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Improving the Biodegradability of Tannery Sewage by AOPs
Author(s): 
Pages: 129-131,149
Year: Issue:  9
Journal: ENVIRONMENTAL SCIENCE AND MANAGEMENT

Keyword:  皮革废水COD高级氧化技术生化法;
Abstract: 皮革废水中含大量难降解有机物,导致常规好氧生化处理速率低、效果差.实验考察了在Us(超声波)、UV(紫外光)、US/Fenton、UV/Fenton等高级氧化技术强化作用下的生化处理效果,结果表明,在相同水质和实验条件下,废水经Us、UV处理30min后可使后续生化反应速率显著提高,分别反应8h、24h后的COD去除率即可达到直接经微生物处理48h后达到的48%,但延长反应时间至48h对COD去除率没有明显提高;Fenton试剂强化US、UV的处理效果要高于单独Us、UV工艺,经30min预处理,随后在微生物作用下分别反应4h和8h即可达到45%和51%的COD去除率,同时延长反应时间也能使最终COD去除率明显提高,反应48h后,COD去除率可分别提高至64%和72%.
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