亚硝态氮对缺氧氨氧化的影响  

Influence of Nitrite-Nitrogen on the Hypoxia Ammonia Oxidation

作　　者：傅金祥[1] 刘守勇[1] 张羽[1] 合姣姣[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）》2010年第6期1186-1189,共4页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家中小企业技术创新基金项目(06C2621200105);沈阳建筑大学省级重点实验室开放基金项目(HJ-200604)

摘　　要：目的探讨了亚硝态氮质量浓度对缺氧氨氧化影响及缺氧氨氧化反应实质.方法采用模拟废水对3个稳定运行缺氧氨氧化生物滤池,进行静态试验.结果3个缺氧氨氧化生物滤池,缺氧氨氧化菌生物量分别为1.49 g/L、2.07 g/L和1.80 g/L,最大缺氧氨氧化反应速率分别为4.25 mmol/(L.d)、5.06 mmol/(L.d)和4.41 mmol/(L.d),对应亚硝态氮抑制质量浓度分别为100 mg/L、140 mg/L、110 mg/L.结论亚硝态氮质量浓度的增加有利于加快缺氧氨氧化反应速率,反应速率达到最大值后,反而下降,显示出一定的抑制作用;亚硝态氮抑制浓度与缺氧氨氧化菌生物量有关,缺氧氨氧化菌生物量越大,亚硝态氮抑制浓度越高.The paper aims to discuss the influence of the mass concentrition of nitrite-nitrogen on the hypoxia ammonia oxidation and it also discusses the essence of the hypoxia ammonia oxidation reaction.The static test is carried out on the three stable operation biological filters of hypoxia ammonia oxidation with the artifical wastewater.The biomass of hypoxia ammonia oxidation bacteria are 1.49 g/L、2.07 g/L and 1.80 g/L respectively,and the maximum reaction rate of hypoxia ammonia oxidation are 4.25 mmol/（L·d） 、 5.06 mmol/（L·d） and 4.41 mmol/（L·d） respectively,with the corresponding inhibitory concentrations of ni-trite-nitrogen of 100 mg/L、140 mg/L、110 mg/L for each case.The result shows that the increasing concentration of nitrite-nitrogen cause as the rate of hypoxia ammonia oxidation speeding up.When the reaction rate rea-ches the maximum,it begins to decrease,which indicates inhibition to some degree.The inhibitory concentration of nitrite-nitrogen is related to the biomass of hypoxia ammonia oxidation bacteria,and the greater the biomass of hypoxia ammonia oxidation bacteria is,the higher the inhibitory concentration of Nitrate-nitrogen becomes.

关 键 词：亚硝态氮 缺氧氨氧化 生物滤池 生物量 抑制浓度 

分 类 号：X703[环境科学与工程—环境工程]