CSTR反应器厌氧消化餐厨垃圾启动过程的监控  

Start-up Monitoring of CSTR for Anaerobic Digestion of Food Waste

作　　者：梅冰[1] 彭绪亚[1] 王璐[1] 贾传兴[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045

出　　处：《中国给水排水》2013年第11期18-21,共4页China Water & Wastewater

基　　金："十一五"国家科技支撑计划项目(2010BAC67B01);重庆市科技计划重点项目

摘　　要：通过在线监测甲烷含量、沼气产率及离线监测pH值、溶解态COD、挥发性脂肪酸(VFA)和辅酶F420等指标,对CSTR反应器厌氧消化餐厨垃圾的启动过程进行研究。在餐厨垃圾厌氧消化启动过程中,总VFA浓度和甲烷含量首先稳定下来,它们被认为是监控厌氧反应器启动的关键参数。辅酶F420的浓度从启动初期的0.183 mmol/gVSS增加到启动后期的0.282 mmol/gVSS。因此,在厌氧反应器启动阶段,可将辅酶F420的浓度作为反映反应器运行状态的有效监控指标。Start-up of a continuous-flow stirred tank reactor （CSTR） for anaerobic digestion of food waste （FW） was investigated. On-line monitoring parameters were biogas production rate and methane content. Off-line monitoring parameters were pH, soluble chemical oxygen demand （SCOD） , volatile fatty acids （VFA） and coenzyme F420. During the start-up period, the total VFA and the methane content were stabilized and used as the main parameters to monitor reactor start-up. The concentration of coenzyme F420 increased from 0. 183 mmol/gVSS to 0. 282 mmol/gVSS during start-up. Therefore, the coenzyme F420 could be used to control the operation of anaerobic reactor during the start-up period.

关 键 词：餐厨垃圾 厌氧消化 监控 辅酶F420 

分 类 号：X703[环境科学与工程—环境工程]