UV/H2O2 process performance improvement by ultrafiltration and physicochemical clarification systems for industrial effluent pretreatment

Q3 Environmental Science
J. C. Mierzwa, E. L. Subtil, I. Hespanhol
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引用次数: 2

Abstract

The present study evaluated the removal of TOC from an effluent with high organic load resulted from the treatment of oil-water emulsion by thermal process. Hollow Fiber Ultrafiltration membrane (HF-UF) and physicochemical clarification process were used as pretreatment options to assess the influence of feed effluent quality on the UV/H2O2 oxidation process. Results for TOC removals showed HF-UF and physicochemical clarification processes can significantly improve the efficiency of UV/H2O2 oxidation process, when compared with the direct effluent oxidation. Reaction time for obtaining a TOC removal higher than 90% was reduced to approximately half of the time needed when no pretreatment was applied. Considering both pretreatment processes it was not possible to notice any significant difference on the UV/H2O2 oxidation process performance. However, the complexity of physicochemical process due to the use of three different chemicals and sludge production made the HF-UF process the best pretreatment alternative, without increasing the Total Dissolved Solids of the effluent, a very important issue when water reuse is considered.
超滤和理化澄清系统对工业废水预处理中UV/H2O2工艺性能的改善
本研究评估了热法处理油水乳化液产生的高有机负荷出水中TOC的去除效果。采用中空纤维超滤膜(HF-UF)和理化澄清工艺作为预处理方案,考察了出水水质对UV/H2O2氧化工艺的影响。对TOC的去除结果表明,与直接出水氧化相比,HF-UF和理化澄清工艺可显著提高UV/H2O2氧化工艺的效率。获得TOC去除率高于90%的反应时间减少到没有预处理时所需时间的大约一半。考虑到这两种预处理工艺,不可能在UV/H2O2氧化工艺性能上发现任何显着差异。然而,由于使用三种不同的化学品和产生污泥,物理化学过程的复杂性使HF-UF工艺成为最佳预处理方案,而不会增加出水的总溶解固体,这是考虑水回用时非常重要的问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Revista Ambiente e Agua
Revista Ambiente e Agua Environmental Science-Environmental Science (all)
CiteScore
1.80
自引率
0.00%
发文量
48
审稿时长
22 weeks
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