Comparison of seven kinds of drinking water treatment processes to enhance organic material removal: a pilot test.
Comparison of seven kinds of drinking water treatment processes to enhance organic material removal: a pilot test.
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DOI：
10.1016/j.scitotenv.2007.04.012
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发表时间：
2007-08
期刊：
影响因子：
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通讯作者：
Chao Chen;Xiao-jian Zhang;Wen-jie He;Wei Lu;Hong-da Han
中科院分区：
文献类型：
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作者：
Chao Chen;Xiao-jian Zhang;Wen-jie He;Wei Lu;Hong-da Han
水源水中的有机物在水净化领域，特别是常规处理中提出了许多挑战。进行了为期两年的中试试验，比较了各种水处理方法，以提高有机物的去除率。试验工艺组合包括常规工艺、常规+深度处理、预氧化+常规工艺、预氧化+常规+深度处理。采用CODMn、TOC、UV254、AOC、BDOC、THMs、HAAs等综合指标及其形成势对各处理的效率进行了评价。结果表明，常规工艺与O3-BAC相结合，实现了有机物的整体去除，达到了要求标准。它是本次调查中测试的处理中国污染水源水的最佳处理方法。此外，在消毒前应注意有机去除，以控制DBP的形成，保持生物稳定性。本文还报告了各单元工艺的效率范围，以计算不同工艺组合的总效率，以帮助选择合适的水处理工艺。
Organic matter in source water has presented many challenges in the field of water purification, especially for conventional treatment. A two-year-long pilot test comparing water treatment processes was conducted to enhance organic matter removal. The tested process combinations included the conventional process, conventional plus advanced treatment, pre-oxidation plus conventional process and pre-oxidation plus conventional plus advanced treatment. The efficiency of each kind of process was assayed with the comprehensive indices of CODMn, TOC, UV254, AOC, BDOC, THMs, and HAAs and their formation potential. The results showed that the combination of the conventional process and O3-BAC provides integrated removal of organic matter and meets the required standards. It is the best performing treatment tested in this investigation for treating polluted source water in China. Moreover, much attention should be paid to organic removal before disinfection to control DBP formation and preserve biostability. This paper also reports the range of efficiency of each unit process to calculate the total efficiency of different process combinations in order to help choose the appropriate water treatment process.