An aerated and fluidized bed membrane bioreactor for effective wastewater treatment with low membrane fouling

Autor: Kyoung Yeol Kim, Hiroyuki Kashima, Yaoli Ye, Bruce E. Logan, Pascal E. Saikaly, Pei-Ying Hong, Nicole LaBarge
Rok vydání: 2016
Předmět:
Zdroj: Environmental Science: Water Research & Technology. 2:994-1003
ISSN: 2053-1419
2053-1400
DOI: 10.1039/c6ew00203j
Popis: Anaerobic fluidized bed membrane bioreactors (AFMBRs) use granular activated carbon (GAC) particles suspended by recirculation to effectively treat low strength wastewaters (∼100–200 mg L−1, chemical oxygen demand, COD), but the effluent can contain dissolved methane. An aerobic fluidized bed membrane bioreactor (AOFMBR) was developed to avoid methane production and the need for wastewater recirculation by using rising air bubbles to suspend GAC particles. The performance of the AOFMBR was compared to an AFMBR and a conventional aerobic membrane bioreactor (AeMBR) for domestic wastewater treatment over 130 d at ambient temperatures (fixed hydraulic retention time of 1.3 h). The effluent of the AOFMBR had a COD of 20 ± 8 mg L−1, and a turbidity of
Databáze: OpenAIRE