Disinfection byproduct formation from algal organic matters after ozonation or ozone combined with activated carbon treatment with subsequent chlorination

被引：22
作者：
Lin, Qiufeng [2 ]
Dong, Feilong [3 ]
Li, Cong [1 ]
Cui, Junkui [2 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200433, Peoples R China
[2] Montclair State Univ, Dept Earth & Environm Studies, Montclair, NJ 07043 USA
[3] Zhejiang Univ Technol, Coll Environm, Hangzhou 310032, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2021年 / 104卷
基金：
中国国家自然科学基金;
关键词：
Ozone combined with activated carbon treatment; Chlorella sp; Disinfection byproducts; PH; Bromide substitution factor; BROMIDE-CONTAINING WATERS; DRINKING-WATER; MICROCYSTIS-AERUGINOSA; OXIDATION-KINETICS; BROMATE FORMATION; CELL INTEGRITY; PRE-OZONATION; NORTH-CHINA; CHLOR(AM)INATION; SPECIATION;
D O I：
10.1016/j.jes.2020.12.009
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Algal organic matter (AOM), including extracellular organic matter (EOM) and intracellular organic matter (IOM) from algal blooms, is widely accepted as essential precursors of disinfection byproducts (DBPs). This study evaluated the effect of ozonation or ozone combined with activated carbon (O-3-AC) treatment on characteristic alternation and DBP formation with subsequent chlorination of Chlorella sp.. The effects of pH and bromide concentration on DBP formation by ozonation or O-3-AC treatment were also investigated. Results showed that the potential formation of DBPs might be attributed to ozonation, but these DBP precursors could be further removed by activated carbon (AC) treatment. Moreover, the formation of target DBPs was controlled at acidic pH by alleviating the reactions between chlorine and AOM. Besides, the bromide substitution factor (BSF) value of trihalomethanes (THMs) from EOM and IOM remained constant after AC treatment. However, THM precursors could be significantly decreased by AC treatment. The above results indicated that O-3-AC was a feasible treatment method for algal-impacted water. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码：233 / 241
页数：9
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