WANGLei,LUFeng,SUNXu-ping,et al.Energy Saving and Consumption Reduction Measures in A3O and MBR Domestic Sewage Treatment Plant[J].China Water & Wastewater,2024,40(20):83-88.
Energy Saving and Consumption Reduction Measures in A3O and MBR Domestic Sewage Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第20期
Page:
83-88
Column:
Date of publication:
2024-10-17
- Keywords:
- sewage treatment plant; MBR process; energy saving and consumption reduction; air blower replacement; submersible mixer; membrane replacement
- Abstract:
- High energy consumption is one of the main problems faced by municipal sewage treatment plants using MBR process. In order to save energy and reduce consumption, a sewage treatment plant in Kunshan has taken a series of optimization measures, including energy saving technical reform for high energy consumption equipment of air system, conveying system and mixing system respectively. The results show that after technical transformation and replacement, energy consumption of the aeration blower decreased by 0.08-0.09 kW·h/m3, the electricity consumption of the membrane scrub fan was saved by 570 kW·h/d, the energy consumption per unit volume of the submersible mixer was reduced by 12.28 W/m3, and the electricity of the production water pump was saved by 69 kW·h/d. After membrane replacement, the power consumption can be reduced by 0.029 kW·h/m3, saving about 164 000 yuan per year of electricity which accounts for 6.27% of the whole plant’s electricity cost, saving 239 500 yuan per year of chemical and 578 000 yuan per year of water cost loss.
Last Update:
2024-10-17