Review of enhanced processes for anaerobic digestion treatment of sewage sludge

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Liu, Xinyuan^1 ; Han, Zeyu^1 ; Yang, Jie^1 ; Ye, Tianyi^1 ; Yang, Fang^1 ; Wu, Nan^1 ; Bao, Zhenbo^1

College of Engineering and Technology, Tianjin Agricultural University, Tianjin

300384, China^1

关键词: Anaerobic fermentation process;    Anaerobic process;    Biogas production;    Enhancement technologies;    Environmental pollutions;    Fermentation efficiency;    Sludge pretreatment;    Two-stage fermentations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012039/pdf
DOI  :  10.1088/1755-1315/113/1/012039

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Great amount of sewage sludge had been produced each year, which led to serious environmental pollution. Many new technologies had been developed recently, but they were hard to be applied in large scales. As one of the traditional technologies, anaerobic fermentation process was capable of obtaining bioenergy by biogas production under the functions of microbes. However, the anaerobic process is facing new challenges due to the low fermentation efficiency caused by the characteristics of sewage sludge itself. In order to improve the energy yield, the enhancement technologies including sewage sludge pretreatment process, co-digestion process, high-solid digestion process and two-stage fermentation process were widely studied in the literatures, which were introduced in this article.