重庆大学学报2016，Vol.39Issue(2)：64-70,7.DOI:10.11835/j.issn.1000-582X.2016.02.009
湿热预处理对餐厨垃圾高温干式厌氧消化的影响
Effect of hydrothermal pretreatment on thermophilic anaerobic digestion of food waste
摘要
Abstract
Anaerobic fermentation tests were carried out with 20% solid content at the temperature of 55 ℃to investigate the effect of hydrothermal pretreatment on thermophilic anaerobic digestion of food waste.Orthogonal test L9 (33 )was employed to determine the effects of water addition ratio,temperature and time.The results show that the physical and the chemical properties of food waste change significantly after hydrothermal treatment.The daily biogas production,the cumulative biogas production and the removal rates of TS and VS of food waste increase significantly after pretreatment.When the water addition ratio is 50%,temperature is 120 ℃ and pretreatment time is 80 min,we get 101 050 mg/L SCOD,which is 5 .6 times of that of the untreated group.The peak values of daily and cumulative biogas production also reach the maximum under these pretreatment conditions.The maximum cumulative biogas production is 269.10 mL/g VS,which increases by 49.4% than that of the untreated group.The influences of the three factors on thermophilic anaerobic fermentation of food waste are temperature>time>water addition ratio.The effects of temperature and time of hydrothermal pretreatment on food waste fermentation are evident,while the effect of water addition ratio is less evident.关键词
湿热预处理/餐厨垃圾/厌氧消化/正交试验Key words
hydrothermal pretreatment/food waste/anaerobic digestion/orthogonal test分类
资源环境引用本文复制引用
王攀,郭新愿,卢擎宇,任连海,李冰心,种宇轩,黄燕冰..湿热预处理对餐厨垃圾高温干式厌氧消化的影响[J].重庆大学学报,2016,39(2):64-70,7.基金项目
北京市自然科学基金资助项目（8144041）；国家自然科学基金资助项目（51578008）；“十二五”国家科技支撑计划（2014BAC27B01-03，2012BAC25B01）。Supported by Natural Science Foundation of Beijing（8144041），National Natural Science Foundation of China （51578008），Projects in the National Science ＆Technology Pillar Program during the Twelfth Five-year Plan Period（2014BAC27B01-03，2012BAC25B01）． （）
