摘要
采用一个9.9 L的厌氧折流板反应器处理低浓度废水(COD500 mg/L左右),研究了低温对反应器运行性能的影响.结果表明,温度从35℃下降至20℃对ABR的处理效率没有明显的影响,COD去除率仅下降了3%.各隔室的VFA均上升,前面隔室中上升幅度更大.当温度从20℃下降至15℃时,产氢产乙酸菌和产甲烷菌等受到较大影响,在13 d的时间内COD去除率下降了近一半,降至40%～60%.
A lab-scale experiment was carried out to investigate the influence of low temperature on the operation characteristics of a 9.9 L anaerobic baffled reactor（ABR） treating low strength wastewater（about 500 mg CODL）. The results indicated that a decrease in temperature from 35℃ to 20℃ resulted in no significant drop in COD removal. The efficiency decreased only 3%. However, the activities of hydrogen-producing acetogenic bacteria and methanogens were affected severely when the temperature decreased to 15℃. The COD removal efficiency decreased by half in 13 d.
出处
《安全与环境工程》
CAS
2005年第3期52-54,59,共4页
Safety and Environmental Engineering
基金
湖北省废物地质处理与环境保护重点实验室项目(HBWDEP-200310)
湖北大学人才专项经费资助项目。
关键词
厌氧折流板反应器
低浓度废水
低温
运行特性
anaerobic bassled reasctor
low strength wastewater
low temperature
operation characteristics
