DU Qiang-qiang,MI Zhi-chen,JIN Shen,et al.Discussion on the Design of Thermal Hydrolysis-Anaerobic Digestion Biogas Utilization System for Sludge[J].China Water & Wastewater,2020,36(18 18):51-55.
Discussion on the Design of Thermal Hydrolysis-Anaerobic Digestion Biogas Utilization System for Sludge
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
18 18
Page:
51-55
Column:
Date of publication:
2020-09-17
- Keywords:
- operation parameters; biogas utilization system; biogas power generation; biological desulfurization
- Abstract:
- Four of the five sludge treatment centers with the core process of thermal hydrolysis-anaerobic digestion have been put into production in Beijing. Based on the analysis of the actual operation parameters such as the actual sludge treatment scale and biogas output of retrofitting plant A and new construction plant B, it was concluded that an effective biogas utilization system must be designed to avoid the waste of resources. Combined with the actual operating parameters of plant A and B, the technological characteristics and economic analysis of biogas power generation, biogas purification and biogas utilization technology of biogas drive blower were compared to determine the best scheme for biogas power generation of gas turbines with high efficiency, flexibility and better income. The analysis showed that the H2S concentration in the biogas produced by the two plants after digestion was found to be higher than the design value, and the current operation cost of dry desulfurization system was high. Therefore, the design of the desulfurization system was optimized to be a biological desulfurization system with low operating cost, simple operation and strong resistance to load shock, and the dry desulfurization of the current situation was retained to ensure the stable operation of the biogas utilization system.
Last Update:
2020-09-17