畜禽废物厌氧消化的影响因素研究
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- 英文论文题名：Effect factors of anaerobic digestion of livestock and poultry waste
- 论文作者：闫义龙 ; 张立秋 ; 孙德智
- 英文论文作者：YAN Yi-long ; ZHANG Li-qiu ; SUN De-zhi ; Beijing key Lab for Source Control Technology of Water pollution ; College of Environmental Science and Engineering ; Beijing Forestry University
- 年：2016
- 作者机构：北京林业大学环境科学与工程学院北京市水体污染源控制技术重点实验室工程中心;
- 论文关键词：干式厌氧消化 ; 鸡粪 ; 秸秆 ; 氨氮抑制 ; 甲烷
- 英文论文关键词：Solid state anaerobic digestion ; Chicken manure ; Corn stover ; Ammonia inhibition ; Methane
- 会议召开时间：2016-12-14
- 会议录名称：2016全国水环境污染控制与生态修复技术高级研讨会论文集
- 语种：中文
- 分类号：X713
- 学会代码：HJKP
- 会议名称：2016全国水环境污染控制与生态修复技术高级研讨会
- 会议地点：中国云南腾冲
- 主办单位：中国环境科学学会、中国环境科学研究院
- 学会名称：中国环境科学学会
- 页数：8
- 文件大小：1859k
- 原文格式：D
- 会议级别：全国
摘要
本文研究了不同水平的温度、底物浓度与C/N对厌氧消化过程稳定与性能的影响。测试了中温(37℃)与高温(55℃)条件下,不同鸡粪(CM)秸秆(CS)掺杂比例的半干式(60g VS/L)与干式(100g VS/L)厌氧消化的甲烷产量。结果显示混合物料厌氧消化组CM:CS=3:1(VS:VS)与CM:CS=1:1(VS:VS)表现出底物的协同作用,其中CM:CS=1:1(VS:VS)中温半干式厌氧消化累积甲烷产量最高,达223.7m L/g VS底物,CM:CS=3:1(VS:VS)中温干式厌氧消化容积甲烷产量最高,达20.3L/L消化容积。研究发现高浓度的氨氮对高温高含固率的厌氧消化有显著的抑制作用,配置适宜氨氮浓度的初始底物与选择较低的消化温度可以有效控制氨氮的生物毒性。
This study investigated stability and performance of the anaerobic digestion process based on the optimized digestion temperature, initial substrate concentration(ISC) and C/N ratio. In mesophilic(37℃) and thermophilic(55℃) conditions, the methane production at different corn stover(CS) and chicken manure(CM) ratios digestion was investigated during hemi-solid state(HSS-AD) or solid state(SS-AD) anaerobic digestion. Results showed that synergistic effects were found when mixing two substrates at CS:CM ratios of 1:1 and 3:1(on volatile solid basis), the highest methane yield of 223.7mL/g VS_(added) was achieved in HSS-AD at CS:CM ratio of 1:1 under 37℃, the highest volumetric methane productivity of 20.3L/Lreactor was achieved in SS-AD at CS:CM ratios of 3:1 under 37℃. The experimental results demonstrate that excess ammonia had significantly negative influence on SS-AD under thermophilic, optimal initial substrate ammonia concentration and low temperature operating conditions were considered as feasible options to reduce the ammonia toxicity in AD. Thermophilic AD shows a better startup performance than mesophilic AD due to an accelerated hydrolysis process of lignocellulosic feedstock. The results of this work provide useful information to improve the stability and performance of livestock and poultry waste under different conditions.
This study investigated stability and performance of the anaerobic digestion process based on the optimized digestion temperature, initial substrate concentration(ISC) and C/N ratio. In mesophilic(37℃) and thermophilic(55℃) conditions, the methane production at different corn stover(CS) and chicken manure(CM) ratios digestion was investigated during hemi-solid state(HSS-AD) or solid state(SS-AD) anaerobic digestion. Results showed that synergistic effects were found when mixing two substrates at CS:CM ratios of 1:1 and 3:1(on volatile solid basis), the highest methane yield of 223.7mL/g VS_(added) was achieved in HSS-AD at CS:CM ratio of 1:1 under 37℃, the highest volumetric methane productivity of 20.3L/Lreactor was achieved in SS-AD at CS:CM ratios of 3:1 under 37℃. The experimental results demonstrate that excess ammonia had significantly negative influence on SS-AD under thermophilic, optimal initial substrate ammonia concentration and low temperature operating conditions were considered as feasible options to reduce the ammonia toxicity in AD. Thermophilic AD shows a better startup performance than mesophilic AD due to an accelerated hydrolysis process of lignocellulosic feedstock. The results of this work provide useful information to improve the stability and performance of livestock and poultry waste under different conditions.
引文
[1]Hong Nie,H.Fabian Jacobib,Katrin Strach,et al.Mono-fermentation of chicken manure:Ammonia inhibition and recirculation of the digestate[J].Bioresource Technology,2015,(178):238-246.
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[4]Xumeng Ge,Fuqing Xu,Yebo Li.Solid-state anaerobic digestion of lignocellulosic biomass:Recent progress and perspectives[J].Bioresource Technology,2016,(205):239-249.
[5]Zhe Tian,Yu Zhang,Yuyou Li,et al.Rapid establishment of thermophilic anaerobic microbial community during the one-step startup of thermophilic anaerobic digestion from a mesophilic digester[J].Water Research,2015,(69):9-19.
[6]APHA,1998.Standard Methods for the Examination of Water and Wastewater,18th ed.American Public Health Association,DC,USA.
[7]Rajinikanth Rajagopal,Daniel I.Massé,Gursharan Singh.A critical review on inhibition of anaerobic digestion process by excess ammonia[J].Bioresource Technology,2013,(143):632-641.
[8]Hegde G,Pullammanappallil P.Comparison of thermophilic and mesophilicone-stage,batch,high-solids anaerobic digestion[J].Environ.Technol,2007,(28):361-369.
[9]Fuqing Xu,Zhiwu Wang,Li Tang,et al.A mass diffusion-based interpretation of the effect of total solids content on solid-state anaerobic digestion of cellulosic biomass[J].Bioresource Technology,2014,(167):178-185.
[10]Lauterb?ck B.,Ortner M.,Haider,R.,et al.Counteracting ammonia inhibition in anaerobic digestion by removal with a hollow fiber membrane contactor[J].Water Research,2012,(46):4861-4869.
[2]Yi Zheng,Jia Zhao,Fuqing Xu,et al.Pretreatment of lignocellulosic biomass for enhanced biogas production[J].Progress in Energy and Combustion Science,2014,(42):35-53.
[3]Yebo Li,Stephen Y.Park,Jiying Zhu.Solid-state anaerobic digestion for methane production from organic waste[J].Renewable and Sustainable Energy Reviews,2011,(15):821-826.
[4]Xumeng Ge,Fuqing Xu,Yebo Li.Solid-state anaerobic digestion of lignocellulosic biomass:Recent progress and perspectives[J].Bioresource Technology,2016,(205):239-249.
[5]Zhe Tian,Yu Zhang,Yuyou Li,et al.Rapid establishment of thermophilic anaerobic microbial community during the one-step startup of thermophilic anaerobic digestion from a mesophilic digester[J].Water Research,2015,(69):9-19.
[6]APHA,1998.Standard Methods for the Examination of Water and Wastewater,18th ed.American Public Health Association,DC,USA.
[7]Rajinikanth Rajagopal,Daniel I.Massé,Gursharan Singh.A critical review on inhibition of anaerobic digestion process by excess ammonia[J].Bioresource Technology,2013,(143):632-641.
[8]Hegde G,Pullammanappallil P.Comparison of thermophilic and mesophilicone-stage,batch,high-solids anaerobic digestion[J].Environ.Technol,2007,(28):361-369.
[9]Fuqing Xu,Zhiwu Wang,Li Tang,et al.A mass diffusion-based interpretation of the effect of total solids content on solid-state anaerobic digestion of cellulosic biomass[J].Bioresource Technology,2014,(167):178-185.
[10]Lauterb?ck B.,Ortner M.,Haider,R.,et al.Counteracting ammonia inhibition in anaerobic digestion by removal with a hollow fiber membrane contactor[J].Water Research,2012,(46):4861-4869.