Effects of suspended particulate matter from natural lakes in conjunction with coagulation to tetracycline removal from water

Coagulation is a common method used to remove suspended particulate matter (SPM) from the water supply. SPM has preferable adsorption ability for antibiotics in water; therefore, SPM adsorption and coagulation may be a possible way to remove tetracycline (TC) from water. This study carried out coagu...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2021-08, Vol.277, p.130327-130327, Article 130327
Main Authors: He, Zhenkai, Wang, Xinyu, Luo, Yunhe, Zhu, Yazheng, Lai, Xin, Shang, Jingge, Chen, Jianqiu, Liao, Qianjiahua
Format: Article
Language:English
Subjects:
Adsorption
Coagulation
Influencing factors
Suspended particulate matter
Tetracycline
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Summary:Coagulation is a common method used to remove suspended particulate matter (SPM) from the water supply. SPM has preferable adsorption ability for antibiotics in water; therefore, SPM adsorption and coagulation may be a possible way to remove tetracycline (TC) from water. This study carried out coagulation experiments combining SPM collected from a natural lake at a location with three common coagulants—polyaluminum sulfate, polyaluminum chloride, and polyferric sulfate—under different pH values, exploring the adsorption of TC by SPM, coagulation of SPM with TC, and the primary influencing factors of this process. The maximum removal rate of TC can reach 97.87% with an SPM concentration of 1000 mg/L. Multi-factor analysis of variance showed the importance of various TC removal factors, which were ranked as follows: SPM concentration ≫ initial TC concentration > type of coagulant > pH values. The higher the SPM concentration, the better the TC removal (p 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2021.130327