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果蔬废弃物厌氧消化特征及固体减量研究
引用本文:刘广民,董永亮,薛建良,肖宇芳,尹莉莉.果蔬废弃物厌氧消化特征及固体减量研究[J].环境科学与技术,2009,32(3).
作者姓名:刘广民  董永亮  薛建良  肖宇芳  尹莉莉
作者单位:哈尔滨工程大学材料科学与化学工程学院环境工程系,黑龙江,哈尔滨,150001
基金项目:哈尔滨工程大学校基金 
摘    要:采用两相厌氧消化工艺处理固体果蔬废弃物,反应液在系统内循环使用,研究了果蔬废弃物产酸发酵类型、产甲烷相对消化产物的利用顺序和果蔬固体减量效果。结果表明,在酸化阶段,挥发酸总量最高达5800mg/L,其中丁酸占45%、戊酸占23%、乙酸占20%、丙酸和乙醇占10%左右,属于丁酸型发酵;产甲烷相对挥发酸的利用顺序为乙醇>丁酸>戊酸>丙酸>乙酸,产甲烷阶段体系ORP为-480mV左右;在厌氧消化处理过程中,反应液中COD由开始时的10000mg/L降至反应后期2000mg/L左右,COD去除率达80%以上;同时,果蔬固体物质去除率达到98.6%,果蔬废弃物减量效果明显。

关 键 词:果蔬废弃物  厌氧消化  发酵类型  固体减量

Characteristics of Anaerobic Digestion of Fruit and Vegetable Waste and Solid Decrement
LIU Guang-min,DONG Yong-liang,XUE Jian-liang,XIAO Yu-fang,YIN Li-li.Characteristics of Anaerobic Digestion of Fruit and Vegetable Waste and Solid Decrement[J].Environmental Science and Technology,2009,32(3).
Authors:LIU Guang-min  DONG Yong-liang  XUE Jian-liang  XIAO Yu-fang  YIN Li-li
Institution:LIU Guang-min,DONG Yong-liang,XUE Jian-liang,XIAO Yu-fang,YIN Li-li (Department of Environment Engineering,School of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China)
Abstract:Fermentation type,utilization order of digestion products in methane production phase as well as effectiveness of total solid decrement of fruit and vegetable wastes (FVW)were studied by using a two-phase anaerobic digestion process. Results showed that the maximum total volatile fermentation acids (VFA)was 5800mg/L in the acidification phase,in which the concentration of propionic acid,valeric acid,acetic acid and propionic acid/ethanol were 45% ,23% ,20% and 10% respectively,with fermentation as butyric a...
Keywords:fruit and vegetable wastes(FVW)  anaerobic digestion  fermentation type  solid decrement  
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