[1]吴青,贾炎,崔延瑞,等.生物活性炭对SBR生物脱氮过程中N2O产生的影响[J].中国给水排水,2021,37(9):33-39.
　WU Qing,JIA Yan,CUI Yan-rui,et al.Effects of BAC on N2O Production during Biological Nitrogen Removal Process in SBR under Different C/N Ratios[J].China Water & Wastewater,2021,37(9):33-39.
点击复制

生物活性炭对SBR生物脱氮过程中N2O产生的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第9期 页码: 33-39 栏目: 出版日期: 2021-05-01
Title:
Effects of BAC on N2O Production during Biological Nitrogen Removal Process in SBR under Different C/N Ratios
作者:
吴青1,2,3，贾炎1,2,3，崔延瑞1,2,3，鲍林林1,2,3，马凯丽1,2,3，康威1,2,3，张恒涛4，邹旭艳4
(1.河南师范大学环境学院黄淮水环境与污染防治教育部重点实验室，河南新乡453007；2.河南师范大学河南省环境污染控制重点实验室，河南新乡453007；3.河南师范大学河南省水处理关键技术国际联合实验室，河南新乡453007；4.中国石油天然气管道工程有限公司，河北廊坊065000)
Author(s):
WU Qing1，2，3,JIA Yan1，2，3,CUI Yan-rui1，2，3,BAO Lin-lin1，2，3,MA Kai-li1，2，3,KANG Wei1，2，3，ZHANG Heng-tao4,ZOU Xu-yan4
(1. Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control , School of Environment, Henan Normal University, Xinxiang 453007, China； 2. Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China； 3. Henan Province International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China； 4. China Petroleum Pipeline Engineering Corporation, Langfang 065000, China)
关键词:
生物活性炭; 序批式活性污泥反应器; 同步硝化反硝化; N2O; C/N值
Keywords:
biological activated carbon(BAC); sequencing batch reactor(SBR); simultaneous nitrification and denitrification (SND); N2O; C/N ratio
摘要:
为考察生物活性炭（BAC）对不同C/N值废水脱氮过程中N2O产生的影响，在序批式活性污泥反应器（SBR）中加入活性炭形成SBRBAC，并与活性污泥SBR（SBRAS）进行了比较。以甲醇为碳源配制人工废水，控制进水C/N值分别为3、6和9，在室温（15~27 ℃）条件下同步运行两个反应器，并测定N2O、NH4+-N、NO3--N、NO2--N和TN浓度变化，分析BAC影响N2O产生的机制。在控制混合液DO为2.0~3.0 mg/L条件下，C/N值为3时BAC对N2O的产生没有影响，C/N值为6时BAC可以减少N2O产生，C/N值为9时BAC导致N2O浓度增加；BAC的存在促进了同步硝化反硝化（SND）的进行，进而影响N2O的产生；C/N值是影响脱氮效果和N2O产生的重要因素，COD下降拐点处复杂的反应环境为SND提供了必要条件，BAC能够强化该拐点处的反应条件。
Abstract:
In order to investigate the effects of biological activated carbon (BAC) on N2O production in biological nitrogen removal process for different C/N ratio wastewater,activated carbon was added to sequencing batch reactor (SBR) to form BAC-SBR (SBRBAC), and compared with activated sludge SBR (SBRAS). At room temperature of 15-27 ℃, methanol was used as the carbon source to prepare artificial wastewater, the influent C/N ratio was adjusted to be 3, 6 and 9 respectively, and the two reactors were operated simultaneously. The concentrations of N2O,NH4+-N，NO3--N，NO2--N and TN were measured. And also the mechanism of BAC affecting N2O production was analyzed. The experimental results showed that when DO in mixed liquid was controlled at 2.0-3.0 mg/L, and C/N ratio was 3, BAC had no effect on N2O production; when the C/N ratio was 6, BAC could reduce N2O production; and when the C/N ratio was 9, BAC led to an increase in N2O concentration. The presence of BAC promoted simultaneous nitrification and denitrification (SND), which affected the production of N2O; C/N ratio of wastewater was an important factor that affected the effect of denitrification and N2O. The complex reaction environment at the inflection point of COD decline provided the necessary conditions for SND, and BAC could strengthen the reaction conditions at this inflection point.

相似文献/References:

[1]许子丽,陈卫,陶辉,等.O3/BAC工艺中臭氧作用条件优化研究[J].中国给水排水,2020,36(11):33.
[2]陈诗琦,刘成,沈海军,等.水厂失效生物活性炭的更换策略探讨[J].中国给水排水,2020,36(17):49.
　CHEN Shi-qi,LIU Cheng,SHEN Hai-jun,et al.Discussion on Replacement Strategy of Invalidated Biological Activated Carbon in Drinking Water Plants[J].China Water & Wastewater,2020,36(9):49.
[3]高佩玥,叶辉,张东,等.饮用水厂中试生物活性炭柱启动期判定指标[J].中国给水排水,2022,38(15):43.
　GAOPei-yue,YEHui,ZHANGDong,et al.Evaluation Index of Startup Period of Pilot?scale Biological Activated Carbon Filter in Drinking Water Treatment Plant[J].China Water & Wastewater,2022,38(9):43.

更新日期/Last Update: 2021-05-01