牡蛎壳填料曝气生物滤池去除水源水中的氨氮  

Simulation Study on Removal of Ammonia Nitrogen from Source Water with Oyster Shell by Biological Aerated Filter

作　　者：苏兵[1] 段金明[1,2] 方宏达[1,2] 郑斌全 许东升[1] 

机构地区：[1]集美大学生物工程学院,福建厦门361021 [2]集美大学环境工程研究所,福建厦门361021

出　　处：《集美大学学报（自然科学版）》2014年第2期95-99,共5页Journal of Jimei University：Natural Science

基　　金：福建省科技计划项目(2013N5008);福建省教育厅资助项目(JA10194);集美大学创新团队基金资助项目(2010A007);福建省大学生创新性实验计划项目(Z81128)

摘　　要：采用以牡蛎壳为填料的内循环曝气生物滤池,对模拟水源水中氨氮进行处理,考察了水力停留时间、曝气量、pH值等因素对氨氮去除效果的影响.结果表明,该系统在水力停留时间为4h,曝气量为2.0 L/min,pH=7.5～8.0的最佳条件下,对氨氮的去除率达到90％以上,出水氨氮浓度达到《地表水环境质量标准》（GB 3838-2002）中Ⅱ类水体的水质标准.可见,牡蛎壳是一种较好的曝气生物滤池填料,内循环可以显著提高曝气生物滤池脱氮效果.Internal Circulation Biological Aerated Filter （ICBAF） with oyster shell as the filler was em- ployed for the treatment of ammonia nitrogen from simulated source water. The experiments were carried out to investigate the effect of hydraulic retention time （HRT）, aeration rate and pH on the removal efficiency of ammonia-nitrogen. Results showed that oyster shells were good carriers in the ICBAF reactor, and the removal efficiency of ammonia-nitrogen was significantly enhanced by effluent recirculation. The optimal condition was HRT of 4 h, aeration rate of 2. 0 L/min at pH 7.5 - 8.0, and the removal efficiency of ammonia-nitrogen reached higher than 90 %. The quality of the effluent reached the case II category surface water according to the standard GB 3838--2002.

关 键 词：牡蛎壳 内循环曝气生物滤池 水源水 氨氮 

分 类 号：X703[环境科学与工程—环境工程]