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Effect of hydraulic retention time on the performance of a hybrid moving bed biofilm reactor-membrane bioreactor system for micropollutants removal from municipal wastewater

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posted on 2024-11-15, 08:19 authored by Qi Jiang, Hao H Ngo, Long Nghiem, Faisal HaiFaisal Hai, William PriceWilliam Price, Jian Zhang, Shuang Liang, L J Deng, Wenshan Guo
This study evaluated micropollutants removal and membrane fouling behaviour of a hybrid moving bed biofilm reactor-membrane bioreactor (MBBR-MBR) system at four different hydraulic retention times (HRTs) (24, 18, 12 and 6 h). The results revealed that HRT of 18 h was the optimal condition regarding the removal of most selected micropollutants. As the primary removal mechanism in the hybrid system was biodegradation, the attached growth pattern was desirable for enriching slow growing bacteria and developing a diversity of biocoenosis. Thus, the efficient removal of micropollutants was obtained. In terms of membrane fouling propensity analysis, a longer HRT (e.g. HRTs of 24 and 18 h) could significantly mitigate membrane fouling when compared with the shortest HRT of 6 h. Hence, enhanced system performance could be achieved when the MBBR-MBR system was operated at HRT of 18 h.

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Citation

Jiang, Q., Ngo, H. H., Nghiem, L. D., Hai, F. I., Price, W. E., Zhang, J., Liang, S., Deng, L. & Guo, W. (2018). Effect of hydraulic retention time on the performance of a hybrid moving bed biofilm reactor-membrane bioreactor system for micropollutants removal from municipal wastewater. Bioresource Technology, 247 1228-1232.

Journal title

Bioresource Technology

Volume

247

Pagination

1228-1232

Language

English

RIS ID

116690

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