This study investigates the performance of an integrated osmotic and microfiltration membrane bioreactor (O/MF-MBR) system for wastewater treatment and reclamation. The O/MF-MBR system simultaneously used microfiltration (MF) and forward osmosis (FO) membranes to extract water from the mixed liquor of an aerobic bioreactor. The MF membrane facilitated the bleeding of dissolved inorganic salts a...

Growing global water demand has brought desalination technologies to the forefront for freshwater production from nontraditional sources. Among these, forward osmosis (FO) is a promising two-step process (draw dilution and regeneration), but it often overlooked due energy requirements associated with draw regeneration. To address this limiting factor, we demonstrate FO using thermally responsiv...

Growing uncertainty in the future availability of freshwater sources has led to an increase installations for desalination seawater. Reverse osmosis (RO), currently most widely adopted technique, caused environmental concerns over high associated greenhouse gas emissions and generation large amounts chemicals-containing brine. Significant consumption electricity RO is additional challenge, part...

Thin film composite (TFC) membranes easily suffer from fouling induced by oil and other pollutants during forward osmosis (FO) due to the relatively hydrophobic chemistry rough structure of polyamide (PA). To achieve comprehensive anti-fouling properties, poly(2-methacryloyloxyethyl phosphorylcholine-co-2-aminoethyl methacrylate hydrochloride) (MPC-co-AEMA) was immobilized on top a polyketone (...

In this paper, we perform two-dimensional simulations of cross-flow forward osmosis (FO) membrane modules in the presence of draw and feed channel spacers. For this purpose, the equations corresponding to the conservation of mass, momentum, and convection-diffusion for the mass fraction of solute are solved using a commercial finite volume flow solver. We consider six configurations of channel ...

Forward osmosis (FO) is an emerging membrane separation process that continues to be tested and implemented in various industrial water and wastewater treatment applications. The growing interests in the technology have prompted laboratories and manufacturers to adopt standard testing methods to ensure accurate comparison of membrane performance under laboratory-controlled conditions; however, ...

The forward osmosis (FO) is an emerging technique for high quality concentration of liquid foods. Polyphenols are natural compounds with important health function in fruit and vegetable juice. In this study, the impacts membrane property, feed solution (FS) pH value, draw (DS) composition concentration, fouling on rejections 9 food polyphenols by FO were investigated. Polyphenol rejection was m...

Long-term operation of a forward osmosis – reverse (FO–RO) closed loop pilot plant is presented. The system was fed with single batch clean tap water into which organic micropollutants were spiked; RO permeate recirculated to the FO feed. operated in two different runs, NaCl and MgCl2 as draw solutes. Over course trials, migrated solution closed-loop, reaching an equilibrium This implies that t...

Forward osmosis (FO) plays an increasingly important role in membrane processes because of its advantages compared to traditional pressure-driven processes. There are different types water-selective FO membranes. In this study, a biomimetic hollow fiber module comprising active layer polyamide thin film composite (TFC) with integrated aquaporin proteins and effective area 0.6 m2 is used study t...

The fouling behavior of osmotically-driven forward osmosis (FO) is widely believed to be superior with respect hydraulic pressure-driven membrane applications, based on a number experiments reported in the literature. However, experimental confounders often exist, preventing fair comparison between different processes, one being deployment non-comparable membranes. This study systematically inv...