NIUZi-fan,FUHui-jun,ZHAOHe-ping.Application Potential Analysis of MBfR in Advanced Nitrogen Removal of Wastewater Based on Life Cycle Assessment[J].China Water & Wastewater,2023,39(3):88-93.
Application Potential Analysis of MBfR in Advanced Nitrogen Removal of Wastewater Based on Life Cycle Assessment
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第3期
Page:
88-93
Column:
Date of publication:
2023-02-01
- Keywords:
- advanced nitrogen removal of wastewater; hydrogen based membrane biofilm reactor (MBfR); deep bed denitrification filter; life cycle assessment; carbon neutralization
- Abstract:
- Deep bed denitrification filter (downflow) is widely used in advanced nitrogen removal of wastewater due to its simple operation and high nitrogen removal efficiency. However, this process requires additional carbon sources, which will increase energy consumption and carbon emissions. Hydrogen based membrane biofilm reactor (MBfR) is an emerging wastewater treatment technology, which has drawn worldwide attention due to its advantages of low energy consumption, low carbon emission and high nitrogen removal efficiency. To further evaluate the application potential of MBfR in advanced nitrogen removal of wastewater, the life cycle assessment (LCA) method was used to simulate and evaluate the performances of the two advanced nitrogen removal processes, and the energy consumption and carbon emissions of the two processes were analyzed. Compared with the deep bed denitrification filter, the MBfR reduced energy consumption by 43% and CO2 emission by approximately 47%, which had less impact on the environment under the condition of achieving the same treatment performance. It has obvious advantages in advanced nitrogen removal of the effluent from the secondary treatment process, which provides a new idea for promoting the upgrading and reconstruction of wastewater treatment plants and realizing the goal of carbon neutralization in wastewater treatment.
Last Update:
2023-02-01