Greenhouse gases from membrane bioreactors: Mathematical modelling, sensitivity and uncertainty analysis

Bioresource Technology
Giorgio ManninaGeorge A Ekama

Abstract

In this study a new mathematical model to quantify greenhouse gas emissions (namely, carbon dioxide and nitrous oxide) from membrane bioreactors (MBRs) is presented. The model has been adopted to predict the key processes of a pilot plant with pre-denitrification MBR scheme, filled with domestic and saline wastewater. The model was calibrated by adopting an advanced protocol based on an extensive dataset. In terms of nitrous oxide, the results show that an important role is played by the half saturation coefficients related to nitrogen removal processes and the model factors affecting the oxygen transfer rate in the aerobic and MBR tanks. Uncertainty analysis showed that for the gaseous model outputs 88-93% of the measured data lays inside the confidence bands showing an accurate model prediction.

Citations

Apr 16, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·C BrepolsG Mannina
Sep 18, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Giorgio ManninaTaise Ferreira Rebouças
Feb 24, 2021·Bioresource Technology·Giorgio ManninaIlse Smets
Nov 7, 2021·The Science of the Total Environment·Zeyu LiYong Sik Ok

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioreactors (ASM)

Bioreactors are important devices or systems that utilize living cells or enzymes for a chemical process. These devices carefully control and monitor the environment factors such as pH, nutrients level, and temperature, which can affect the yield in a given process. Discover the latest research here.