黄水的亚硝化/厌氧氨氧化处理效果研究  

Treatment Effect of Yellow Water by Nitrosation/Anaerobic Ammonium Oxidation Process

作　　者：黄拓 郑敏[1,2] 李继云 汪诚文[1] HUANG Tuo;ZHENG Min;LI Ji-yun;WANG Cheng-wen(School of Environment,Tsinghua University,Beijing 100084,China;Advanced Water Management Centre,University of Queensland,Australia)

机构地区：[1]清华大学环境学院,北京100084 [2]昆士兰大学高等水管理研究中心,澳大利亚

出　　处：《中国给水排水》2019年第21期1-5,10,共6页China Water & Wastewater

摘　　要：采用亚硝化/厌氧氨氧化组合工艺处理源分离黄水,通过接种好氧MBR池污泥、以稀释的腐熟黄水为进水在9 d后成功启动亚硝化反应器,出水亚硝态氮积累率达到(97.7±1.1)%,出水NOf-N/NH4+-N值为1.09±0.08;分析亚硝化反应器在典型周期的运行特征发现,反应器内可形成高浓度的游离氨(FA)和游离亚硝酸(FNA),对NOB活性产生联合抑制作用。另外,考察了厌氧氨氧化反应器的启动运行效果,并进一步对其进行运行优化,发现进水p H值和氮容积负荷是影响厌氧氨氧化处理效果的关键因素,当厌氧氨氧化反应器进水p H值约为7.6、氮容积负荷为1.0 kg/(m3•d)时,该组合工艺对源分离黄水的总氮去除率可达到70%。A combined process of nitrosation and anaerobic ammonium oxidation was used to treat source-separated yellow water.The nitrosation reactor was successfully started up within 9 days through inoculation of the sewage sludge from an aerobic MBR and feeding diluted decayed yellow water,in which nitrite accumulation rate of the effluent reached(97.7±1.1)%and the effluent NOf-N/NH4+-N ratio was 1.09±0.08.Operating characteristics of the nitrosation reactor in a typical operational cycle was analyzed,and it was found that high concentration of FA and FNA formed in the nitrosation reactor had a combined inhibitory effect on NOB activity.In addition,the start-up and operation of anaerobic ammonium oxidation process were investigated,and the optimization of the anaerobic ammonium oxidation process was further carried out.It was found that pH and nitrogen volumetric load of the influent were the key factors affecting the treatment effect of the anaerobic ammonium oxidation.When the influent pH of the ammonia oxidation reactor was about 7.6 and the nitrogen volumetric load was 1.0 kg/(m3•d),the removal rate of total nitrogen in the source-separated yellow water by the combined process could reach 70%.

关 键 词：黄水 亚硝化 厌氧氨氧化 启动 氮容积负荷 PH值 

分 类 号：TU992[建筑科学—市政工程]