MBBR处理某水厂微污染水硝化性能研究  

Study on Nitrification Performance of MBBR Process in Treatment of Micro Polluted Water

作　　者：周正兴 孙晓阳 吴迪 杨娜 韩文杰 周传庭 ZHOU Zhengxing;SUN Xiaoyang;WU Di;YANG Na;HAN Wenjie;ZHOU Chuanting(The Water Company of Yancheng,Yancheng 224001,China;Qingdao Spring Water Treatment Co.,Ltd,Qingdao 266555,China;Tinghu District Drinking Water Safety Engineering Pretreatment Plant of Beijing Jiu'An Construction Investment Group Co.,Ltd,Yancheng 224001,China;Shanghai Urban Construction Design and Research,Institute,Shonghoi 200125,China)

机构地区：[1]盐城市自来水公司,江苏盐城224001 [2]青岛思普润水处理股份有限公司,山东青岛266555 [3]北京久安建设投资集团有限公司亭湖区饮用水安全工程预处理厂,江苏盐城224001 [4]海市城市建设设计研究总院(集团)有限公司,上海200125

出　　处：《水处理技术》2020年第8期121-125,共5页Technology of Water Treatment

基　　金：水体污染控制与治理科技重大专项(2017ZX07106005);青岛市民生科技计划项目(18-6-1-100-nsh)。

摘　　要：对移动床生物膜反应器(MBBR)工艺应用于河道微污染水进行了研究,生化段采用"6段式MBBR生物氧化池"的处理工艺。结果表明,NH4+-N、COD去除率分别达到57.43%、20.27%,出水水质稳定达到GB 3838-2002地表水Ⅲ类标准,且同步硝化反硝化(SND)脱氮占比7.97%。对悬浮载体进行高NH4+-N含量(质量浓度7 mg/L)水质硝化实验,最大NH4+-N容积负荷65 g/(m^3·d)。MBBR悬浮载体生物膜硝化优势菌门为Proteobacteria,相对丰度平均为55.40%,反硝化细菌相对丰度平均为13.36%,为系统SND现象提供微观证明,系统中存在较高丰度可降解难降解有机物的菌属,为微污染水出水COD稳定达标提供了保障。MBBR工艺占地小,可筛选和专性富集微生物,适用于处理微污染水体。The application of the moving bed biofilm reactor (MBBR) process to the micro-polluted water in the river was studied,and the biological tank adopted the treatment process of’six-stage MBBR biological oxidation’.The results showed that,the NH4+-N and COD removal rates reached 57.43%and 20.27%respectively,the effluent quality reached the surface water class Ⅲ standard of GB 3838-2002,and the simultaneous nitrification and denitrification (SND) ratio was 7.97%.Nitrification test of high NH4+-N content (mass concentration was 7 mg/L) for suspended carrier was carried out,and the maximum NH4+-N volume load was 65 g/(m^3·d).Proteobacteria was the dominant phylum in the biofilm of the suspended carrier,with an average relative abundance of 55.40%,the average relative abundance of denitrifying bacteria was 13.36%,which provided a microscopic guarantee for the occurrence of the SND.The system had a high abundance of bacteria that could degrade the refractory organic matter,which provided a guarantee for the stable COD of micro polluted water to reach the standard.MBBR process occupies less space,it can be screened and specialized for enrichment of microorganisms,and is suitable for treating micro-polluted water.

关 键 词：预处理 移动床生物膜反应器(MBBR) 低氨氮微污染水 硝化 悬浮载体 菌群富集 

分 类 号：TQ028.8[化学工程] X703.1[环境科学与工程—环境工程]