摘要
利用毛管逆滤渗装置处理生活污水,研究变温下土地滤渗系统的污水处理效率。结果表明:温度越高,过滤速度越快;COD去除率(RRC)在室温(25～30℃)系统最高,5℃其次,35℃最低;进水浓度C0与RRC二次相关,三种温度下的RRC分别在C0为269、294和286mg/L处达到最高;用一阶降解模型可以很好地描述COD降解过程,且降解常数KT与温度T呈指数递增关系。
The efficiency of sewage treatment was studied at different temperature by Reversed Capillary Filtration Reactor （RCFR） for the treatment of domestic wastewater. The results showed that the higher the temperature, the quicker the filter rate; COD removal rate in the system was the highest at room temperature（25 -30 ℃ ）, that at 5 ℃ came to the second and that at 35 ℃ was the lowest; the influent concentration Co was correlative secondarily to COD removal rate; COD removal rates at these three temperature were the highest when Co being 269mg/L, 294mg/L and 286mg/L respectively. One-order degradation model can be used well to describe the dynamic processes of COD degradation and degradation rate Kτincreases exponentially with temperature.
出处
《水处理技术》
CAS
CSCD
北大核心
2006年第12期40-43,共4页
Technology of Water Treatment
基金
黄土高原土壤侵蚀与旱地农业国家重点实验室开放基金(10501-129)
湖南省自然科学基金(03JJY6021)
关键词
生活污水
土地滤渗系统
COD
温度
domestic wastewater
land infiltration system
COD
temperature
