净水技术2026，Vol.45Issue(5)：54-62,9.DOI:10.15890/j.cnki.jsjs.2026.05.008
水厂生物活性炭滤池去除多种有机污染物效果评估
Evaluation of BAC Filter for Multiple Organic Contaminants Removal in WTPs
摘要
Abstract
Under the background of combined climate change and source-water pollution,multiple organic contaminants have been detected in water sources.The conventional"coagulation-sedimentation-sand filtration-disinfection"water purification treatment process still exhibits limitations in terms of health related risk control and the removal of emerging contaminants(ECs).The introduction of biological activated carbon(BAC)filter can enhance the level of risk control and the advanced removal capacity of pollutants.Accordingly,BAC filter has been widely incorporated into the upgrading and reconstruction of conventional treatment processes at water treatment plants(WTPs)in China.[Objective]This paper aims to evaluate the removal performance of various organic contaminants and the seasonal stability of treatment efficiency after the addition of a BAC filter,providing technical support for future process reconstruction in WTPs.[Methods]A one-year detection was conducted on finished water from two WTPs of a certain City in southern China,one using a conventional treatment process and the other equipped with an additional BAC filter following the conventional process.The performance of the two WTPs in removing permanganate index,dissolved organic matter(DOM),disinfection by-products(DBPs)formation potential(DBPs FP),and ECs was evaluated.[Results]The addition of the BAC filter did not significantly enhance the removal of the permanganate index or turbidity.However,it markedly improved the removal of fulvic acid-like and humic acid-like fractions in DOM,achieving removal efficiencies exceeding 50％.The removal of aromatic protein-like substances increased from below 20％to over 60％.The removal of the sample at 254 nm(UV254)followed a similar pattern,remaining stable above 60％across all seasons-approximately 20％higher than that of the conventional process.The removal of DBPs FP remained above 55％throughout all seasons,peaking in winter at over 80％.The toxicity of DBPs was dominated by haloacetaldehydes and halonitriles,accounting for more than 75％of total DBPs-associated toxicity.After adding the BAC filter,the removal efficiencies of these two DBP groups increased to over 50％in all seasons,resulting in more than a 50％reduction in DBPs toxicity of finished water-about 20％higher than the conventional treatment.Due to their high solubility,small molecular size,and strong chemical stability,certain ECs exhibited poor removal(＜40％)under the conventional process.In contrast,the addition of BAC filter substantially improved treatment performance,achieving over 90％removal for pesticide contaminants and up to 97％for antibiotics across all seasons.[Conclusion]The addition of BAC advanced treatment markedly enhances the removal of different DOM fractions in water in all seasons,reduces DBPs formation,and maintains ECs in finished water at low levels,demonstrating superior removal efficiency and process stability.关键词
生物活性炭/溶解性有机物/消毒副产物/新污染物/稳定性Key words
biological activated carbon(BAC)/dissolved organic matter(DOM)/disinfection by-products(DBPs)/emerging contaminants(ECs)/stability分类
建筑与水利引用本文复制引用
仇付国,许谦,董慧峪,杜艳龙,彭玉婷,贾廷方,王振宇,程晓宇,季闻翔,蒋菱,蒋才芳..水厂生物活性炭滤池去除多种有机污染物效果评估[J].净水技术,2026,45(5):54-62,9.基金项目
广西重点研发计划(AB24010225) （AB24010225）
广西绿城水务集团股份有限公司企业研发项目 （）
