NO_2^-/NH_4^+比对煤气化废水厌氧段处理效能影响  

Effect of NO_2^-/NH_4^+ Ratio on Anaerobic Treatment of Coal Gasification Wastewater

作　　者：杨世东[1] 廖路花 

机构地区：[1]东北电力大学建筑工程学院,吉林132012 [2]广西建设职业技术学院,南宁530007

出　　处：《硅酸盐通报》2016年第8期2647-2653,共7页Bulletin of the Chinese Ceramic Society

基　　金：吉林省科技厅自然科学基金项目(2015010190JC);吉林省科技发展计划项目(20130206006SF)

摘　　要：进水稀释配比R为75%的条件下,研究了厌氧氨氧化与反硝化的耦合作用。进水氨氮为(140±5)mg/L,COD为(900±5)mg/L,通过改变厌氧反应器中亚硝酸盐氮与氨氮的质量浓度比(化学计量比),以考察不同亚硝态氮浓度对厌氧段总氮与有机物的去除效果。实验结果表明,在化学计量比为1.6的条件下,TN去除率高达73.58%,COD去除率为81.61%。结果表明,合适的化学计量比,可以强化厌氧氨氧化与反硝化的协同作用,提高系统的脱氮除碳效能。The effect of anammox coupling with heterotrophic denitrification process was investigated in an anaerobic reactor with the influent dilution ratio at 75%. With an influent dilution ratio of 75%, the effects of different concentrations of nitrite on total nitrogen and organic matter removal were studied by changing NO2^-/NH4^ （ stoichiometric ratio） ratio the anaerobic reactor with the ammonia concentration of （140 ± 5） mg/L and COD of （900 ± 5） mg/L. The TN and COD were 73.58%, 81.61%, respectively, with a NO2^-/NH4^＋ ratio of 1.6. The optimum stoichiometric ratio can enhance anaerobic ammonium oxidation and denitrification, improving the removal efficiency of nitrogen carbon simultaneously.

关 键 词：煤气化废水 厌氧氨氧化 反硝化 化学计量比 脱氮除碳 

分 类 号：X703[环境科学与工程—环境工程]