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当前位置: 首页 > 文章 > 响应面优化猪粪、牛粪与玉米秸秆混合发酵工艺 西北农林科技大学学报(自然科学版) 2013,41 (11) 125-130
Position: Home > Articles > Optimization of fermentation process of manure and corn straw by response surface methodology Journal of Northwest A & F University(Natural Science Edition) 2013,41 (11) 125-130

响应面优化猪粪、牛粪与玉米秸秆混合发酵工艺

作  者：
李芳;杨丽霞;宋籽霖;王晓娇;韩新辉;任广鑫
单  位：
陕西省循环农业工程技术研究中心;西北农林科技大学林学院
关键词：
混合原料;厌氧发酵;累积产气量;Box-Behnken试验设计;响应面分析
摘  要：
【目的】研究猪粪、牛粪与玉米秸秆混合原料厌氧发酵的最佳工艺条件。【方法】采用单因素试验考察了猪粪与牛粪的混合比例(质量比)、粪秆比(猪粪和牛粪总量与玉米秸秆干物质质量比)、总固体质量分数3个因素对厌氧发酵过程累积产气量的影响,并在此基础上通过Box-Behnken试验设计及响应面分析对厌氧发酵工艺进行优化。【结果】在单因素试验中,当猪粪与牛粪混合比例为1∶1,粪秆比为1.86∶1及总固体质量分数为11%时,累积产气量均较高。猪粪、牛粪与玉米秸秆混合厌氧发酵的最佳工艺条件为:猪粪与牛粪混合比例为1.06∶1、粪秆比为2.94∶1、总固体质量分数为10.68%。【结论】在猪粪、牛粪与玉米秸秆混合厌氧发酵的最佳工艺下,累积产气量可达17 170mL。
译  名：
Optimization of fermentation process of manure and corn straw by response surface methodology
作  者：
LI Fang;YANG Li-xia;SONG Zi-lin;WANG Xiao-jiao;HAN Xin-hui;REN Guang-xin;College of Forestry,Northwest A&F University;The Research Center of Recycle Agricultural Engineering and Technology of Shannxi Province;College of Agronomy,Northwest A&F University;
关键词：
the raw material mixture;;anaerobic fermentation;;cumulative biogas yield;;BBD experimen-tal design;;response surface methodology
摘  要：
【Objective】In this paper,we studied the optimal technological conditions for anaerobic fermentation of mixed raw materials with pig manure,cow manure and corn straw.【Method】The effects of pig dung to cow dung ratio,manure to corn straw ratio and total solid(TS)on the biogas production efficiency of anaerobic fermentation were investigated by single factor experiments.Then,the Box-Behnken design experiments and response surface methodology(RSM)were used in the optimization of anaerobic fermentation technology.【Result】Highest cumulative biogas yield was obtained by single factor when the ratio of pig dung to cow dung was 1∶1,the ratio of manure to corn straw was 1.86∶1and TS was 11%.Consequently,the optimal technological conditions were confirmed:The ratio of pig dung to cow dung as1.06∶1,the ratio of manure to corn straw was 2.94∶1and TS was 10.68%.【Conclusion】We obtained the optimal technological parameters for anaerobic fermentation of mixed raw materials with pig manure,cow manure and corn straw.Under optimal conditions,the cumulative biogas yield was up to 17 170mL.

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