Sludge cake and biofilm formation as valuable tools in wastewater treatment by coupling Integrated Fixed-film Activated Sludge (IFAS) with Self Forming Dynamic Membrane BioReactors (SFD-MBR).
Saved in:
| Title: | Sludge cake and biofilm formation as valuable tools in wastewater treatment by coupling Integrated Fixed-film Activated Sludge (IFAS) with Self Forming Dynamic Membrane BioReactors (SFD-MBR). |
|---|---|
| Authors: | Vergine, Pompilio1, Salerno, Carlo1 carlo.salerno@ba.irsa.cnr.it, Berardi, Giovanni1, Pollice, Alfieri1 |
| Source: | Bioresource Technology. Nov2018, Vol. 268, p121-127. 7p. |
| Subjects: | Biofilms testing, Activated sludge process, Wastewater treatment, Industrial wastes, Filters & filtration |
| Abstract: | Highlights • Sludge cake acts as key actor of filtration in SFD-MBR for wastewater treatment. • IFAS integration decreased the excess sludge and enhanced denitrification. • The presence of carriers increased the frequency of mesh clogging. • Both SFD-MBRs showed performance comparable to MBR in same operating conditions. Abstract Two lab-scale Self Forming Dynamic Membrane BioReactors (SFD-MBR), equipped with 50 µm nylon meshes were set up and operated for the treatment of real municipal wastewater. Plastic carriers were added in one of the two bioreactors to generate a combination of the Integrated Fixed-film Activated Sludge (IFAS) and the SFD-MBR technologies. Overall, the two systems performed very well, achieving excellent effluent quality under steady state conditions and showing good resilience to extreme organic loading conditions. Continuous air scouring and periodical mesh cleaning by jet rinsing with tap water were effective in maintaining stable and high productivity (membrane flux around 67 L m2 h−1) over a period of 140 days. The application of the IFAS process resulted in lower production of excess sludge and improved denitrification. On the other hand, under the tested conditions the combined IFAS-SFD-MBR showed a higher tendency to mesh clogging with respect to the SFD-MBR. [ABSTRACT FROM AUTHOR] |
| Copyright of Bioresource Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
Be the first to leave a comment!
