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.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
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)
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
coal gasification wastewater
anaerobic ammonium oxidation
denitrification
stoichiometric ratio
removal of carbon and nitrogen
