蔬菜废弃物厌氧发酵制沼气的工艺条件研究
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摘要
文章以蔬菜废弃物作为发酵原料,以长期驯化的猪粪和池塘污泥作为接种物,将发酵料液的总固体(TS)含量分别设置为8%,10%和12%,置于室温和中温(35℃)条件下进行厌氧发酵实验,通过监测发酵过程中的pH值、日产气量和CH_4含量的变化,研究蔬菜废弃物在不同条件下的厌氧发酵产气特性。研究结果表明:中温条件下,以池塘污泥作为接种物时,发酵料液TS含量为12%的实验组的日产气量峰值和原料产气率分别为1 750 mL和367.69 mL/g,产气效果优于其它实验组;在中温条件下,以池塘污泥作为接种物时,发酵料液TS含量为10%的实验组在稳定期的CH_4平均含量为80.55%,高于其它实验组。
The article uses vegetable waste as the fermentation raw material and stool of long-term domesticated pig and pond sludge as inoculum. The total solid(TS) content of the fermentation liquid is set to 8%, 10% and 12% respectively, and then the anaerobic fermentation experiment is carried out at room temperature and medium temperature(35 ℃) conditions. The anaerobic fermentation gas production characteristics of vegetable waste under different conditions are studied by monitoring the changes of pH value, daily gas production and CH4 content during fermentation. The results showed that at the condition of medium temperature, the peak of daily gas production and the gas production rate of the experimental group were 1 750 m L and 367.69 m L/g respectively when the sludge sludge is used as the inoculum and the TS content of the fermentation liquid is set to 12%. The effect is superior to other experimental groups. As well, at the medium temperature condition, the average content of CH4 in the stable phase of the experimental group is 80.55% with pond sludge as inoculum and the TS content of the fermentation liquid set to 10%, which is higher than other experimental groups.
The article uses vegetable waste as the fermentation raw material and stool of long-term domesticated pig and pond sludge as inoculum. The total solid(TS) content of the fermentation liquid is set to 8%, 10% and 12% respectively, and then the anaerobic fermentation experiment is carried out at room temperature and medium temperature(35 ℃) conditions. The anaerobic fermentation gas production characteristics of vegetable waste under different conditions are studied by monitoring the changes of pH value, daily gas production and CH4 content during fermentation. The results showed that at the condition of medium temperature, the peak of daily gas production and the gas production rate of the experimental group were 1 750 m L and 367.69 m L/g respectively when the sludge sludge is used as the inoculum and the TS content of the fermentation liquid is set to 12%. The effect is superior to other experimental groups. As well, at the medium temperature condition, the average content of CH4 in the stable phase of the experimental group is 80.55% with pond sludge as inoculum and the TS content of the fermentation liquid set to 10%, which is higher than other experimental groups.
引文
[1]杜玉英.越南兴安城市生活垃圾处理方式研究[D].南宁:广西民族大学,2013.
[2]李艾璐.老挝万象市生活垃圾分类及资源化利用问题研究[D].南宁:广西民族大学,2014.
[3]王丽英,吴硕,张彦才,等.蔬菜废弃物堆肥化处理研究进展[J].中国蔬菜,2014,1(6):6-12.
[4]龙荣华,潘丽云,浦恩达,等.云南蔬菜产业发展的问题与思考[J].中国农学通报,2013,29(20):101-104.
[5]徐文勇,李景明,王久臣,等.我国沼气发展的区域差异及影响因素分析[J].可再生能源,2016,34(4):628-632.
[6]倪萍,孙昊,吴树彪,等.大中型农业沼气工程沼液循环回用影响分析[J].可再生能源,2017,35(4):482-488.
[7]韩文彪,王毅琪,徐霞,等.剩余污泥与生活有机垃圾联合厌氧消化产沼气研究[J].可再生能源,2016,34(5):745-748.
[8]刘荣厚,王远远,孙辰.温度对蔬菜废弃物沼气发酵产气特性的影响[J].农业机械学报,2009,40(9):116-121.
[9]刘芳,邱凌,李自林,等.蔬菜废弃物厌氧发酵产气特性[J].西北农业学报,2013,22(10):162-170.
[10]曹峰毓,王涛.论南亚区域能源合作的背景、历程及问题[J].中外能源,2016,21(1):3-12.
[11] Yu M. Potential of the Biogas Fermentation with Spinacia oleracea L[J].Agriculture&Technology,2004(2):38-41.
[12]张无敌.沼气发酵与综合利用[M].云南科技出版社,2004.
[13]代媛,徐锐,李杰男,等.餐厨垃圾厌氧消化接种物驯化过程中微生物群落多样性的变化[J].可再生能源,2016,34(12):1891-1896.
[2]李艾璐.老挝万象市生活垃圾分类及资源化利用问题研究[D].南宁:广西民族大学,2014.
[3]王丽英,吴硕,张彦才,等.蔬菜废弃物堆肥化处理研究进展[J].中国蔬菜,2014,1(6):6-12.
[4]龙荣华,潘丽云,浦恩达,等.云南蔬菜产业发展的问题与思考[J].中国农学通报,2013,29(20):101-104.
[5]徐文勇,李景明,王久臣,等.我国沼气发展的区域差异及影响因素分析[J].可再生能源,2016,34(4):628-632.
[6]倪萍,孙昊,吴树彪,等.大中型农业沼气工程沼液循环回用影响分析[J].可再生能源,2017,35(4):482-488.
[7]韩文彪,王毅琪,徐霞,等.剩余污泥与生活有机垃圾联合厌氧消化产沼气研究[J].可再生能源,2016,34(5):745-748.
[8]刘荣厚,王远远,孙辰.温度对蔬菜废弃物沼气发酵产气特性的影响[J].农业机械学报,2009,40(9):116-121.
[9]刘芳,邱凌,李自林,等.蔬菜废弃物厌氧发酵产气特性[J].西北农业学报,2013,22(10):162-170.
[10]曹峰毓,王涛.论南亚区域能源合作的背景、历程及问题[J].中外能源,2016,21(1):3-12.
[11] Yu M. Potential of the Biogas Fermentation with Spinacia oleracea L[J].Agriculture&Technology,2004(2):38-41.
[12]张无敌.沼气发酵与综合利用[M].云南科技出版社,2004.
[13]代媛,徐锐,李杰男,等.餐厨垃圾厌氧消化接种物驯化过程中微生物群落多样性的变化[J].可再生能源,2016,34(12):1891-1896.