低温条件下生物陶粒反应器运行特性研究  

Performance of Bio-ceramic Reactor at Low Temperature

作　　者：桑军强[1] 王占生[2] 

机构地区：[1]清华大学深圳研究生院环境工程与管理研究中心,深圳518057 [2]清华大学环境科学与工程系,100084

出　　处：《环境科学》2003年第2期112-115,共4页Environmental Science

基　　金：科技部;水利部重大科技项目 ;北京市"二四八"重大科技项目 (95 5 0 6 10 4 0 0 0 5 0 3)

摘　　要：针对官厅水库下游三家店水库水源进行生物陶粒预处理的现场试验 ,研究低温条件下生物陶粒反应器的运行效果及其特性 .结果表明 :当水温从 1 0℃下降到 0 5℃时 ,生物陶粒反应器对CODMn的去除率从 2 0 %左右下降到 6%左右 ,氨氮的去除率从 90 %下降到 65 %.随温度降低生物陶粒反应器去除污染物的效果下降主要是由于微生物活性随温度的降低而下降造成的 ,陶粒表面的微生物量随温度的降低而减少 ,但是受影响的程度比活性小得多 .A bio ceramic reactor for slightly polluted source water from Guanting Reservoir in Beijing was conducted at low temperature. It was shown that the removal rate of COD Mn and NH + 4 N decreased from 20% to 6%, 90% to 65% respectively when the temperature fell from 10℃ to 0 5℃. The main factor affecting the efficiency of bio ceramic reactor was the microbial activity which decreased more than the biomass when the temperature dropped. Microbial activity and biomass in the bio ceramic reactor were in a regular pattern of gradient distribution from the lower to the upper along the direction of raw water flow.

关 键 词：生物陶粒 生物预处理 微污染水源水 耗氧速率 微生物量 

分 类 号：TU991.2[建筑科学—市政工程]