Batch reverse osmosis (BRO) systems may enable a significant reduction in energy consumption for desalination and water reuse. BRO systems operate with variable pressure, by applying only slightly more pressure than is needed to overcome the osmotic pressure and produce reverse water flux. This study explains, quantifies, and optimizes the energy-saving performance of realistic batch designs im...

The computer simulation program of a practical scale reverse electrodialysis process has been developed based on the program for saline water electrodialysis. The program is applied to compute the performance of an industrial-scale reverse electrodialysis stack (effective membrane area S = 1 m × 1 m = 1 m2, cell pair number N = 300 pairs). The stack operatingconditions are optimized. Seaw...

Osmosis is the movement of solvent across a membrane induced by a solute-concentration gradient. It is very important for cell biology. Recently, it has started finding technological applications in the emerging processes of Forward Osmosis and Pressure-Retarded Osmosis. They use ultrathin and dense membranes supported mechanically by much thicker porous layers. Until now, these processes have ...

Abstract In reverse osmosis seawater treatment process, membrane fouling can be mitigated by degrading organic pollutants present in the feed seawater. The study evaluates effectiveness of employing solar photocatalysis using TiO 2 /ZnO/H O to pretreat (RO) under irradiation. Process optimisation and performance evaluation were undertaken response surface methodology-desirability function RSM i...

Reverse osmosis is increasingly used in drinking water supply for treatment of fresh sources which can directly result high quality water. In practice reverse never applied on sources, predominantly because the occurrence membrane fouling. Strategies to control fouling without expensive and extensive pre-treatment include low flux operation, increase cross-flow velocities improved (periodic) hy...

It is well known that reverse osmosis (RO) the leading desalination technology. As an energy intensive technology, exploitation of renewable sources (RES) to power RO systems a attractive option. A strategy take advantage all available off-grid system work with under variable operating conditions. This implies additional challenges in terms water production and permeate quality, among others. B...

This paper evaluates life cycle Greenhouse Gas (GHG) emissions of a Seawater Reverse Osmosis (SWRO) desalination plant and assesses its performance under three power supply scenarios. A Life Cycle Assessment (LCA) analysis is conducted for a plant located in Perth, Western Australia (WA). Input and output flows of SWRO plant are based on literature and Perth desalination plants. The Simapro Aus...