title: Attenuation of contaminants of emerging concern during surface-spreading aquifer recharge.
abstract: 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.
authors.affiliation: Advanced Water Technology Center (AQWATEC), Environmental Science and Engineering Division, Colorado School of Mines, Golden, CO 80401, USA.
authors.forename: Bonnie V
authors.initials: BV
authors.lastname: Laws
authors.forename: Eric R V
authors.initials: ER
authors.lastname: Dickenson
authors.forename: Theodore A
authors.initials: TA
authors.lastname: Johnson
authors.forename: Shane A
authors.initials: SA
authors.lastname: Snyder
authors.forename: Jörg E
authors.initials: JE
authors.lastname: Drewes
mesh_terms: D001262:Atenolol / Q000032:analysis / Q000737:chemistry; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods; D005618:Fresh Water / Q000737:chemistry*; D015248:Gemfibrozil / Q000032:analysis / Q000737:chemistry; D008620:Meprobamate / Q000032:analysis / Q000737:chemistry; D011324:Primidone / Q000032:analysis / Q000737:chemistry; D058438:Water Cycle; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D014881:Water Supply / Q000032:analysis
chemical_list: D014874:Water Pollutants, Chemical; D011324:Primidone; D001262:Atenolol; D008620:Meprobamate; D015248:Gemfibrozil