Estimation of greenhouse gas emissions from a wastewater treatment plant using membrane bioreactor technology. (8th February 2019)

• Record Type: Journal Article
• Authors: Chen, Ying‐Chu
• Is Part Of: Water environment research. Volume 91:Number 2(2019)
• Page Start: 111
• Page End: 118
• Publication Date: 2019-02-08
• Subjects: global warming -- greenhouse gas -- membrane bioreactors -- Wastewater -- wastewater treatment; Water quality management -- Periodicals; Water -- Purification -- Periodicals; Water -- Pollution -- Periodicals; Water -- Pollution; Water -- Purification; Water quality management; Sewage; Water Pollution; Periodicals; Electronic journals; Periodicals; 628.16
• DOI: 10.1002/wer.1004
• Languages: English
• ISSNs: 1061-4303

Abstract

Abstract: Wastewater treatment plants (WWTPs) using membrane bioreactor (MBR) technology have been considered a significant source of greenhouse gas (GHG) emissions. This study chose a small‐scale wastewater treatment plant using MBR technology to estimate its potential for GHG emissions. The total GHG emissions from this wastewater treatment plant ranged from 2, 802 to 11, 946 kg CO2 ‐eq/month within the 4‐year study period, and they were mainly attributable to electricity consumption (79.94%) followed by chemical usages (17.13%) and on‐site GHG emissions (2.93%). The on‐site GHG emissions varied monthly, but most of them ranged from 80 to 160 kg CO2 ‐eq/month. The aeration tank was an important operating unit for GHG emissions. Off‐site GHG emissions mainly came from carbon dioxide (CO2 ) emissions resulting from electricity consumption. The results of this study provide useful information about the potential of GHG emissions from WWTPs using MBR technology and indicate that WWTPs can be sustainably managed. Practitioner points: Wastewater treatment plants have been considered a source of greenhouse gas emissions. Total greenhouse gas emissions from the wastewater treatment plants using membrane bioreactor were mainly attributable to electricity consumption. On‐site greenhouse gas emissions were relatively insignificant in this study.