摘要
在活性污泥系统采用超声波处理剩余污泥以考察污泥减量效果及其对系统处理效果的影响.结果表明：在声能密度0.25～0.50 W/mL范围内,经过1～30 min的超声波处理,系统表观产率显著下降,剩余污泥的产量可以减少20%～50%左右.同时发现,污泥的沉降性能指标SVI有所下降,而污泥的稳定性有所提高,活性污泥系统的出水水质略有不同程度的下降.
Ultrasonic was used for reducing excess sludge production in this research. Meanwhile the influence on treatment efficiency of the activated sludge system was observed. The results showed that the observed yield declined distinctly and excess sludge production can be reduced about 20% -50% after 1 -30 min of ul- trasonic treatment with power level 0.25 -0.5 W/mL. The property of sludge settling （SVI） declined, and the stability of sludge increased. At the same time, the effluent quality also declined a little bit.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2006年第6期85-88,共4页
Techniques and Equipment for Environmental Pollution Control
基金
北京市教育委员会科技发展项目(2002KJ-64)
关键词
超声波
污泥减量
表观产率
处理效果
活性污泥系统
ultrasonic
sludge reduction
observed yield
treatment effect
activated sludge system
