A membrane bioreactor (MBR) has membranes comprising a supporting structure. A supply unit doses a sorbent such as powdered activated carbon (PAC) into the MBR. The PAC is maintained at a concentration in the mixed liquor of 200 mg/L or more. Mixed liquor with the sorbent particles recirculates within the MBR at a flow rate of at least twice the feed flow rate. Air bubbles are provided to scour the membranes including during at least part of a permeation step. The sorbent particles are present in the mixed liquor and contact the membranes. Bioaugmentation products may be immobilized on PAC or other carriers and then added to an MBR or other bioreactors.
申请公布号
EP2928835(A4)
申请公布日期
2017.01.25
申请号
EP20120889644
申请日期
2012.12.07
申请人
General Electric Company
发明人
WANG, Sijing;ADAMS, Nicholas William H.;PEETERS, Jeffrey Gerard;SYED, Wajahat Hussain;WANG, Lei;ZHOU, Ying