CHENHaolin,WANGRen,ANDong,et al.Analysis of Carbon Emissions and Optimization Approaches of Multi-mode A/O+MBR Process[J].China Water & Wastewater,2026,42(12):58-63.
Analysis of Carbon Emissions and Optimization Approaches of Multi-mode A/O+MBR Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第12期
Page:
58-63
Column:
Date of publication:
2026-06-17
- Abstract:
- Under the “dual-carbon” background, how to achieve carbon reduction under the current operation conditions of sewage treatment processes has put forward new requirements and new missions for the low-carbon operation of sewage treatment. This paper conducts a carbon emission analysis on an underground MBR process sewage treatment plant with a treatment capacity of 30 000 m3/d in North China. Based on the comprehensive sewage treatment efficiency and energy consumption cost, it is calculated that the daily carbon emission intensity of this sewage treatment plant is 1.45 kgCO2/m3. Direct carbon emissions account for approximately 20% of the total carbon emissions of the entire plant, and indirect carbon emissions account for 80% of the total carbon emissions of the entire plant. In terms of indrect carbon emissions, the carbon emissions from electricity consumption account for the highest proportion, accounting for 53.93% of the total carbon emissions. The carbon emissions from chemical agents consumption account for 26.17% of the total carbon emissions. In terms of carbon reduction measures, under the premise of meeting the water quality discharge standards, the focus is on continuously optimizing the process and equipment operation strategies. Methods such as intermittent operation of agitators and gradient collection of deodorization concentrations are adopted to achieve a carbon reduction of approximately 6 293 kgCO2/d for this underground sewage treatment plant.
Last Update:
2026-06-17