The removal of trimethoprim and sulfamethoxazole by a high infiltration rate artificial composite soil treatment system

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 dif...

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Bibliographic Details
Published in:Frontiers of environmental science & engineering 2017-04, Vol.11 (2), p.133-142, Article 12
Main Authors: Liu, Qinqin, Li, Miao, Zhang, Fawang, Yu, Hechun, Zhang, Quan, Liu, Xiang
Format: Article
Language:English
Subjects:
Antibiotics
Artificial composite soil treatment
Calcium ions
Clay
Drinking water
Earth and Environmental Science
Effluents
Environment
Groundwater
Hydrogeochemical processes
Hydrogeochemistry
Infiltration
Infiltration rate
Ion exchange
Magnesium
Research Article
Soil treatment
Soils
Sorption
Sulfamethoxazole
Sulfonamides
Surface water
Surface-groundwater relations
Trimethoprim
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Summary: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.
ISSN:2095-2201
2095-221X
DOI:10.1007/s11783-017-0920-z