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1. (WO2018199859) A NEW VACUUM ENHANCED OPERATION METHOD FOR FORWARD OSMOSIS MEMBRANE BIOREACTORS

Pub. No.:    WO/2018/199859    International Application No.:    PCT/TR2017/050524
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Oct 27 01:59:59 CEST 2017
IPC:
Applicants: GEBZE TEKNİK ÜNİVERSİTESİ
Inventors: ARSLAN, Serkan
KOYUNCU, İsmail
EYVAZ, Murat
IMER, Derya
ASLAN, Taha
YUKSEL, Ebubekir
Title: A NEW VACUUM ENHANCED OPERATION METHOD FOR FORWARD OSMOSIS MEMBRANE BIOREACTORS
Abstract:
The invention is related with a method by which the draw solution is circulated through the TuNFO Membrane operated in membrane bioreactors like osmotic membrane bioreactors and at the same time, the vacuum pressure used by pressure driven membrane bioreactors is applied to the membrane in adjustable ratios. The subject of invention includes the steps of filling of wastewater tank (1) with the synthetic wastewater of which content is prepared to represent a high strength commercial wastewater and feeding the synthetic wastewater from wastewater tank (1) with the help of wastewater pump (2) until the reactor (3) is filled up to 41 cm if the reactor (3) level decreases to 39 cm, transferring of draw solution from TuNFO membrane (4) to the draw solution tank (7) diluted through passing of high flux water from the reactor (3) into the membrane by means of vacuum force obtained by operating the vacuum pump (5) at higher velocities than the force pump (6) as a solution to the problem of low water flux which is based on the osmotic pressure resulted from the saltiness difference between activated sludge in the reactor (3) and draw solution circulated through the TuNFO (4) membrane.