净水技术2018，Vol.37Issue(2)：74-80,7.DOI:10.15890/j.cnki.jsjs.2018.02.013
脱水污泥两相厌氧消化系统的启动试验
Start-Up Experiment of Two-Phase Anaerobic Digestion System for Dewatered Sludge
刘毅 1高洋 1田玉斌 1杨宏1
作者信息
- 1. 北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京100124
- 折叠
摘要
Abstract
Two-phase anaerobic digestion start-up experiment on 19.73％ solid-content dewatered sludge from a reclaimed water plant in Beijing was discussed.The experiment in acidogenic phase used dewatered sludge as object,which inoculated with acid producing strain.The experiment in methanogenic phase was started with methane producing strain which solid content was 1.38％,and then the acidified sludge with high solid content was added as substrate,until the solid content raised to 10％,this was to avoid the accumulation of VFAs.The results showed that the process of hydrolysis and acidification of dewatered sludge was fast.The concentrations of SCOD,VFAs and ammonia nitrogen reached about 80％ of the maximum output in the 4th to 6th days,then the reaction speed became slow.The start-up solution with low-solid-content material in methanogenic phase was successful,the gas production was 20 ～ 23 m3 biogas/m3 sludge when the solid content reached 10％,the highest daily gas production reached 3 467 mL/d,the highest methane content reached 59.46％.关键词
厌氧消化/脱水污泥/两相/高含固率/启动试验Key words
anaerobic digestion/dewatered sludge/two-phase/high solid content/start-up experiment分类
建筑与水利引用本文复制引用
刘毅,高洋,田玉斌,杨宏..脱水污泥两相厌氧消化系统的启动试验[J].净水技术,2018,37(2):74-80,7.
