微生物固定化塔滤池在土地处理系统中的预处理  

Pretreatment of land treatment system with microorganism immobilized tower filter tank

作　　者：翟为民[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710065

出　　处：《长安大学学报（自然科学版）》2013年第2期107-110,共4页Journal of Chang’an University(Natural Science Edition)

摘　　要：在土地处理系统前设置装填有纳米凹凸棒土复合亲水性聚氨酯泡沫的塔式生物滤池,形成新型处理系统,对生活污水进行处理,并对塔式生物滤池和新型处理系统的处理效果进行了研究。结果表明:塔滤池的最佳运行工况为水力停留时间60min,回流比75%,该条件下CODcr和NH3-N的去除率分别为78.22%和98.67%;将塔滤池设置在土地处理系统前,可以改善基质堵塞的问题,大大提高了处理效果,CODcr和NH3-N的去除率由72.24%和32.81%提高到95.57%和96.69%,出水CODcr和NH3-N分别达到《地表水环境质量标准》(GB 3838—2002)V类水标准和《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准要求。The tower bio-filter tank filled with nano-attapulgite composite hydrophilic polyure- thane foam was set before the land treatment system to form a new treatment system to deal with domestic sewage. The treating effects of tower bio-filter tank and new treatment system were studied. The results show that the optimal operation condition of HRT is 60 min water stay and 75~ of return ratio, and under this condition the removal rate of CODcr and NH3-N is 78.22~ and 98.67~ respectively. When the tower is set before the land treatment system, the blocking up will be decreased and the effects are better, and the removal rate of CODcr and NH3-N is in- creased from 72.24~ and 32.81~ to 95.97~ and 96.69~ respectively. The effluent of CODcr meets the Surface Water Environment Quality Standard （GB 3838--2002） V level standard, and the effluent of NH3-N meets the national Urban Sewage Treatment Plant Emission Standards （GB 18918-2002） A standard. 1 tab, 7 figs, 10 refs.

关 键 词：环境工程 微生物固定化技术 塔式生物滤池 土地处理系统 

分 类 号：X703[环境科学与工程—环境工程]