鲁智礼^1,,
张堯^1,2,
黄俊亮³,
石宝友²,
胡春⁴,
迟晓静⁵,
王海波^2,
1.华北水利水电大学环境与市政工程学院，郑州 450045
2.中国科学院生态环境研究中心，中国科学院饮用水科学与技术重点实验室，北京 100085
3.河海大学环境学院，南京 210098
4.广州大学大湾区环境研究院，广州 510006
5.北京华夏博信环境咨询有限公司，北京 100085
基金项目: 国家重点研发计划项目2016YFA0203204
国家自然科学基金资助项目51878654, 51838005
中国科学院前沿科学重点研究项目QYZDY-SSW-DQC004
国家水体污染与控制科技重大专项2017ZX07108, 2017ZX07501-002国家重点研发计划项目(2016YFA0203204)
国家自然科学基金资助项目(51878654, 51838005)
中国科学院前沿科学重点研究项目(QYZDY-SSW-DQC004)
国家水体污染与控制科技重大专项(2017ZX07108, 2017ZX07501-002)

Enhancement of potable water disinfection efficiency by heterogeneous Fenton-activated carbon process

LU Zhili^1,,
ZHANG Yao^1,2,
HUANG Junliang³,
SHI Baoyou²,
HU Chun⁴,
CHI Xiaojing⁵,
WANG Haibo^2,
1.Institute of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
2.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
3.College of Environment, Hohai University, Nanjing 210098, China
4.Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China
5.Beijing Huaxia Boxin Environmental Consulting Co.Ltd., Beijing 100085, China

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摘要:为了考察多相芬顿-活性炭工艺对饮用水中微生物消毒效果的影响，采用中试对活性炭工艺与多相芬顿-活性炭工艺进行了对比研究。该中试对水中溶解性有机物(DOC)、总细菌16S rRNA、三磷酸腺苷(ATP)及胞外多聚物(EPS)含量与性质进行了分析。结果表明，多相芬顿-活性炭工艺能够将出水DOC浓度控制在(0.90±0.11) mg·L-1，并使得EPS减少83.2%，降低EPS中蛋白质/多糖(PN/PS)比值，其凝聚性明显下降，在相同氯浓度投加情况下水中微生物16S rRNA基因拷贝数去除量提高了3.5个对数量级，ATP浓度降低为0.016 nmol·L-1。因此，多相芬顿-活性炭工艺明显提高了对有机物的去除能力，显著降低EPS中蛋白质的含量，使得微生物凝聚性变差，微生物更加容易被消毒剂灭活，该工艺强化了饮用水消毒效果。
关键词: 多相芬顿/
活性炭/
胞外多聚物/
微生物/
消毒

Abstract:In order to investigate the effect of heterogeneous Fenton-activated carbon process on the disinfection of microbes in drinking water, the treatment processes of activated carbon filtration and heterogeneous Fenton-activated carbon filtration were studied in a pilot scale. The concentrations and properties of dissolved organic carbon (DOC), 16S rRNA, ATP and extracellular polymeric substances (EPS) were analyzed. The results showed that the DOC concentration in effluents of heterogeneous Fenton-activated carbon treatment process was (0.90 ±0.11) mg·L-1. This heterogeneous process could lead to EPS reduction by 83.2%, the decrease of EPS protein/polysaccharide (PN/PS) ratio, and an obvious decrease of microbial EPS coagulation ability. Under the same concentration of chlorine addition, the removal of 16S rRNA gene copies increased by 3.5 logarithmic order of magnitude, and the ATP concentration decreased to 0.016 nmol·L-1. Therefore, when the heterogeneous Fenton-activated carbon treatment process was used, the organic matter removal was significantly improved, and the content of proteins in EPS was remarkably reduced, and the coagulation ability of microbes was weakened, then they were easily inactivated by disinfectant. This treatment process enhanced the disinfection efficiency.
Key words:heterogeneous Fenton/
activated carbon/
extracellular polymeric substances/
microorganisms/
disinfection.

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多相芬顿-活性炭工艺强化饮用水消毒效果

鲁智礼^1,,
张堯^1,2,
黄俊亮³,
石宝友²,
胡春⁴,
迟晓静⁵,
王海波^2,
1.华北水利水电大学环境与市政工程学院，郑州 450045
2.中国科学院生态环境研究中心，中国科学院饮用水科学与技术重点实验室，北京 100085
3.河海大学环境学院，南京 210098
4.广州大学大湾区环境研究院，广州 510006
5.北京华夏博信环境咨询有限公司，北京 100085
基金项目: 国家重点研发计划项目2016YFA0203204 国家自然科学基金资助项目51878654, 51838005 中国科学院前沿科学重点研究项目QYZDY-SSW-DQC004 国家水体污染与控制科技重大专项2017ZX07108, 2017ZX07501-002国家重点研发计划项目(2016YFA0203204) 国家自然科学基金资助项目(51878654, 51838005) 中国科学院前沿科学重点研究项目(QYZDY-SSW-DQC004) 国家水体污染与控制科技重大专项(2017ZX07108, 2017ZX07501-002)
关键词: 多相芬顿/
活性炭/
胞外多聚物/
微生物/
消毒
摘要:为了考察多相芬顿-活性炭工艺对饮用水中微生物消毒效果的影响，采用中试对活性炭工艺与多相芬顿-活性炭工艺进行了对比研究。该中试对水中溶解性有机物(DOC)、总细菌16S rRNA、三磷酸腺苷(ATP)及胞外多聚物(EPS)含量与性质进行了分析。结果表明，多相芬顿-活性炭工艺能够将出水DOC浓度控制在(0.90±0.11) mg·L-1，并使得EPS减少83.2%，降低EPS中蛋白质/多糖(PN/PS)比值，其凝聚性明显下降，在相同氯浓度投加情况下水中微生物16S rRNA基因拷贝数去除量提高了3.5个对数量级，ATP浓度降低为0.016 nmol·L-1。因此，多相芬顿-活性炭工艺明显提高了对有机物的去除能力，显著降低EPS中蛋白质的含量，使得微生物凝聚性变差，微生物更加容易被消毒剂灭活，该工艺强化了饮用水消毒效果。

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