Membrane fouling

Membrane fouling is universally accepted as one of the critical problems limiting the wider application of membranes in liquid–solid separation. The in-situ ultrasonic application is one of the promising methods for reducing the extent of concentration polarization and increasing permeate flux durin

Concentrate of nanofiltration and reverse osmosis installations is an increasing problem, especially for inland membrane installations. Introduction of membrane filtration in The Netherlands is severely hindered by the concentrate problem. Two approaches are viable for solving or reducing the concen

This study focused on reducing membrane fouling by adding different adsorbents (powder activated carbon (PAC), zeolite) or coagulants (polyamide, polyaluminum chloride) in a microfiltration process treating anaerobic digestion effluent. The results indicated that the magnitude of fouling reduction w

A novel osmotic membrane bioreactor (OsMBR) is presented. The system utilizes a submerged forward osmosis (FO) membrane module inside a bioreactor. Through osmosis, water is transported from the mixed liquor across a semi-permeable membrane, and into a draw solution (DS) with a higher osmotic pressu

In the recent past, machine learning (ML) techniques such as artificial neural networks (ANN) or genetic algorithm (GA) have been increasingly used to model membrane fouling and performance. In the present study, we select genetic programming (GP) for modeling and prediction of the membrane fouling

The direct contact membrane distillation (DCMD) applied for the concentration of the primary reverse osmosis (PRO) retentate was presented in the paper. All the experiments were carried out using the self-made hydrophobic polyvinylidene fluoride (PVDF) membranes. The DCMD process (permeate flux and

The adsorption kinetics of surfactants onto the crystal surface spin-coated with a thin layer of a model membrane material, polyethersulfone was monitored through measurements of frequency and dissipation shifts simultaneously using a quartz crystal microbalance with dissipation (QCM-D) apparatus. I

The results of microfiltration studies using inorganic TiO2/Al2O3 membranes for solutions containing yeast are reported. The aim of the research was experimental as well as mathematical analysis of the permeate flux dependence on time for cross-flow filtration combined with backflushing using permea

The results of microfiltration (MF) studies using ceramic 150 kDa membrane and model solutions containing bovine serum albumin (BSA) with and without NaCl as well as salted wastewater from fish industry are reported. The aim of the research was experimental analysis of operating parameters enabling

Vacuum membrane distillation (VMD) was employed to concentrate Ginseng extracts aqueous solution. Polytetrafluoroethylene (PTFE) micro-porous plate membranes, with average pore size of 0.2 mm and thickness of 50 mm, were used in VMD process. The effects of operating temperature, vacuum pressure and