Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7079050 | Bioresource Technology | 2014 | 7 Pages |
Abstract
To address the water scarcity issue and advance the traditional drinking water treatment technique, a powdered activated carbon-amended membrane bioreactor (PAC-MBR) is proposed for micro-polluted surface water treatment. A pilot-scale study was carried out by initially dosing different amounts of PAC into the MBR. Comparative results showed that 2Â g/L performed the best among 0, 1, 2 and 3Â g/L PAC-MBR regarding organic matter and ammonia removal as well as membrane flux sustainability. 1Â g/L PAC-MBR exhibited a marginal improvement in pollutant removal compared to the non-PAC system. The accumulation of organic matter in the bulk mixture of 3Â g/L PAC-MBR led to poorer organic removal and severer membrane fouling. Molecular weight distribution of the bulk liquid in 2Â g/L PAC-MBR revealed the synergistic effects of PAC adsorption/biodegradation and membrane rejection on organic matter removal. Additionally, a lower amount of soluble extracellular polymer substances in the bulk can be secured in 21Â days operation.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Jingyi Hu, Ran Shang, Huiping Deng, Sebastiaan G.J. Heijman, Luuk C. Rietveld,