高氮废水分段进水A/O工艺脱氮效果研究  

Research on multi-stage anoxic/oxic process treating high-nitrogen wastewater

作　　者：王睿[1] 何锡辉[1] 刘恒豪 

机构地区：[1]西华大学理学院,四川成都610039

出　　处：《应用化工》2016年第11期2193-2195,2200,共4页Applied Chemical Industry

基　　金：四川省创新创业训练计划项目资助(201410623037)

摘　　要：采用5段进水A/O工艺处理高氮废水,进行了小试试验研究,试验时采用自配的高氮废水作为进水原料,考察分水比、回流比对每段出水氨氮、硝氮和总氮去除率的影响。结果表明:1Ⅰ、Ⅱ段由于进水中有机物含量较高,反硝化反应不完全,造成出水中氨氮及硝氮含量较高,后续段数随着污水有机物含量的降低,出水中氨氮及硝氮去除效果愈加明显;2该工艺中氨氮的去除主要是通过硝化细菌的硝化作用完成,且污泥有机负荷越小,氨氮去除效果越明显;3经5段进水A/O工艺处理后,出水可满足GB 18918—2002的一级B排放标准。研究结果可为国内外广泛推广生物脱氮除磷技术提供理论基础。To treatment the high nitrogen wastewater when use five sections anoxic /oxic process ,when ex-periment ,use self-nitrogen waste water as raw material ,then analyzed the content and removal of ammo-nia,nitrate and total nitrogen when influent and effluent of each section .The result shows：①due to the high organic content in water of sectionⅠand Ⅱ, denitrification reaction was incomplete , Resulting in a higher ammonia and nitrate in high content when effluent ,As the organic content in the sewage reduced , the effluent of ammonia and nitrate removal even more obvious in followed section;②The removing of am-monia is mainly done through nitrification nitrobacteria in process ,the smaller Sludge and organic load , the effect of ammonia removal is more obvious;③process divided into five sections ,effluent water can be full GB 18918—2002 requirements of a Bemission standards .The research results can provide theoretical basis for widely spread biological nitrogen and phosphorus removal technology at home and abroad .

关 键 词：分段进水 高氮废水 脱氮 

分 类 号：TQ064[化学工程]