摘要
考察了6种不同规格的颗粒活性炭(GAC)对饮用水消毒后产生的副产物(DBPs)的吸附效果及毒性控制情况。结果表明,投加1.5 g/L GAC、pH=7时,对DBPs吸附效果为:卤乙腈>卤乙酰胺>卤代醛、3卤代DBPs>2卤代DBPs、Br-DBPs>Cl-DBPs,表明GAC对DBPs的吸附效果与DBPs的极性有负相关性;不同粒径的GAC对DBPs吸附效果和毒性降低效果存在差异,粒径最小的GAC-F对Cl-DBPs和Br-DBPs吸附量和毒性降低效果均最高。
The removal and toxicity control of disinfection by-products(DBPs)produced by disinfection of drinking water six kinds of granular activated carbon(GAC)with different characteristics were investigated.Results showed that under the conditions of 1.5 g/L GAC dosage and pH=7,GAC exhibited the following adsorption effect:haloacetonitriles>haloacetamides>haloacetaldehydes,trihalogenated DBPs>dehalogenated DBPs,Br-DBPs>Cl-DBPs.It indicated that the adsorption effect of GAC on DBPs had a negative correlation with the polarity of DBPs.The particle size of GAC impacted the adsorption effect of DBPs.Among the 6 types of GAC,GAC-F with the smallest particle size adsorbed the most Cl-DBPs and Br-DBPs,and the comprehensive toxicity reduction rate by GAC-F was also the highest.
作者
李永真
陆永生
王菲菲
仝雪城
郭迎庆
楚文海
Li Yongzhen;Lu Yongsheng;Wang Feifei;Tong Xuecheng;Guo Yingqing;Chu Wenhai(School of Environment and Safety Engineering,Changzhou University,Changzhou 213164,China;School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200444,China;Pratt Purification Technology of Tianjin Co.,Ltd.,Tianjin 301800,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2020年第11期36-40,共5页
Industrial Water Treatment
基金
国家重大科技专项(2017ZX07201005)。
关键词
污水
饮用水
活性炭
消毒副产物
wastewater
drinking water
activated carbon
disinfection by-products
