| 生物甲烷系统的组分分析与综合评价 |
| |
| 引用本文： | 柯蓝婷,王远鹏,郑艳梅,李清彪.生物甲烷系统的组分分析与综合评价[J].化工学报,2021,72(7):3801-3813. |
| |
| 作者姓名： | 柯蓝婷 王远鹏 郑艳梅 李清彪 |
| |
| 作者单位： | 1.厦门大学化学化工学院化学工程与生物工程系，福建 厦门 361005;2.集美大学食品与生物工程学院，福建 厦门 361021 |
| |
| 基金项目： | 国家自然科学基金重点项目(22038012) |
| |
| 摘 要： | 明确生物甲烷过程中原料、沼液和沼渣的组成与系统的综合评价，在优化生物甲烷系统、减少污染物排放等方面都具有重要意义。研究了牛粪、猪粪、秸秆、餐厨垃圾和鸡粪等五种典型原料的生物甲烷系统，分析原料、沼气、沼液和沼渣的组成，并在此基础上构建了包含绿色度、甲烷产率、沼液沼渣的重金属污染度和潜在生态风险四个方面的生物甲烷系统综合评价体系。研究结果表明：猪粪原料的生物甲烷系统绿色度和甲烷产率最高，分别达到0.222和212 ml·g-1，但其沼渣的重金属污染度最高；牛粪原料的生物甲烷系统绿色度较高，达到0.200，沼渣的重金属污染度最低，但甲烷产率仅有116 ml·g-1；秸秆原料的生物甲烷系统沼渣的潜在生态风险最低，沼液的重金属污染度和潜在生态风险较低，但绿色度和甲烷产率偏低；鸡粪原料的生物甲烷系统甲烷产率较高，达到183 ml·g-1，但沼液的重金属污染度和潜在生态风险都最高，且绿色度较低；餐厨垃圾原料的生物甲烷系统性能最差，绿色度和甲烷产率最低，并且沼渣的潜在生态风险最高。
|
| 关 键 词： | 生物甲烷系统 原料 沼液和沼渣 组分分析 评价 |
| 收稿时间： | 2020-12-28 |
Component analysis and comprehensive evaluation of biomethane systems |
| |
| KE Lanting,WANG Yuanpeng,ZHENG Yanmei,LI Qingbiao.Component analysis and comprehensive evaluation of biomethane systems[J].Journal of Chemical Industry and Engineering(China),2021,72(7):3801-3813. |
| |
| Authors: | KE Lanting WANG Yuanpeng ZHENG Yanmei LI Qingbiao |
| |
| Affiliation: | 1.Department of Chemistry and Biochemical Engineering，College of Chemistry and Chemical Engineering, Xiamen University，Xiamen 361005，Fujian，China;2.College of Food and Biology Engineering, Jimei University, Xiamen 361021, Fujian, China |
| |
| Abstract: | Biomethane system can produce methane from organic wastes, which has developed rapidly in the past twenty years. However, biomethane system has some disadvantages, such as complex raw material source, low utilization rate of organic matter, high output of biogas slurry and biogas residue. Therefore, it is very important to clarify and evaluate the composition of raw materials, biogas slurry and biogas residue during the process of biomethane system, and then optimize the biomethane system and reduce pollutant emissions. In present study, the biomethane system of typical raw materials was established. The component of raw materials, biogas, biogas slurry and biogas residue were analyzed. Moreover, the comprehensive evaluation system of biomethane system with green degree, methane yield, contamination degree of heavy metals and potential ecological risk was constructed. The advantages and disadvantages of the biomethane system with five different raw materials were obtained. The green degree and methane yield were the highest in the biomethane system of swine manure with 0.222 and 212 ml·g-1, respectively, whereas the contamination degree of heavy metals of biogas residue was the highest. The green degree was 0.200 in the biomethane system of cattle manure, and the contamination degree of heavy metals of biogas residue was the lowest, but the methane yield was only 116 ml·g-1. The potential ecological risk and contamination degree of heavy metals of biogas slurry were the lowest in the biomethane system of straw, whereas the green degree and methane yield was low. The methane yield was 183 ml·g-1 in the biomethane system of chicken manure, however the contamination degree of heavy metals and potential ecological risk of biogas slurry were the highest, and the green degree was low. The biomethane system of food waste raw materials has the worst performance, the lowest green degree and methane yield, and the highest potential ecological risk of biogas residue. |
| |
| Keywords: | biomethane system raw materials slurry and residue component analysis evaluation |
|
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
|
