Nanofiltration (NF) is an attractive option for the treatment of landfill leachate. However, membrane fouling can be a major obstacle in the implementation of this technology. In this study, bench-scale filtration experiments were carried out to study the fouling behaviour during the NF of a synthetic landfill leachate. The results indicate that calcium in combination with organic matter could ...

OBJECTIVES: The performance of spiral-wound nanofiltration (NF) and ultrafiltration (UF) membranes was investigated in terms of natural organic matter (NOM) rejection and associated NOM fouling. The study objectives focused on • demonstrating the effects of both hydrophobic and electrostatic interactions between NOM components and the membrane surface • determining influential factors (water qu...

Abstract The present work investigated the impact of ultrafiltration (UF) and nanofiltration (NF) membranes on recovery fractionation polyphenolic compounds polysaccharides from Sangiovese Cabernet Sauvignon wine lees. A laboratory-made flat-sheet membrane in cellulose acetate (CA400-38) was used UF treatment lees; three (CA316, CA316-70, CA400-22) a polyamide commercial (NF90) were NF All char...

Separation of amoxicillin from pharmaceutical wastewater by nanofiltration (NF) membrane has been investigated in this study. For this purpose a membrane system including a polyamide spiral wound NF membrane was evaluated for the treatment of amoxicillin wastewater. The effects of operating conditions such as flow rate, pressure and concentration of amoxicillin and COD in the feed, on the effic...

High-pressure membrane process is one of the cost-effective technologies for the treatment of groundwater containing excessive dissolved solids. This paper reports a pilot study in treating a typical groundwater in Huaibei Plain containing excessive sodium, sulfate and fluoride ions. Three membrane systems were set up and two brands of reverse osmosis (RO), four low-pressure RO (LPRO) and one t...

Current wastewater treatment is not designed for the elimination of micropollutants (MP) and therefore these are released into aquatic environment by means municipal wastewater. The MicroStop project investigates a combination fixed-bed reactor (FBR) nanofiltration plant (NF) organic MP. NF acts as barrier MP while biological degradation pollutants to be induced in FBR. A simultaneous retentate...

Abstract Emissions of organic compounds, heavy metals and chemicals used in the ceramic industry cause significant inorganic pollution water. The effluent must be treated before it is discharged into a water body. International EU laws control chemical oxygen demand (COD) wastewater. Conventional technologies, such as sedimentation, flocculation biological treatment, have lots drawbacks, wherea...

Nanofiltration (NF) is promising for replacing reverse osmosis boron removal more effectively and at a higher energy efficiency. However, the interplay of steric charge effects underlying rejection behaviors solutes smaller than membrane pore size remained incompletely understood, which impedes implementation. This study investigated influence pH NaCl concentration on boric acid/borate by Desal...

the effects of three levels of transmembrane pressure (1.0, 1.5 and 2.0 mpa) as well as three temperature  levels of: 30, 40 and 50°c on the efficiency of nanofiltration process of waste brine from the regeneration of ion exchange resins at sugar industry (to recover water and sodium chloride) were investigated throughout the current study. the polyamide tubular afc40 membrane manufactured by p...

Water is the material basis for living organisms and one of primary resources to maintain sustainable development earth’s ecological environment. As a water purification method, nanofiltration (NF) separation technology has been widely considered by researchers in recent years. However, most studies on NF literature focus membrane modification, there are only few reviews available. In this pape...