RO membrane

• Adsorption/fouling-layer model analyzes the flux decline during RO filtration. • The model provided a qualitative appreciation of the flux decline. • The factors of filtration time and membrane flux are considered in the fouling model. • The main interfacial interaction in each fouling step was discuss

• Chemical heterogeneity of RO membranes was first investigated using AFM. • AFM probes were designed by employing negative CML and positive AAL colloids. • Chemical heterogeneity was more pronounced with AAL probe than CML probe. • RO membranes showed different charge distribution despite similar ze

Reverse osmosis (RO) based desalination is one of the most important and widely recognized technologies for production of fresh water from saline water. Since its conception and initiation, a significant development has been witnessed in this technology w.r.t. materials, synthesis techniques, modifica

We developed a real-time aerosolization method combined with membrane filtration technique to determine size and number of dissolved and suspended colloid nanoparticles in water. Feed water before and after being treated by MF, UF or NF membranes was in-situ aerosolized and dried, and size and numbe

Special emphasis has recently laid on the biofouling on RO membrane surface for desalination process to provide a better insight into the microbial community composing of biofilms. However, it appears that conventional RFLP tool, which is used to quantify and identify bacterial population, is ineffi

Biofoulants by autopsy of RO membrane and microbiological quality of the intake water were investigated with the samples obtained from existing RO desalination plant. The analysis of organic matters of the biofilm on the membrane surface showed that macromolecular substances such as proteins and car

A nanomembrane (NTR 729HF) and three different types of reverse osmosis (RO) membranes (CPA2, LFC1, and ESPA1) were tested for the treatment of high concentration of nitrate wastewater from stainless steel – industry. All the tested RO membranes showed higher rejection rates (90–99% at 1000–60 mg/L

RO plant operators, end-users, membrane manufacturers and system suppliers have been facing two major problems since the advent of commercial membrane technology applications for water desalination utilizing reverse osmosis (RO) and other membrane processes: how to reliably monitor their membrane sy

In this study a membrane bioreactor (MBR) using white-rot fungi was used for the decolorization of dye solutions. The decolorization of dye solutions by Trametes versicolor KCTC 16781 and membrane filtration were combined, and the applicability of this process was investigated using reactive dye sol

In the chromium tanning process leather consumes 60–80% of the applied chromium salt and the rest is usually discharged into sewage without adequate treatment, causing serious environmental impact. Chemical analysis of the spent chromium effluents from two local medium-size tannery shops indicated t