限氧条件下Fe^(3+)优化短程硝化性能的研究  

Research on optimizing the short-range nitrification performance by Fe^(3+)under oxygen limiting conditions

作　　者：律泽[1] 谭福龙 张驰[1] 何旷怡 孔德显 LYU Ze;TAN Fulong;ZHANG Chi;HE Kuangyi;KONG Dexian(School of Municipal&Environmental Engineering,Shenyang Jianzhu University,Shenyang Liaoning 110168)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《环境污染与防治》2025年第4期42-47,I0003,共7页Environmental Pollution & Control

基　　金：辽宁省教育厅重点攻关项目(No.LJKZZ20220081);辽宁省教育厅服务地方项目(No.JYTMS20231557);辽宁省教育厅青年项目(No.LJ212410153007);兴安盟本级科技合作项目(No.WLFZ2024001)。

摘　　要：研究不同溶解氧(DO)和Fe^(3+)浓度对短程硝化性能的影响。结果表明,当DO为0.5 mg/L、Fe^(3+)为10 mg/L时,短程硝化效果最佳,平均氨氮去除率为97.9%,平均出水亚硝态氮为174.9 mg/L,平均亚硝态氮累积率为90.2%。利用氨氧化菌和亚硝酸盐氧化菌的氧饱和差异实现对短程硝化系统的调控;Fe^(3+)作为生物因子介入微生物生化反应和代谢过程,参与电子传递,激活酶促反应实现强化短程硝化系统的运行。The effects of dissolved oxygen(DO)and Fe^(3+)concentration on short-range nitrification were studied.The results showed that the average removal rate of ammonia nitrogen was 97.9%,and the average effluent nitrite nitrogen was 174.9 mg/L,the average nitrite nitrogen accumulation rate was 90.2%when DO was 0.5 mg/L,Fe^(3+)was 10 mg/L.The difference in oxygen saturation between ammonia oxidizing bacteria and nitrite oxidizing bacteria was used to regulate short-range nitrification systems.Fe^(3+),as a biological factor,was used to intervene in microbial biochemical reaction and metabolism,participate in electron transport-activated enzymatic reaction and enhance the operation of short-range nitrification system.

关 键 词：短程硝化 溶解氧 铁离子 氨氧化菌 

分 类 号：X703[环境科学与工程—环境工程]