pH值和有机碳源对匹配厌氧氨氧化的SBR亚硝化的影响  

Study on the Impact of p H and Organic Carbon Source on ANAMMOX Adopting Nitrosification in SBR

作　　者：李亚峰[1] 马晨曦[1] 张驰[1] 

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：《沈阳建筑大学学报（自然科学版）》2014年第6期1128-1135,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51108277);住房和城乡建设部科技攻关项目(2011-K7-8);辽宁省教育厅科研项目(L2012203);辽宁环境科研-123工程资助课题(CEPF2012-123-2-7)

摘　　要：目的研究p H值和有机碳源对匹配厌氧氨氧化的前置亚硝化反应的影响,确定实现NO2^--N稳定高效积累的最佳运行参数.方法试验采用人工配水,控制反应温度为28℃,DO质量浓度在1.0 mg/L左右,进水NH4^＋-N质量浓度为150 mg/L,分别通过静态试验和动态试验考察在不同p H值（6.0、6.5、7.0、7.5、8.0、8.5）和不同COD质量浓度（50 mg/L、100 mg/L、150 mg/L、200 mg/L、250 mg/L）条件下,NH4^＋-N去除情况和NO^2--N累积情况.结果在本实验条件下,当p H值为7.5~8.0、ρ（COD）〈150 mg/L时,SBR反应器可以获得理想的亚硝化效果,NH4^＋-N去除率和NO2^--N累积率分别可以维持在90%和75%以上.结论 p H值偏碱性有利于实现较高质量浓度的NO2^--N积累.当进水中存在适量有机碳源时,匹配厌氧氨氧化的亚硝化反应可以正常进行,但有机碳源质量浓度过高会对亚硝化细菌的生长繁殖产生明显的抑制作用.This paper aims to study on the impact of p H and organic carbon source on nitrosification matching to ANAM M OX and to determine the best operating parameters of NO2^-- N stable and effective accumulation. Using synthetic w astew ater and controlling the reaction temperature at28 ℃,DO concentration around 1. 0 mg / L,concentration influent ammonia 150 mg / L,static tests and dynamic tests w ere carried out to investigate NH4^＋-N removal case and NO2^--N accumulation case under the conditions of different p H values（ 6. 0,6. 5,7. 0,7. 5,8. 0,8. 5） and different CODconcentrations（ 50 mg / L,100 mg / L,150 mg / L,200 mg / L,250 mg / L）. Results show that under present experimental conditions,w hen p H values are 7. 5 ~ 8. 0 and ρ（ COD） 〈150 mg / L,an ideal nitrosation effect is obtained by SBR reactor. The NH4^＋- N removal rate and NO2^-- N accumulation rate maintain 90% and 75%,respectively. Conclusion is that the p H value of alkaline is conducive to achieve higher concentration of NO2^-- N accumulation. When the appropriate amount of organic carbon exists in the w ater,the reaction of nitrosification matching to ANAM M OX can be proceeded normally,but the organic carbon concentration is too high,w hich can inhibit the grow th and reproduction of the nitrosated bacterial obviously.

关 键 词：匹配厌氧氨氧化的亚硝化 SBR PH值 有机碳源 

分 类 号：X703[环境科学与工程—环境工程]