[1]王伟国,单英豪,林学然,等.含氯洗膜废水对污水生物脱氮及N2O排放的影响[J].中国给水排水,2026,42(15):73-81.
　WangWeiguo,ShanYinghao,LinXueran,et al.Effects of Chlorine?containing Membrane Cleaning Wastewater on Biological Nitrogen Removal and N2O Emissions in Sewage Treatment[J].China Water & Wastewater,2026,42(15):73-81.
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含氯洗膜废水对污水生物脱氮及N2O排放的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第15期 页码: 73-81 栏目: 出版日期: 2026-08-01
Title:
Effects of Chlorine?containing Membrane Cleaning Wastewater on Biological Nitrogen Removal and N2O Emissions in Sewage Treatment
作者:
王伟国1， 单英豪2,3， 林学然1， 水飞3， 李继宁2， 周裔文3， 唐霞1
（1.广州市净水有限公司，广东 广州 510627；2.南京师范大学 环境学院，江苏 南京 210023；3.广东省科学院生态环境与土壤研究所 华南土壤污染控制与修复国家地方联合工程研究中心 广东省农业环境综合治理重点实验室，广东 广州 510650）
Author(s):
Wang　Weiguo1， Shan　Yinghao2，3， Lin　Xueran1， Shui　Fei3， Li　Jining2， Zhou　Yiwen3， Tang　Xia1
（1. Guangzhou Sewage Purification Co. Ltd.， Guangzhou 510627， China； 2. College of Environment， Nanjing Normal University， Nanjing 210023， China； 3. Guangdong Key Laboratory of Integrated Agro?environmental Pollution Control and Management， National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China， Institute of Eco?environmental and Soil Sciences， Guangdong Academy of Sciences， Guangzhou 510650， China）
关键词:
含氯洗膜废水;  硝化和反硝化;  氧化亚氮（N2O）;  微生物群落;  脱氮性能
Keywords:
chlorine-containing membrane cleaning wastewater;  nitrification and denitrification;  nitrous oxide (N2O);  microbial community;  nitrogen removal performance
摘要:
为探究含氯洗膜废水对活性污泥生物脱氮性能及氧化亚氮（N2O）排放的影响，采用批次实验模拟硝化与反硝化过程，设置含氯洗膜废水体积比分别为0、10%、30%、50%。结果表明，随含氯洗膜废水比例的增加，硝化速率显著下降，从0.160 mg/（gMLSS·h）降至0.084 mg/（gMLSS·h），而反硝化速率在低比例（10%）下略有提升［0.79 mg/（gMLSS·h）］，在高比例（30%、50%）下明显抑制［分别降至0.67、0.55 mg/（gMLSS·h）］；硝化过程中N2O排放量较低，但反硝化过程中高比例组的N2O峰值显著升高（50%组达到261.84 μmol/L）；微生物群落结构分析显示，含氯洗膜废水驱动微生物群落演替，假单胞菌属（Pseudomonas）等耐氯菌属的丰度上升（从0.54%增至17.13%），而Candidatus Accumulibacter、陶厄氏菌属（Thauera）等敏感菌属的丰度下降。该研究揭示了含氯洗膜废水对脱氮及N2O排放的剂量-效应关系，可为污水处理厂优化回流策略提供参考。
Abstract:
To explore the effects of chlorine-containing membrane cleaning wastewater on the biological nitrogen removal performance and nitrous oxide (N2O) emissions of activated sludge, batch experiments were conducted to simulate nitrification and denitrification processes with chlorine-containing wastewater volume ratios set at 0, 10%, 30%, and 50%. The results showed that as the proportion of chlorine-containing wastewater increased, the nitrification rate decreased significantly from 0.160 mg/(gMLSS·h) to 0.084 mg/(gMLSS·h). The denitrification rate showed a slight increase at the low ratio (10%), reaching 0.79 mg/(gMLSS·h), but was markedly inhibited at higher ratios (30% and 50%), dropping to 0.67 mg/(gMLSS·h) and 0.55 mg/(gMLSS·h), respectively. N2O emissions remained low during nitrification across all groups; however, during denitrification, the peak N2O concentration increased substantially in the high-ratio groups, with the 50% group reaching 261.84 μmol/L. Microbial community analysis revealed that the chlorine-containing wastewater drove succession in the microbial community structure. The relative abundance of chlorine-tolerant genera, such as Pseudomonas, increased from 0.54% to 17.13%, while the abundance of sensitive genera, including Candidatus Accumulibacter and Thauera, declined. This study elucidates the dose-effect relationship of chlorine-containing membrane cleaning wastewater on nitrogen removal and N2O emissions, and provides valuable insights for optimizing recirculation strategies in wastewater treatment plants.
更新日期/Last Update: 2026-08-01