Forward osmosis membrane processes for wastewater bioremediation: Research needs
Journal
Bioresource Technology
Journal Volume
290
Date Issued
2019
Author(s)
Hsieh, M.-H.
Abstract
Increasing research and development works have been made to develop forward osmosis (FO) processes as a cost-effective substitute for energy intensive water vacuum suction facility in submerged membrane bioreactor (MBR) applications. Perceived to be a spontaneous water driven process without external applied pressures, the FO has been applied in lab and pilot scales for wastewater bioremediation. This paper reviewed the state-of-the-art developments on the FO unit, the process, and ways of enhancing process performance, particularly on the aspects of flux enhancement, flow resistance reduction, and draw solute with low reverse salt diffusion, which are relevant to enhanced osmotic MBR performance. The perspective to realize the use of FO processes in revision of currently existing energy intensive osmotic MBR processes is discussed with research needs being highlighted.
Other Subjects
Biological water treatment; Bioremediation; Biotechnology; Cost effectiveness; Mechanisms; Osmosis; Economy; Forward osmosis; Forward osmosis membranes; Membrane bioreactor; Research and development; Reverse salt diffusions; Submerged membrane bioreactors; Waste water bioremediation; Bioreactors; bioreactor; bioremediation; diffusion; economic analysis; membrane; osmosis; research and development; research work; wastewater treatment; bioremediation; desalination; economic aspect; forward osmosis; membrane; municipal wastewater; osmosis; osmotic pressure; permeability; phase separation; pressure; priority journal; solute; waste water management; water permeability; artificial membrane; bioremediation; osmosis; waste water; water management; Biodegradation, Environmental; Membranes, Artificial; Osmosis; Waste Water; Water Purification
Type
review