Membrane

A novel configuration of a photocatalytic slurry reactor using low-pressure mercury lamps coupled with membrane filtration was proposed, and treatment of polluted river water with a pilot plant of this system was investigated. Both + COD and NH4 -N in the river water were simultaneously removed. Und

Permeate flux decline is a major item when considering pressure driven membrane filtration. The decline is a result of the deposition of (dispersed) feed materials as a layer on the membrane surface. This means loss of production of permeate or, when applying a higher compensating pressure, loss of

This laboratory scale study investigated the effectiveness of ultrafiltration (UF) technology for treatment of refinery wastewater using powdered activated carbons (PACs) and coagulant. Flux decline, removal rates of total organic compounds (TOCs) and the possibilities of membrane cleaning during in

This research focused on the filtration performance of a membrane-coupled fermenter system for dissolved organics recovery from liquid organic sludge. Over the range 0.1–5 µm, the magnitude of total membrane resistance (Rt) is ranged as follows in the order: 0.1 µm>0.2 µm>0.5 µm>1 µm>2 µm>5 µm. The

In this study the secondary effluent after ODOBEZ system processing from a textile dyeing factory was recycled and reused in a dyeing bath. A pilot-scale combined system of a bio-activated carbon reactor (BAC) and membrane separation module (MS) was constructed and studied in detail. Through the eff

The filtration tests of electrolyte solutions performed with different ceramic membranes show that salt rejection depends on pH, salt nature and concentration. A simple correlation between streaming potential and rejection rates exits and confirms that streaming potential is a relevant parameter to

Excess fluoride in drinking water is harmful for human health, so it is necessary to be removed. In this study the potential of a reverse osmosis (RO) membrane for defluoridation of underground water samples at different solute concentrations was studied. Because of the variation in feed water compo

In this work, we report about cellulose acetate nanofiltration (NF) membrane preparation according to the phase inversion process. Pore size was monitored by using dope solutions of two polymer concentrations (20 and 22 wt-%) and annealing temperatures from 60–80°C. Membrane characterization include

A combined system has been devised with a liquid–liquid extraction–re-extraction reactor where the extraction compartment and the re-extraction compartment are put in contact with one another through the organic phase composed of an extractant and a diluent. We have applied this process to a system