Attenuation of contaminants of emerging concern during surface-spreading aquifer recharge

作者：Laws Bonnie V; Dickenson Eric R V^*; Johnson Theodore A; Snyder Shane A; Drewes Joerg E

来源：Science of the Total Environment, 2011, 409(6): 1087-1094.

DOI：10.1016/j.scitotenv.2010.11.021

• Contaminants of emerging concern
• Managed aquifer recharge
• Surface spreading
• Soil aquifer treatment
• Indirect potable reuse

The attenuation of a diverse suite of contaminants of emerging concern (CECs) and bulk water quality changes was evaluated at a surface-spreading aquifer recharge operation across a detailed subsurface profile (9 locations), representing both short- and long-travel times (10 h to 60 days). Seventeen CECs were detected in the recharge basin and the concentrations of all were reduced during soil aquifer treatment (SAT), with 11 of the target compounds attenuated by >80% after 60 days of travel time. Select CECs (atenolol, gemfibrozil, N,N-diethly-3-methylbenzamide, meprobamate, tris(2-chloroethyl)phosphate, and primidone) and bulk water organic-carbon measurements (total organic carbon, biodegradable organic carbon, size-exclusion chromatography and fluorescence excitation-emission matrices) were identified as monitoring parameters that can be used to assess SAT performance at surface-spreading operations.

• 出版日期2011-2-15