Sulfamethoxazole contamination of a deep phreatic aquifer
Sulfamethoxazole contamination of a deep phreatic aquifer
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DOI：
10.1016/j.scitotenv.2009.03.032
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发表时间：
2009-07-01
影响因子：
9.8
通讯作者：
Ronen, Daniel
中科院分区：
文献类型：
--
作者：
Avisar, Dror;Lester, Yaal;Ronen, Daniel
地下水样本取自一个深埋含水层（不饱和带深度达28米）的地下水位区域，该地下水位位于污水排放和污泥渗透设施下游（1300米）约50年的污水灌溉土地和一个相对较深的抽水井（109米），该井在2007年之前用作饮用水源。二级废水中磺胺甲恶唑（SMX）浓度在90 ~ 150 ng/L之间，采用固相萃取法提取SMX，并采用HPLC-MS/MS进行分析。地下水位区检测到SMX，最高浓度为37 ng/L。在两口监测井中，经过一次非饱和带输运期约为16年。在抽水井中检测到的SMX最高浓度为20 ng/L，这些结果对废水处理策略提出了质疑，包括用废水灌溉供应饮用水的含水层补给区的适用性。(C) 2009 Elsevier B.V.版权所有
Groundwater samples were obtained from the water table region of a phreatic aquifer (unsaturated zone depth up to 28 m) under land irrigated with wastewater effluents for about 5 decades and a relatively deep pumping well (109 m), used as a drinking water source till 2007, located downstream (1300 m) of wastewater effluent and sludge infiltration facilities. Sulfamethoxazole (SMX) concentrations in secondary effluents varied between 90 and 150 ng/L SMX was extracted using SPE and was analyzed by HPLC-MS/MS. SMX (maximum concentration of 37 ng/L) was detected in the water table region. in two monitoring wells, after an unsaturated zone transport period of about 16 years. The maximum SMX concentration detected in the pumping well was of 20 ng/L These results question wastewater effluent disposal strategies including the suitability of irrigation with effluents on the replenishment area of an aquifer supplying drinking water. (C) 2009 Elsevier B.V. All rights reserved.