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化工学报  2015 

废水中硫化物、硝酸盐和氨氮生物同步去除及其机理

DOI: 10.11949/j.issn.0438-1157.20141091, PP. 779-784

Keywords: 废水,硫化物,环境,厌氧,厌氧氨氧化,硫氮同步脱除,单质硫

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Abstract:

在HRT为12h,温度为30℃±2℃,进水pH为7.5,进水硫化物、硝酸盐氮和氨氮浓度分别为50~90mgS·L-1,22~35mgN·L-1和22~35mgN·L-1条件下,能够实现氨氮、硝酸盐氮和硫化物3类污染物的同步去除,去除率分别达到97.3%、92.8%和99%以上,而且去除的硫化物主要以单质硫形式存在,单质硫理论转化率达89%以上。间歇实验结果表明,S2-的存在能够促进NO3--N、NH4+-N的同步去除。研究结果为含硫含氮废水的生物处理技术的发展提供了新思路。

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