Atrazine removal from water by activated charcoal cloths

作     者：Javier M.Gonzalez Lynnette R.Murphy Chad J.Penn Veera M.Boddu Laura L.Sanders Javier M. Gonzalez;Lynnette R. Murphy;Chad J. Penn;Veera M. Boddu;Laura L. Sanders

作者机构：National Soil Erosion Research LaboratoryUSDA-ARSWest LafayetteIN47907USA Earth Science DepartmentNortheastern Illinois UniversityChicagoIL60625USA O’Neill School of Public and Environmental AffairsUniversity of IndianaBloomingtonIN47405USA Plant Polymer Research UnitNational Center for Agriculture Utilization ResearchUSDA-ARSPeoriaIL61604USA 

出 版 物：《International Soil and Water Conservation Research》 (国际水土保持研究（英文）)

年 卷 期：2020年第8卷第2期

页      面：205-212页

核心收录：

学科分类：082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 

基　　金：ARS-NSERL USDA-ARS-NCAUR U.S. Department of Agriculture, USDA 

主　　题：Atrazine Activated charcoal Water quality Pesticide Cloth 

摘      要：Pollution control structures may be adapted to enhance the removal of nutrients and pesticides from water. Charcoal-like material is known to sorb organic compounds in solution, including atrazine, a herbicide used to control broadleaf weeds, which persists in soils and can migrate from soils to water bodies, ultimately affecting water quality. The primary goal of this study was to investigate if activated charcoal cloths (single-weave, SW;double-weave, DW;and knitted, KT) are more efficient to remove atrazine from aqueous solutions than a cloth without activated charcoal (control) currently used in pollution control structures. The approach consisted of sorption kinetics, flow-through, and desorption/degradation experiments using 50 and 1000μg L-1 atrazine solutions. Results showed that within 30 min of contact time, the control sorbed from 22.6 to 36.1% of atrazine in solution;whereas the activated charcoal cloths sorbed from 76 to 99% of atrazine in solution (SW KT DW). The flow-through ex-periments showed that the SW sorbed 88.2, 76.1, and 52.2%of atrazine at the contact time of 0.75, 5, and 10 min, respectively. After 28 days of incubation, previously sorbed atrazine on the SW cloth did not degrade and 2.0% was desorbed. The results showed that activated charcoal cloths are a practical alternative for improving atrazine removal in water in pollution control structures.