| 生物炭对污泥热解液与牛粪共厌氧发酵的影响 |
| |
| 引用本文： | 岳霞,陈德珍,安青,钦佩. 生物炭对污泥热解液与牛粪共厌氧发酵的影响[J]. 中国环境科学, 2022, 42(3): 1267-1277 |
| |
| 作者姓名： | 岳霞 陈德珍 安青 钦佩 |
| |
| 作者单位： | 1. 同济大学热能与环境工程研究所, 上海 200092;2. 内蒙古工业大学机械工程学院, 内蒙古 呼和浩特 010051;3. 南京大学盐生植物实验室, 江苏 南京 210023 |
| |
| 基金项目： | 国家重点研发计划课题(2017YFC0506004)； |
| |
| 摘 要： | 利用4种以芦苇和互花米草为原料的生物炭促进含大量毒性有机物的污泥热解液(SSPL)和牛粪的共厌氧发酵,以实现SSPL的降解并促进其产甲烷,同时分析了炭源中无机质的影响.结果表明:与对照组相比,添加生物炭后可将产甲烷高峰日提前4～8d,累计甲烷产量提升78.8％～157.2％;4种生物炭的促进效果与其炭源中无机质的含量呈...
|
| 关 键 词： | 生物炭 污泥热解液 厌氧发酵 无机质 |
| 收稿时间： | 2021-08-09 |
Biochars enhancing anaerobic co-digestion of sewage sludge pyrolysis liquid and cow dung: influences of inorganics in biochar raw materials |
| |
| YUE Xia,CHEN De-zhen,AN Qing,QIN Pei. Biochars enhancing anaerobic co-digestion of sewage sludge pyrolysis liquid and cow dung: influences of inorganics in biochar raw materials[J]. China Environmental Science, 2022, 42(3): 1267-1277 |
| |
| Authors: | YUE Xia CHEN De-zhen AN Qing QIN Pei |
| |
| Affiliation: | 1. Thermal & Environmental Engineering Institute, Tongji University, Shanghai 200092, China;2. School of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;3. Halophyte Research Laboratory, Nanjing University, Nanjing 210023, China |
| |
| Abstract: | 4 biochars obtained from Phragmites australis and Sporobolus alterniflora were added to the anaerobic co-digestion system of SSPL and cow dung matrix. Batch experiment revealed that biochar addition brought forward the peak day of daily methane yield by 4~8 days and increased the cumulative methane yield by 78.8%~157.2% compared with the controlled group without biochar addition. The promoting effects of the biochars were inversely correlated with the inorganic contents in their raw materials. Biochar addition weakened the microbial bioavailability of SSPL in the liquid by adsorbing its toxic compounds, providing supports and trace elements for microbials, and promoting the interspecific electrical transmission of microbials. The higher the inorganic contents in biochar raw materials, the worse the adsorption performances on SSPL of biochars, which resulted in the higher the organic contents in residues after anaerobic digestion. Biochar raw materials containing alkaline earth metals had better promoting effects on anaerobic digestion than alkali metals when their inorganic contents were similar. |
| |
| Keywords: | biochar sewage sludge pyrolysis liquid anaerobic digestion inorganics |
|
| 点击此处可从《中国环境科学》浏览原始摘要信息 |
|
点击此处可从《中国环境科学》下载全文 |
|
