[1]高靖雨,蔡武,梁昊,等.生物滤料去除饮用水中消毒副产物和抗性基因对比[J].中国给水排水,2024,40(19):31-38.
　GAOJing-yu,CAIWu,LIANGHao,et al.Removal of Disinfection Byproducts and Antibiotic Resistance Genes in Drinking Water by Biological Filter Media[J].China Water & Wastewater,2024,40(19):31-38.
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生物滤料去除饮用水中消毒副产物和抗性基因对比

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第19期 页码: 31-38 栏目: 出版日期: 2024-10-01
Title:
Removal of Disinfection Byproducts and Antibiotic Resistance Genes in Drinking Water by Biological Filter Media
作者:
高靖雨， 蔡武， 梁昊， 史国贵， 陈友怡， 吕来， 邢学辞， 胡春
（广州大学大湾区环境研究院 珠江三角洲水质安全与保护教育部重点实验室，广东 广州 510006）
Author(s):
GAO　Jing-yu， CAI　Wu， LIANG　Hao， SHI　Guo-gui， CHEN　You-yi， Lü　Lai， XING　Xue-ci， HU　Chun
（Key Laboratory for Water Quality and Conservation of the Pearl River Delta< Ministry of Education>， Institute of Environmental Research at Greater Bay， Guangzhou University， Guangzhou 510006， China）
关键词:
饮用水深度处理;  生物滤料;  消毒副产物;  抗性基因;  胞外聚合物
Keywords:
drinking water advanced treatment;  biological filter media;  disinfection byproducts;  antibiotic resistance genes;  extracellular polymeric substance
摘要:
为强化对水中复合微污染物的去除，制备了改性椰壳活性炭（CAC）和催化剂滤料（HCLL-S8-M），考察了其对含氮消毒副产物生成势（N-DBPsFP）和抗性基因（ARGs）的去除效果和机制。结果表明，在相同复合微污染物条件下（甲基对硫磷和2，4-二氯苯氧乙酸均为1 ?g/L），改性CAC和HCLL-S8-M出水中卤代乙腈和卤代硝基甲烷的总生成势分别为385.15、464.18 ng/L，较进水分别降低了212.74、133.71 ng/L；进水、改性CAC和HCLL-S8-M出水中的ARGs相对丰度分别为4.35%、1.91%和2.88%。改性CAC和HCLL-S8-M可以高效去除溶解性有机物（DOC）和复合微污染物。生物滤料上微生物分泌的胞外聚合物更少，并可富集能够降解有机物的菌群。改性CAC和HCLL-S8-M可通过减少DBPs前体物和ARGs的增殖，控制微污染物胁迫效应造成的间接饮用水水质风险。
Abstract:
To enhance the removal of composite micro-pollutants in water, modified coconut shell activated carbon (CAC) and catalyst filler (HCLL-S8-M) were prepared, and their removal effects and mechanisms on nitrogenous disinfection byproducts formation potential (N-DBPsFP) and antibiotic resistance genes (ARGs) were investigated. The results showed that the total formation potential of haloacetonitriles and halonitromethanes in the modified CAC and HCLL-S8-M effluent were 385.15 ng/L and 464.18 ng/L, which were 212.74 ng/L and 133.71 ng/L lower than that in influent. The relative abundance of ARGs in the influent, modified CAC and HCLL-S8-M effluent were 4.35%, 1.91% and 2.88% under the same complex micro-pollutants conditions (1 -g/L for parathion-methyl and 2,4-dichlorophenoxyacetic acid). Modified CAC and HCLL-S8-M could remove DOC including complex micro-pollutants. Microorganisms secreted less EPS, and those capable of degrading organic matter became dominant in effluent. Modified CAC and HCLL-S8-M reduced the production of DBPs precursors and proliferation of ARGs and helped to control indirect drinking water quality risks due to the stressful effects of micro-pollutants.
更新日期/Last Update: 2024-10-01