节点文献

蔬菜废弃物在不同温度中放置后对厌氧消化产气的影响

The Effect of Vegetable Waste Placed at Different Temperatures on Anaerobic Digestion Gas Production

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 李开靖赵兴玲梁承月吴凯王昌梅杨斌柳静杨红尹芳张无敌

【Author】 LI Kaijing;ZHAO Xingling;LIANG Chengyue;WU Kai;WANG Changmei;YANG Bin;LIU Jing;YANG Hong;YIN Fang;ZHANG Wudi;College of Energy and Environmental Sciences, Yunnan Normal University;Yunnan Biogas Engineering Technology Research Center;Yunnan Normal University Graduate School;

【通讯作者】 张无敌;

【机构】 云南师范大学能源与环境科学学院云南省沼气工程技术研究中心云南师范大学研究生院

【摘要】 为了优化蔬菜废弃物厌氧消化工艺,以油麦菜的废弃物为原料,对放置在冷藏(4℃)、冷冻(0℃)、常温中6 d后的原料和现粉碎的原料进行批量发酵实验,发酵温度控制在(35±1)℃。结果表明,将蔬菜废弃物粉碎后,在常温有氧条件下放置6 d后,再进行厌氧消化处理,TS含量减少25%,能起到缓解上层漂浮物结壳的作用;提高产气速率,使产气集中在前6 d,降低能耗,提高处理效率;常温放置6 d后的原料比现粉碎的原料产气率提高了25%,每吨原料大约可以多产沼气2.56 m3,还能明显提高CH4含量,CH4含量可以达到64.4%。该工艺能帮助蔬菜废弃物厌氧消化工程提高产气速率和产甲烷量,降低能耗,而且该工艺简单易操作,投资少。

【Abstract】 In order to optimize the anaerobic digestion process of vegetable waste, the waste of lettuce was used as raw material. The batch fermentation experiments were carried out on the raw materials placed in refrigerated(4 ℃), frozen(0 ℃), room temperature after 6 days and the crushed raw materials. The fermentation temperature was controlled at(35±1)℃. The results showed that the TS content was reduced by 25% after the vegetable waste was crushed and placed under aerobic conditions at room temperature for 6 days, which could alleviate the crusting of the upper floating matter. Improve the gas production rate, so that the gas production is concentrated in the first 6 days, reduce energy consumption, improve treatment efficiency; the gas production rate of the raw materials placed at room temperature for 6 days is 25% higher than that of the crushed raw materials. Each ton of raw materials can produce about 2.56 m3 more biogas, and the CH4 content can be significantly improved, and the CH4 content can reach 64.4%.The process can help vegetable waste anaerobic digestion project to improve the gas production rate and methane production, reduce energy consumption, and the process is simple and easy to operate, less investment.

【基金】 云南省万人计划产业技术领军人才项目(20191096);云南省基础研究计划(202001AT070094);云南省国际科技合作专项(202003AF140001);云南省基础研究专项青年项目(202201AU070058);云南省教育厅科学研究基金项目(2022J0127);云南师范大学博士启动项目(xj2021102918);昆明市国际(对外)科技合作基地(GHJD-2020026);云南省劳模创新工作室和云南省农村能源工程重点实验室基金联合资助
  • 【分类号】S216.4
  • 【下载频次】33
节点文献中: 

本文链接的文献网络图示:

本文的引文网络