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摘要
反渗透浓水具有含盐量高、有机污染物组成复杂的特点,其处理问题受到了广泛关注。在浓水处理与回用过程中,有机污染物特性对处理工艺的效能影响很大。基于此,分析了浓水中有机污染物的组成特性,归纳总结了腐殖质、微生物代谢产物和新兴污染物三大主要成分的特点与危害;介绍了混凝沉淀法、活性炭吸附法、高级氧化法和生物法等常用的浓水有机物去除方法,对比分析了各种方法的优势及存在的问题,并对处理方法的发展提出了建议,以期为国内浓水安全处理与回用提供参考。
Abstract
Reverse osmosis concentrate with features of high salinity and complex organic pollutants composition has attracted extensive attention.As reported, the characteristics of organic pollutants have a significant impact on the treatment efficiency of reverse osmosis concentrate.The composition characteristics of organic pollutants in the concentrate are expounded.The characteristics and hazards of three main components in the organic pollutants are summarized, including humus, microbial metabolites and emerging pollutants.Common methods for removing organic pollutants from reverse osmosis concentrate are introduced, such as coagulation-sedimentation, activated carbon adsorption, advanced oxidation and biological methods.The advantages and drawbacks of each method are systematically analyzed.In addition, the development trend of treatment technologies is also proposed to provide guidelines for safe treatment and reuse of reverse osmosis concentrate in the future.
关键词
反渗透浓水
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生物法
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高级氧化
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活性炭吸附
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混凝沉淀
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有机污染物
Key words
reverse osmosis concentrate
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biological method
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advanced oxidation
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adsorption by activated carbon
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coagulation sedimentation
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organic pollutants
反渗透浓水中有机物的组成特性及去除方法研究[J].
现代化工, 2021, 41(S1): 114-119 DOI:10.16606/j.cnki.issn0253-4320.2021.S.023