[1]张瀚中,韩梅,赵志伟,等.炭龄对活性炭工艺去除南水北调水中有机物的影响[J].中国给水排水,2021,37(3):32-37.
　ZHANG Han-zhong,HAN Mei,ZHAO Zhi-wei,et al.Effect of Carbon Age on Removal of Organics in Water from South-to-North Water Diversion Project by Activated Carbon Process[J].China Water & Wastewater,2021,37(3):32-37.
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炭龄对活性炭工艺去除南水北调水中有机物的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第3期 页码: 32-37 栏目: 出版日期: 2021-02-01
Title:
Effect of Carbon Age on Removal of Organics in Water from South-to-North Water Diversion Project by Activated Carbon Process
作者:
张瀚中1，韩梅2，赵志伟1，顾军农2，刘珊珊1,丁硕2
(1.重庆大学环境与生态学院，重庆400030；2.北京市自来水集团有限责任公司北京市供水水质工程技术研究中心，北京100012)
Author(s):
ZHANG Han-zhong1,HAN Mei2,ZHAO Zhi-wei1,GU Jun-nong2,LIU Shan-shan1,DING Shuo2
(1. College of Environment and Ecology, Chongqing University, Chongqing 400030, China; 2. Beijing Engineering Research Center for Drinking Water Quality, Beijing Waterworks Group Co. Ltd., Beijing 100012, China)
关键词:
活性炭; 炭龄; 南水北调; 有机物; 生物膜
Keywords:
activated carbon; carbon age; South-to-North Water Diversion; organics; biofilm
摘要:
基于北方某水厂中试基地，采用新炭、2.5~3.5年炭、4.5~5.5年炭等不同炭龄的活性炭滤柱，进行为期1年的连续运行，对比研究炭龄对南水北调水源水中有机物去除效果的影响。结果表明，长期运行稳定的活性炭滤柱，主要通过生物作用去除水中的有机物；2.5~3.5年和4.5~5.5年炭龄滤柱对有机物的去除效果差异较小，但二者对三氯甲烷的去除效果优于生物膜不稳定的新炭滤柱；通过高通量测序解析发现，鞘氨醇单胞菌、DSSF69等是优势功能菌，炭龄长的生物多样性更丰富，生物膜系统更稳定。此外，活性炭滤柱对有机物的去除效果与进水有机物的污染程度相关，当进水溶解性有机物浓度较低时，活性炭滤柱会出现吸附物质逆扩散的现象，所以当水质较好时，活性炭滤池的有机物去除效果会减弱。
Abstract:
Effects of biological activated carbon (BAC) age on removal of organics in water from South-to-North Water Diversion Project were compared. The experiment was continuously carried out in a pilot base of a water supply plant in the north for one year, and three kinds of activated carbon were used in the BAC unit, namely new carbon, carbons with age of 2.5-3.5 years and 4.5-5.5 years. Organics removal was mainly completed by biological action in stable activated carbon filter columns during long-term operation.There was little difference between the removal efficiencies of organics of old activated carbon filter columns with age of 2.5-3.5 years and 4.5-5.5 years, but the two had a better removal efficiency of trichloromethane than that of the new carbon filters with unstable attached biofilm. High throughput sequencing analysis found that Sphingomonas, DSSF69, etc were the dominant functional bacteria, and diversity of the old-aged carbon was more abundant and the biofilm system was more stable. In addition, the removal efficiency of organics was related to the pollution degree of the organics in the influent. When the concentration of dissolved organics in the water was low, the activated carbon filter column would appear the phenomenon of adsorbed material inverse diffusion.Therefore, when the water quality was good, organics removal efficiency of the activated carbon filter would be weakened.

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[1]王赛,时玉龙,蒋奇海,等.两种碳基材料对二级出水中有机物的去除特性[J].中国给水排水,2021,37(5):43.
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更新日期/Last Update: 2021-02-01