新型填料复合多级MBBR工艺脱氮及污泥减量研究  

Study on nitrogen removal and sludge reduction in a new type of filler composite multistage MBBR process

作　　者：刘永红[1] 李妙婕 杨谨如 王宁[1] 李耀中 Liu Yonghong;Li Miaojie;Yang Jinru;Wang Ning;Li Yaozhong(College of Environment and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院

出　　处：《工业水处理》2020年第3期102-106,共5页Industrial Water Treatment

基　　金：国家自然科学基金(21176197);陕西省水利厅科技计划项目(2017slkj-9);陕西省创新能力支撑计划项目(2019HBGC-34);陕西省教育厅专项科学研究计划项目(19JK0370);石狮市科技公共服务平台产学研项目003

摘　　要：采用两种新型生物填料AMC和PBG复合多级MBBR工艺对某高校生活污水进行处理,研究该工艺对COD和NH4+-N的处理效果,并通过填料表征污泥微生物的变化,同时对污泥产量进行衡算,评价该工艺污泥减量化处理效果。研究结果表明:系统在容积负荷1.5 kgCOD/(m^3·d)下连续运行20 d,对COD和NH4^+-N的去除率分别达到82%和97%;载体表面和内部负载大量球菌、丝状菌,极大提高了系统内的污泥微生物保有量和微生物多样性;污泥产率仅为0.043 kgMLSS/kgCOD,具有明显的污泥减量效果。Combined with two kinds of new bio-filler AMC(anaerobic microorganism carrier) and PBG(porous biogel), the multi-stage MBBR process were used to treat domestic sewage in a university. The treatment effect of COD and NH4+-N was studied,and the change of sludge microorganisms was characterized through the filler. Meanwhile,the sludge yield was calculated and the effect of sludge reduction treatment was evaluated. The results show that:when the system was continuously operated for 20 days with a volumetric load of 1.5 kgCOD/(m^3·d),and the removal rates of COD and NH4^+-N were 82% and 97%,respectively. The carrier surface and internal load were loaded with a large amount of cocci and filamentous,which greatly improved the microbial biomass and microbial diversity in the system.The sludge yield was only 0.043 kgMLSS/kgCOD,which had obvious sludge reduction effect.

关 键 词：新型填料 MBBR工艺 生活污水 脱氮 污泥减量 

分 类 号：X703[环境科学与工程—环境工程]