摘要
：采用智能控制高温好氧生物发酵工艺（CTB工艺）对脱水城市污泥进行生物干化处理，使污泥的含水率从80％降到45％，并且干化后物料的热值比原污泥增加了2．7％～14．0％。若用于焚烧，可使系统的净能量由干化前的亏损状态提高到4500kJ／kg以上，污泥的挥发性固体含量与热值呈显著正相关。从能量平衡的角度考虑，采用生物干化工艺处理脱水污泥，提高了焚烧过程的净能量，解决了脱水污泥直接焚烧的能量亏损问题。
The control technology for biocomposting （CTB） was used for bio-drying treatment of dewatered sewage sludge to decrease water content from 80% to 45% , the calorific value of dried sam- ples is increased by 2.7% to 14.0% , and the net energy of combustion system is increased from a loss state to more than 4 500 kJ/kg. There is a significant positive correlation between the volatile solid con- tent and calorific value of sewage sludge. By considering the energy balance, the bio-drying process for treatment of dewatered sludge can improve the net energy of combustion system and solve the problem of energy loss from direct incineration of dewatered sludge.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第19期103-105,共3页
China Water & Wastewater
基金
国家科技支撑计划项目(2007BAD87B01)
北京市科技计划项目(Z09040900930903)
