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Formation characteristics of disinfection byproducts from four different algal organic matter during chlorination and chloramination.
Chemosphere. 2022 Dec; 308(Pt 1):136171.C

Abstract

Algal organic matter (AOM) has become an important precursor of disinfection byproducts (DBPs) in multiple drinking water sources. In this study, the formation of DBPs during chlorination and chloramination of AOMs from four algal species (Microcystis aeruginosa, Chlorella vulgaris, Scenedesmus obliquus, and Cyclotella sp.) under different conditions (disinfectant doses 4.0-8.0 mg/L as Cl2, pH 6.0-8.0, and bromide 0-1.0 mg/L) were simultaneously investigated. Some common and specific characteristics of DBP formation have also been identified. The yields of total DBPs from the four AOMs were 3.28 × 102-6.00 × 102 and 1.97 × 102-3.70 × 102 nmol/mg C during chlorination and chloramination, respectively. The proportions of haloacetic acids (HAAs) in total DBPs were approximately ≥50%. Increasing disinfectant doses or pH only enhanced the yields of trihalomethanes (THMs) during chlorination but enhanced the yields of THMs, HAAs and dihaloacetonitriles (DHANs) during chloramination. Increasing bromide concentrations enhanced THM yields but decreased HAA yields during chlorination and chloramination, in addition to the shift from chlorinated DBPs to brominated DBPs. The DHAN yields of the four AOMs slightly decreased with bromide levels during chlorination, whereas different AOMs showed different trends with bromide levels during chloramination. During chlorination, C. vulgaris and S. obliquus AOMs generated higher THM and DHAN yields (at 4.0-5.0 mg/L as Cl2) than the other AOMs. During chloramination, M. aeruginosa AOM generated higher THM and HAA yields than the other AOMs (at 0.1 mg/L bromide). Cyclotella sp. AOM had the highest THM-bromine substitution factors during chlorination and the highest DHAN-bromine substitution factors during both chlorination and chloramination (at 0.1 mg/L bromide).

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zhai H
School of Environmental Science and Engineering. Tianjin University, Weijin Road 92, Tianjin, 300072, China. Electronic address: zhaihy@tju.edu.cn.
Cheng S
School of Environmental Science and Engineering. Tianjin University, Weijin Road 92, Tianjin, 300072, China; Tianjin LVYIN Landscape&Ecology Construction Co., Kaihua Road 20, Hi-Tech, Tianjin, 300110, China. Electronic address: Chengsz19960102@163.com.
Zhang L
School of Environmental Science and Engineering. Tianjin University, Weijin Road 92, Tianjin, 300072, China. Electronic address: zhangliangyu1998@163.com.
Luo W
School of Environmental Science and Engineering. Tianjin University, Weijin Road 92, Tianjin, 300072, China. Electronic address: luow088@163.com.
Zhou Y
School of Environmental Science and Engineering. Tianjin University, Weijin Road 92, Tianjin, 300072, China. Electronic address: hrzyn_107@163.com.

MeSH

BromidesBromineChlorella vulgarisChlorineDisinfectantsDisinfectionDrinking WaterHalogenationTrihalomethanesWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

36037959

Citation

Zhai, Hongyan, et al. "Formation Characteristics of Disinfection Byproducts From Four Different Algal Organic Matter During Chlorination and Chloramination." Chemosphere, vol. 308, no. Pt 1, 2022, p. 136171.
Zhai H, Cheng S, Zhang L, et al. Formation characteristics of disinfection byproducts from four different algal organic matter during chlorination and chloramination. Chemosphere. 2022;308(Pt 1):136171.
Zhai, H., Cheng, S., Zhang, L., Luo, W., & Zhou, Y. (2022). Formation characteristics of disinfection byproducts from four different algal organic matter during chlorination and chloramination. Chemosphere, 308(Pt 1), 136171. https://doi.org/10.1016/j.chemosphere.2022.136171
Zhai H, et al. Formation Characteristics of Disinfection Byproducts From Four Different Algal Organic Matter During Chlorination and Chloramination. Chemosphere. 2022;308(Pt 1):136171. PubMed PMID: 36037959.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Formation characteristics of disinfection byproducts from four different algal organic matter during chlorination and chloramination. AU - Zhai,Hongyan, AU - Cheng,Shengzi, AU - Zhang,Liangyu, AU - Luo,Wenjing, AU - Zhou,Yanan, Y1 - 2022/08/26/ PY - 2022/06/06/received PY - 2022/08/18/revised PY - 2022/08/20/accepted PY - 2022/8/30/pubmed PY - 2022/10/14/medline PY - 2022/8/29/entrez KW - Algal organic matter KW - Chloramination KW - Chlorination KW - Disinfection byproducts SP - 136171 EP - 136171 JF - Chemosphere JO - Chemosphere VL - 308 IS - Pt 1 N2 - Algal organic matter (AOM) has become an important precursor of disinfection byproducts (DBPs) in multiple drinking water sources. In this study, the formation of DBPs during chlorination and chloramination of AOMs from four algal species (Microcystis aeruginosa, Chlorella vulgaris, Scenedesmus obliquus, and Cyclotella sp.) under different conditions (disinfectant doses 4.0-8.0 mg/L as Cl2, pH 6.0-8.0, and bromide 0-1.0 mg/L) were simultaneously investigated. Some common and specific characteristics of DBP formation have also been identified. The yields of total DBPs from the four AOMs were 3.28 × 102-6.00 × 102 and 1.97 × 102-3.70 × 102 nmol/mg C during chlorination and chloramination, respectively. The proportions of haloacetic acids (HAAs) in total DBPs were approximately ≥50%. Increasing disinfectant doses or pH only enhanced the yields of trihalomethanes (THMs) during chlorination but enhanced the yields of THMs, HAAs and dihaloacetonitriles (DHANs) during chloramination. Increasing bromide concentrations enhanced THM yields but decreased HAA yields during chlorination and chloramination, in addition to the shift from chlorinated DBPs to brominated DBPs. The DHAN yields of the four AOMs slightly decreased with bromide levels during chlorination, whereas different AOMs showed different trends with bromide levels during chloramination. During chlorination, C. vulgaris and S. obliquus AOMs generated higher THM and DHAN yields (at 4.0-5.0 mg/L as Cl2) than the other AOMs. During chloramination, M. aeruginosa AOM generated higher THM and HAA yields than the other AOMs (at 0.1 mg/L bromide). Cyclotella sp. AOM had the highest THM-bromine substitution factors during chlorination and the highest DHAN-bromine substitution factors during both chlorination and chloramination (at 0.1 mg/L bromide). SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/36037959/Formation_characteristics_of_disinfection_byproducts_from_four_different_algal_organic_matter_during_chlorination_and_chloramination_ DB - PRIME DP - Unbound Medicine ER -