生物膜法处理低碳高氮污水的试验研究  

Study on Treatment of Low Carbon Source-High Nitrogen Concentration Wastewater by Biofilm Process

作　　者：周恺 孙文芳 张士兵 

机构地区：[1]上海辐达环保技术有限公司,上海200065

出　　处：《环境科学与管理》2011年第1期110-111,125,共3页Environmental Science and Management

摘　　要：文章采用生物膜法进行对低碳氮比的污水模拟研究,通过调节反应池的各种条件如水力停留时间,进水的碳氮比等考察生物膜法对低碳高氮污水的脱氮能力。在本试验所考察的工况中,系统进水停留时间为15小时,原水C/N为5:1,低氧反应池与好氧反应池进水比为1:1的工况有较好的脱氮效果,改善了出水水质,对城市污水深度脱氮具有参考价值,有良好的应用前景。There is no effective, stable and energy saving method to removal of the nitrogen from the municipal sewage with the low carbon sourcehigh nitrogen concentration, such as the munisipal secondary effluent. In this study, the biofilm process was applied to treat such kind of wastewater. The capability of denitrification for low carbon source - high nitrogen concentration wastewater by biofilm process was investigated by changing the reaction conditions such as HRT, C/N etc. In this study, under the conditions of the HRT 15 hours, C/N of wastewater 5 ： 1 and the intluent ratio of the low oxygen level reactor to aerobic reactor 1 ： 1, better nitrogen removals were achieved. As mentioned above, better results of denitrification were obtained in such treatment process and water quality was improved, which may be helpful to the denitrification for the municipal secondary effluent and beneficial to industrial application.

关 键 词：生物膜法 低碳氮比 水力停留时间 脱氮 

分 类 号：X703.1[环境科学与工程—环境工程]