摘要
采用以页岩陶粒为载体的曝气生物滤池(BAF)为反应器,研究了BAF运行中总有机碳和NH+4-N浓度沿滤层变化的规律,以及对硝化作用的影响。结果显示,在进行污水深度处理时,在BAF前段TOC的去除率占滤池总去除率的72.3%～100%;NH+4-N的去除率占滤池总去除率的91.8%～100%。碳化与硝化作用并存于BAF中,硝化作用随滤层加深而加强。水质和BAF滤料的结构特点是影响碳化与硝化作用的主要因素。
The paper aims to present the author＇s study on the characteristics of degradation of total organic carbon （TOC） amount and the ammonia （NH^4＋ -N ） affecting the nitrification and the performance of BAF process. In the research, we have used a kind of biological aerated filter （BAF） by taking shale ceramic granule as a cartier. The results show that： （1） at the forepart of BAF, the removal rate of TOC is 31.6% ～ 63.1%, which is 72.3% ～ 100% of total removal rate of TOC in BAF, and the removal rate of NH4^＋ -N is 91.8% ～ 100% of total removal rate of BAF; （2） there exist carbon oxidation and the nitrification simultaneously in BAF. The results also suggest that the input of water quantity and quality as well as the characteristics of the media prove to be the main factors that affect the carbon oxidation and nitrification.
出处
《安全与环境学报》
CAS
CSCD
2005年第4期33-35,共3页
Journal of Safety and Environment
基金
国家高技术研究发展计划(863)项目(2003AA601010)
