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

Q3 Environmental Science

Revista Ambiente e Agua Pub Date : 2012-12-23 DOI:10.4136/AMBI-AGUA.926

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.

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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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