玉米芯固体碳源生物膜SND处理低碳源污水  

SND Treatment of Low-carbon Source Sewage with Corncob Solid Carbon Source Biofilm

作　　者：王登敏 张立秋[1,2] 李淑更 何培芬[1,2] 吕玮 胡雪柳 雷志娟 WANG Dengmin; ZHANG Liqiu; LI Shugeng;; HE Peifen; LYU Wei; HU Xueliu; LEI Zhijuan;(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China; School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China; Key Laboratory for Water Quality and Conservation of the Pearl River Delta of Ministry of Education, Guangzhou 510006, China)

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]珠江三角洲水质安全与保护教育部重点实验室,广东广州510006 [3]广州大学环境科学与工程学院,广东广州510006

出　　处：《环境科学与技术》2018年第10期99-104,共6页Environmental Science & Technology

基　　金：国家自然科学基金项目(51478127;51708140);广州市科技计划项目(201510010051);广州大学研究生创新研究资助计划(2017GDJCM42)

摘　　要：采用玉米芯填料固体碳源生物膜反应器,应用同步硝化反硝化(SND)技术处理低碳氮比城市污水,考察了固体碳源生物膜反应器的SND启动及不同溶解氧(DO)、进水p H值对系统脱氮效果的影响。结果表明,系统运行23 d后TN平均去除率达到89.11%,反应器实现了SND启动,在DO为4.0 mg/L,进水pH为8.0的条件下,脱氮效果最佳,总氮(TN)平均去除率可达91.98%。可见玉米芯是一种较好的固体碳源生物膜反应器填料,在适当的反应条件下,可以很好地实现SND,适合低碳氮比城市污水的脱氮处理。A solid carbon source biofilm reactor with corncob as filler was used to treat low C/N ratio wastewater by simultaneous nitrification and denitrification （SND） technology. The effects of different dissolved oxygen （DO）, the impact of influent pH on the system of nitrogen removal were investigated. The results showed that the system started membrane hanging after 23 days. Under the optimum conditions of DO of 4.0 mg/L and influent pH of 8.0, the denitrification effect will be the best, with average total nitrogen （TN） removal rate up to 91.98%, which indicated that corncob is a good solid carbon source biofilm reactor packing, under the appropriate reaction conditions, SND can be well achieved, suitable for low carbon and nitrogen denitrification in sewage treatment.

关 键 词：固体碳源 SND DO pH 

分 类 号：X703.1[环境科学与工程—环境工程]