plant water purification.The wastewater treatment plant resumed normal operations by controlling the water quality,increase the emissions of activated sludge inoculated with sludge and other measures. |
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| Keywords: | heavy metals A2/O toxic effects nitrifying bacteria inoculated sludge |
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