Production of trihalomethanes, haloacetaldehydes and haloacetonitriles during chlorination of microcystin-LR and impacts of pre-oxidation on their formation

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• 作者：Wenhai Chu^a ; ^{feedwater@126.com} ; ^{waterman@tongji.edu.cn} ; ^{1world1water@tongji.edu.cn} ; Dechang Yao^a ; Yang Deng^b ; Minghao Sui^a ; Naiyun Gao^a
• 关键词：Adda ; 3 amino-9-methoxy-2 ; 6 ; 8-trimethyl-10-phenyldeca-4 ; 6-dienoic acid ; Ala ; alanine ; Arg ; arginine ; Asp ; aspartic acid ; BCAN ; bromochloroacetonitrile ; BDCM ; bromodichloromethane ; BF ; bromoform ; BIF ; bromide incorporation factor ; BUF ; bromide utilization factor ; C-DBP ; carbonaceous DBP ; CH ; chloral hydrate ; ClO2 ; chlorine dioxide ; CF ; chloroform ; DBAN ; dibromoacetonitrile ; DBCM ; dibromochloromethane ; DCAN ; dichloronitromethane ; DBP ; disinfection byproduct ; DON ; dissolved organic nitrogen ; DWTP
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：5 April 2017
• 年：2017
• 卷：327
• 期：Complete
• 页码：153-160
• 全文大小：1782 K
• 卷排序：327

文摘

MC-LR formed more chloroform (CF) during chlorination than free amino acids. Peptide bonds in MC-LR contribute to dichloroacetonitrile (DCAN) formation. Higher pH favors CF and chloral hydrate (CH) formation, but restrains DCAN formation. Presence of bromide increased the formation of bromo-DBPs (e.g., TBAL) from MC-LR. ClO2 or PM pre-treatment both reduced DBPs during chlorination, but not for H2O2.