Potential for 17β-Estradiol and Estrone Degradation in a Recharge Aquifer System
Potential for 17β-Estradiol and Estrone Degradation in a Recharge Aquifer System
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DOI：
10.1061/(asce)0733-9372(2007)133:8(819
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发表时间：
2007-08
影响因子：
2.2
通讯作者：
T. H. Lim;K. Gin;S. Chow;Yue Chen;M. Reinhard;J. Tay
中科院分区：
文献类型：
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作者：
T. H. Lim;K. Gin;S. Chow;Yue Chen;M. Reinhard;J. Tay
采用实验室规模的微生态系统研究了17 β -雌二醇（E2）和雌酮（E1）在污水回灌含水层系统中的降解潜力。生物转化的微生物存在于含水层材料被认为是主要的模式去除有机污染物的微观世界。此外，超滤二级出水，模拟含水层的补给，并没有显着改变的行为E2和E1在含水层的缩影。一个显着的差异，在E2的去除率的缩影，收到E2作为一个浓缩的股票在甲醇中，而不是直接溶解到地下水中的E2表明，甲醇的存在下，可以改变生物降解动力学的有机污染物的利益。土著甲醇降解菌对甲醇的快速利用，作为一种替代碳底物，导致氧气的快速消耗，因此，缺氧条件的发展…
The potential for degradation of two important endocrine disrupting chemicals, 17 β -estradiol (E2) and estrone (E1) in a wastewater effluent recharged aquifer system was assessed using lab scale microcosms. Biotransformation by microorganisms present in the aquifer material was found to be the major mode of removal for both organic contaminants in the microcosms. The addition of ultrafiltered secondary effluent, simulating recharge of aquifer, did not significantly alter the behavior of both E2 and E1 in the aquifer microcosms. A significant difference in E2 removal rates in microcosms that received E2 as a concentrated stock in methanol as opposed to direct dissolution of E2 into groundwater shows that the presence of methanol could alter the biodegradation kinetics of the organic pollutant of interest. The rapid utilization of methanol by indigenous methanol degraders, which was present as an alternative carbon substrate, caused rapid depletion of oxygen and, hence, development of anoxic conditions in ...