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Abstract:
以低ρCOD/ρTN生活污水为处理对象,在连续和分段2种进水方式下分析了交替缺氧/好氧循环式活性污泥法工艺的脱氮性能及曝气需求量,并研究了分段进水方式下pH、ρDO和氧化还原电位(oxidation reduction potential,ORP)的变化规律.结果表明,连续进水方式下,系统TN平均去除率75.1%,系统因长期低负荷运行而发生污泥膨胀,污泥容积指数(sludge volume index,SVI)平均值为229 mL/g,同时,曝气量升至0.56 m3/h时,才能使NH4+-N去除率大于99%;采用分段进水方式时,系统TN平均去除率可提高至81.5%,污泥沉降性能良好,并且曝气量...
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北京工业大学学报
Year: 2012
Issue: 03
Volume: 38
Page: 443-449
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