畜牧与兽医2024，Vol.56Issue(4)：34-40,7.
接种比在中温与低温条件下对猪粪产甲烷潜力的影响研究
Effect of inoculation ratio on pig manure BMP under mesophilic and low temperature conditions
摘要
Abstract
In order to explore the effects of different inoculation ratios on biochemical methane potential(BMP)of pig manure under meso-philic(35±0.5)℃ and low(23±0.5)℃ temperature conditions,the initial volatile solid(VS)concentration was controlled at3％under the tow temperature conditions;and pig manure BMP experiments were carried out according to the ratios of pig manure to inoculum of 1 : 2,1 : 1 and 2 : 1,i.e.,the inoculation ratios(S/I)of 0.5,1.0 and 2.0.The kinetic analysis of methanogenic process was induced.The re-sults showed that cumulative methane production and maximum daily methane production were significantly and positively correlated with the inoculation ratio of pig manure under either mesophilic or hypothermic conditions(P<0.05),but there was no significant difference in the BMP of pig manure under different inoculation ratios(P>0.05).The BMP(using VS as a basis)of pig manure at S/I of 0.5,1.0 and 2.0 under mesophilic conditions were(252.05±5.12)mL/g,(250.07±16.57)mL/g,and(249.65±13.69)mL/g,respectively;and their mean BMP was(250.59±1.28)mL/g.The BMP of pig manure at S/I of 0.5,1.0 and 2.0 under cryogenic conditions were(183.42±9.18)mL/g,(189.02±11.25)mL/g,and(191.88±3.50)mL/g,respectively,and their mean BMP were(188.11±4.31)mL/g.The kinetic studies showed that the modified Gompertz model was more suitable than the logistic model for the kinetic analysis of anaerobic diges-tion of pig feces.The present study showed that there was no significant difference(P>0.05)in the BMP of pig manure at different inocula-tion ratios at medium(35±0.5)℃or low(23±0.5)℃ temperatures when the initial VS level was controlled at3％,and from the perspec-tive of shortening the BMP testing time and improving efficiency,it is recommended that the S/I for pig manure BMP testing be chosen at 0.5.关键词
厌氧消化/猪粪/产甲烷潜力/中温条件/低温条件/接种比Key words
anaerobic digestion/pig manure/biochemical methane potential/mesophilic condition/low temperature condition/inoculation ratio分类
资源环境引用本文复制引用
王安吉,马文林..接种比在中温与低温条件下对猪粪产甲烷潜力的影响研究[J].畜牧与兽医,2024,56(4):34-40,7.基金项目
现代农业产业技术体系北京市生态循环与低碳发展创新团队(BAIC08-2023-SYZ04) （BAIC08-2023-SYZ04）
