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The removal of trimethoprim and sulfamethoxazole by a high infiltration rate artificial composite soil treatment system 被引量:3
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作者 Qinqin Liu Miao Li +3 位作者 Fawang Zhang Hechun Yu Quan Zhang Xiang Liu 《Frontiers of Environmental Science & Engineering》 SCIE EI CAS CSCD 2017年第2期133-142,共10页
Sulfamethoxzole (SMX) and trimethoprim (TMP), two combined-using sulfonamide antibiotics, have gained increasing attention in the surface water, groundwater and the drinking water because of the ecological risk. T... Sulfamethoxzole (SMX) and trimethoprim (TMP), two combined-using sulfonamide antibiotics, have gained increasing attention in the surface water, groundwater and the drinking water because of the ecological risk. The removal of TMP and SMX by artificial composite soil treatment system (ACST) with different infiltration rates was systematically investigated using K+, Na+, Ca2+, Mg2+ hydrogeochemical indexes. Batch experiments showed that the sorption onto the low-cost and commercially available clay ceramsites was effective for the removal of SMX and TMP from water. The column with more silty clay at high infiltration rate (1.394 m·d^-1) had removal rates of 80% to 90% for TMP and 60% to 70% for SMX. High SMX and TMP removal rates had a higher effluent concentration of K+, Ca2+ and Mg2+ and had a lower effluent Na+ concentration. Removal was strongly related to sorption. The results showed that the removal of SMX and TMP was related to hydrogeochemical processes. In this study, ACST is determined to be applicable to the drinking water plants. 展开更多
关键词 TnmethoprimSulfamethoxazoleArtificial composite soil treatmenthydrogeochemical processesIon exchange
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