Microwave thermal pretreatment of sewage sludge
首发时间:2006-02-28
Abstract:Water could absorb microwave and increase temperature rapidly within short time. Municipal wastewater treatment plant sewage sludge was used to be heated by microwave digestion reactor. Sludge total solid content (TS) was 2%, 4% and 5%. Microwave heating temperature was 150℃, 170℃ and 190℃, reaction time was 5 minutes. Results show that temperature rising trend from ambient to three specified temperature was similar. Colloid structure was destroyed to release soluble organic components. Dewaterability and settling performance were improved. TS and suspended solid content (SS) reduced. High temperature resulted high SS dissolving ratio. For TS 2% sludge, at 190℃ 40.0% of SS dissolved.
keywords: microwave, thermal pretreatment, sewage sludge
点击查看论文中文信息
Microwave thermal pretreatment of sewage sludge
摘要:Water could absorb microwave and increase temperature rapidly within short time. Municipal wastewater treatment plant sewage sludge was used to be heated by microwave digestion reactor. Sludge total solid content (TS) was 2%, 4% and 5%. Microwave heating temperature was 150℃, 170℃ and 190℃, reaction time was 5 minutes. Results show that temperature rising trend from ambient to three specified temperature was similar. Colloid structure was destroyed to release soluble organic components. Dewaterability and settling performance were improved. TS and suspended solid content (SS) reduced. High temperature resulted high SS dissolving ratio. For TS 2% sludge, at 190℃ 40.0% of SS dissolved.
论文图表:
引用
No.5441510101141100****
同行评议
共计0人参与
勘误表
Microwave thermal pretreatment of sewage sludge
评论
全部评论0/1000