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Formation of iodinated trihalomethanes during chlorination of amino acid in waters.
Chemosphere. 2019 Feb; 217:355-363.C

Abstract

Chlorination is essential to provide safe drinking water. However, this process leads to the formation of disinfection byproducts (DBPs). In this study, tryptophan (Trp) has been selected as a precursor to conduct the chlorine disinfection. Moreover, the factors that affect the formation of trihalomethanes (THMs) and iodinated trihalomethanes (I-THMs) are investigated. The formation pathway of Trp chlorination is proposed based on the intermediate products identified. According to the experimental results, the formation of THMs and I-THMs during Trp chlorination fitted a new first-order kinetic model. The dosage of chlorine, temperature, pH and the ratio of bromide and iodide had major influence on the formation of THMs and I-THMs during chlorination. In addition, the inhibition of luminescent bacteria Vibrio fischeri in the water sample increased during Trp chlorination.

Authors+Show Affiliations

College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310027, China.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310027, China.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310027, China.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310027, China.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310027, China.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310027, China. Electronic address: zhangkj@zju.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30419389

Citation

Li, Cong, et al. "Formation of Iodinated Trihalomethanes During Chlorination of Amino Acid in Waters." Chemosphere, vol. 217, 2019, pp. 355-363.
Li C, Lin Q, Dong F, et al. Formation of iodinated trihalomethanes during chlorination of amino acid in waters. Chemosphere. 2019;217:355-363.
Li, C., Lin, Q., Dong, F., Li, Y., Luo, F., & Zhang, K. (2019). Formation of iodinated trihalomethanes during chlorination of amino acid in waters. Chemosphere, 217, 355-363. https://doi.org/10.1016/j.chemosphere.2018.10.190
Li C, et al. Formation of Iodinated Trihalomethanes During Chlorination of Amino Acid in Waters. Chemosphere. 2019;217:355-363. PubMed PMID: 30419389.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Formation of iodinated trihalomethanes during chlorination of amino acid in waters. AU - Li,Cong, AU - Lin,Qiufeng, AU - Dong,Feilong, AU - Li,Yuanhao, AU - Luo,Feng, AU - Zhang,Kejia, Y1 - 2018/10/30/ PY - 2018/07/11/received PY - 2018/10/26/revised PY - 2018/10/27/accepted PY - 2018/11/13/pubmed PY - 2019/2/7/medline PY - 2018/11/13/entrez KW - Amino acid KW - Chlorination KW - Iodinated trihalomethanes KW - Trihalomethanes KW - Tryptophan SP - 355 EP - 363 JF - Chemosphere JO - Chemosphere VL - 217 N2 - Chlorination is essential to provide safe drinking water. However, this process leads to the formation of disinfection byproducts (DBPs). In this study, tryptophan (Trp) has been selected as a precursor to conduct the chlorine disinfection. Moreover, the factors that affect the formation of trihalomethanes (THMs) and iodinated trihalomethanes (I-THMs) are investigated. The formation pathway of Trp chlorination is proposed based on the intermediate products identified. According to the experimental results, the formation of THMs and I-THMs during Trp chlorination fitted a new first-order kinetic model. The dosage of chlorine, temperature, pH and the ratio of bromide and iodide had major influence on the formation of THMs and I-THMs during chlorination. In addition, the inhibition of luminescent bacteria Vibrio fischeri in the water sample increased during Trp chlorination. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/30419389/Formation_of_iodinated_trihalomethanes_during_chlorination_of_amino_acid_in_waters_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(18)32061-7 DB - PRIME DP - Unbound Medicine ER -