Elimination of organophosphate ester flame retardants and plasticizers in drinking water purification
Elimination of organophosphate ester flame retardants and plasticizers in drinking water purification
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DOI：
10.1016/j.watres.2005.11.022
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发表时间：
2006-02-01
期刊：
影响因子：
12.8
通讯作者：
Bester, K
中科院分区：
文献类型：
--
作者：
Andresen, J;Bester, K
有机磷酸酯阻燃剂和增塑剂如磷酸三-（2-氯-，1-甲基乙基）酯（TCPP）、磷酸三-（2-氯-，1-氯甲基-乙基）酯（TCPP）、磷酸三-（2-氯乙基）酯（TCEP）、磷酸三丁酯、磷酸三苯酯（TPP）、磷酸乙基己基二苯酯（EHDPP）和磷酸三-（丁氧基乙基）酯（TBEP）已经在用于饮用水净化的不同工艺中进行了研究。这些不同处理工艺的消除效率，例如，在鲁尔河流域的三个水厂中，研究了生物活性地下缓慢通道、土壤通道和臭氧化或多层和活性炭过滤等技术处理工艺。在未经处理的地表水中，氯化有机磷的浓度范围为50-150 ng L-1 TCPP，10-130 ng L-1 TCEP和10-40 ng L-1 TDCP。根据天气和水流，非氯化烷基磷酸盐的量处于相同的数量级（磷酸三丁酯为40 ng L-1，TBEP为170 ng L-1，TPP为10 ng L-1）。EHDPP的检测范围为1 ng L-1。在饮用水净化过程中，在本研究中的所有水厂，选定的物质的浓度低于各自的定量限（0.3-3纳克L-1）。虽然活性炭过滤以及延长通过土壤的时间（10-15天的停留时间）可有效消除所有选定的化合物，但臭氧化和多层过滤无助于消除氯化化合物。地下缓慢通道与土壤通道相结合对卤代化合物的消除效果似乎取决于水力停留时间。(c)2005爱思唯尔有限公司保留所有权利。
Organophosphate ester flame retardants and plasticizers like tris-(2-chloro-, 1-methylethyl)phosphate (TCPP), tris-(2-chloro-, 1-chloromethyl-ethyl)phosphate (TCPP), tris-(2chloroethyl)phosphate (TCEP), tributylphosphates, triphenylphosphate (TPP), ethylhexyldiphenylphosphate (EHDPP) and tris-(butoxyethyl)phosphate (TBEP) have been studied in diverse processes for drinking water purification. The elimination efficiency of these different treatment processes, e.g., biological active slow underground passage, soil passage and technical treatment processes such as ozonization or multilayer and activated carbon filtration have been studied in three waterworks in the catchment area of the river Ruhr. In the untreated surface water the concentrations of the chlorinated organophosphates ranged 50-150 ng L-1 TCPP, 10-130 ng L-1 TCEP and 10-40 ng L-1 TDCP. The amounts of the non-chlorinated alkylphosphates were in the same order of magnitude (40 ng L-1 of the tributylphosphates, 170 ng L-1 of TBEP and 10 ng L-1 TPP) depending on weather and water flow. EHDPP was detected in the range of 1 ng L-1. After the drinking water purification process in all waterworks in this study, the concentrations of the selected substances were below the respective limit of quantification (0.3-3 ng L-1). While activated carbon filtration as well as extended passage through soil (10-15 days residence time) were effective in eliminating all selected compounds, ozonization and multilayer filtration did not contribute to the elimination of the chlorinated compounds. The elimination effect of slow underground passage combined with soil passage concerning the halogenated compounds seemed to depend on the hydraulic residence time. (c) 2005 Elsevier Ltd. All rights reserved.