Membrane bioreactor-reverse osmosis process (MBR-RO) is widely applied in wastewater treatment, especially when high-quality treated water needed. Although MBR shows better performances the removal of pathogens than conventional activated sludge process, stable operation RO latter step MBR-RO depends on residual bacteria filtrate microfiltration membranes. Species and sizes found with 0.2 μm po...

The typical smelting wastewater is with characteristics of high concentration TDS, conductivity, heavy metal ions, and low COD. ultrafiltration (UF) reverse osmosis (RO) an attractive technology to reclaim reuse this kind wastewater. In work, Coagulation-flocculation-sedimentation (CFS) multi-media filter (MMF) was used as the pretreatment processes. UF, RO (CRO) processes applied advanced trea...

We present a simple and rapid methodology to characterize the water and solute permeability coefficients (A and B, respectively) and structural parameter (S) of forward osmosis (FO) membranes. The methodology comprises a single FO experiment divided into four stages, each using a different concentration of draw solution. The experimental water and reverse salt fluxes measured in each stage are ...

Membrane fouling properties and different physical cleaning methods for forward osmosis (FO) and reverse osmosis (RO) laboratory-scale filtration systems were investigated. The membrane fouling, with respect to flux reduction, was lower in FO than in RO when testing an activated sludge effluent. Crossflow velocity, air-scouring, osmotic backwashing and effect of a spacer were compared to determ...

In this study, activated carbon (AC) and magnetic (MAC) were prepared from Dalbergia sissoo sawdust for the removal of antibiotic Azithromycin (AZM) aqueous solution. The effect initial concentration, contact time, pH, adsorbent dosage, temperature investigated both adsorbents. optimum AZM pH adsorbents dosages found to be 80 mg/L, 120 min, 6 7 (pH, respectively, AC MAC), 0.1 g (for respectivel...

The economics membrane distillation (MD) and common seawater desalination methods including multi effect distillation (MED), multistage flash (MSF) and reverse osmosis (RO) are compared. MD also has the opportunity to enhance RO recovery, demonstrated experimentally on RO concentrate from groundwater. MD concentrated RO brine to 361,000 mg/L total dissolved solids, an order of magnitude more sa...

With the rapidly increasing demands on water resources, fresh water shortage has become an important issue affecting the economic and social development in many countries. As one of the main technologies for producing fresh water from saline water and other wastewater sources, reverse osmosis (RO) has been widely used so far. However, a major challenge facing widespread application of RO techno...

It is now inevitable to reuse the wastewater in urban areas terms of climate change and circular economy. The aim this study evaluate secondary treatment as irrigation water and/or industrial process by pilot-scale ultrafiltration (UF) reverse osmosis (RO) units. conductivity, pH, organic matter, heavy metals, micropollutants, coliform bacteria sodium hazard assessments were analysedduring oper...

Reverse osmosis (RO) is the most promising membrane technology in organic micropollutants (MPs) removal of drinking water treatment. For 78 MPs, passage and were evaluated with an ESPA3 RO robustness against MPs was studied. The classified according to their charge hydrophobicity. results showed that size neutral compounds negatively correlated passage. This correlation weaker for hydrophobic t...