Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4997832 | Bioresource Technology | 2017 | 19 Pages |
Abstract
This work presents a novel, fast and simple monitoring-responding method at the very early stages of membrane bio-fouling in a membrane bioreactor (MBR) during saline wastewater treatment. The impacts of multiple environmental shocks on membrane fouling were studied. The transmembrane pressure exceeded the critical fouling pressure within 8Â days in the case of salinity shock or temperature shock. In the case of DO shock, the transmembrane pressure exceeded the critical fouling pressure after 16Â days, showing the lower impact of DO shock on the MBR. In another study, the membrane fouling was observed within 4Â days responding to mixed environmental shocks. To decrease the potential of membrane bio-fouling, another bioreactor was integrated immediately with the MBR as a quickly-responded countermeasure, when an early warning of membrane bio-fouling was provided. After the bioreactor enhancement, the time required for membrane fouling increased from 4 to 10Â days.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Songwen Tan, Yang Hou, Chunzhi Cui, Xuncai Chen, Weiguo Li,