环境工程学报2012，Vol.6Issue(7)：2422-2426,5.
热处理对脱水污泥溶解特性及厌氧消化性能的影响
Effect of thermal pretreatment on dissolution and anaerobic digestion performance of dewatered sludge
摘要
Abstract
The effect of thermal pretreatment on the dissolution and anaerobic biodegradation of dewatered sludge was investigated. Results showed that after pretreatment at 100℃ , 130℃ and 170℃ , COD dissolving rati- os were improved from 5.23% of untreated sludge to 20.08% , 22.50% and 27.20% , respectively. Thermal pretreatment showed similar effect on the dissolution of dewatered sludge and traditional low solid sludge （total solid 〈 5% ）. Moreover, pretreatments at 130℃ for 2 h and 170℃ for 30 rain significantly enhanced the per- formance of anaerobic digestion. The methane yields were 24.64% and 38.61% higher than that of untreated sludge, respectively, while the methane contents of biogas were slightly decreased compared with that of untreat- ed dewatered sludge.关键词
脱水污泥/热处理/溶解性COD/挥发性脂肪酸/甲烷产率Key words
dewatered sludge/thermal pretreatment/soluble COD/VFA/methane yield分类
资源环境引用本文复制引用
沙超,段妮娜,董滨,戴翎翎,戴晓虎..热处理对脱水污泥溶解特性及厌氧消化性能的影响[J].环境工程学报,2012,6(7):2422-2426,5.基金项目
“十一五”国家科技支撑计划项目 （）
国家“水体污染控制与治理”科技重大专项 （）
