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生物活性滤池的特性研究
Study on Bio-Activated Carbon Filter
【摘要】 以南方某市水厂的沉淀池出水为对象 ,研究生物活性滤池的去除特性和机理。结果表明 :①生物活性滤池出水无异味 ,浊度低于 0 5NTU ,氨氮、亚硝酸盐氮去除率均达 90 %以上 ,CODMn后期去除率稳定在 2 0 %左右 ;②运行初期 ,活性滤料的物理吸附占主导地位。正常运行后 ,是活性滤料的吸附及其上生物膜的降解、粘附絮凝等共同发挥作用 ;③反冲洗有利于生物膜保持较高的活性和活性滤料吸附性能的发挥。
【Abstract】 The pollutant removing character and working principle of biological active filter (BAF) were investigated in a waterworks in south China. The results show that the quality of the output water is better than that of ordinary sand filter; it has turbidity less than 0.5 NTU and without any abominable smell. The removal ratios of both ammonia nitrogen and nitrite exceed 90% and the removal of COD is stable around 20% at the later period of experiment. In the initial stage of operation, the activated carbon adsorption dominates and when the experiment runs into normal operation besides the adsorption on activated filtrating media also the biological degradation, flocculation and adhesion of microbial groups in the biological membrane on the filtrating media come upon in role. The efficiency of BAF could be improved by backwashing.
- 【文献出处】 给水排水 ,Water & Wastewater Engineering , 编辑部邮箱 ,2001年05期
- 【分类号】TU991.24
- 【被引频次】31
- 【下载频次】206