Permeate flux decline during UF of oily wastewater: Experimental and modeling

Effect of operating conditions on the performances of multichannel ceramic UF membranes for textile mercerization wastewater treatment

“…This phenomenon is most probably the consequence of viscosity drop due to temperature change and as a result of better diffusion of particles into the membrane pores. [20] Additionally, reduced viscosity will lessen drag force and the capability to detach adsorbed particles.…”

Treatment of model oily waste water by microfiltration

“…The problem becomes more pronounced when surfactants are present in waste water, as these enhance the oily emulsion stability [6]. Several studies have reported on the use of membrane filtration for the treatment of oil; however most studies focused on the use of ultrafiltration (UF) and microfiltration (MF) [7]- [10]. Only a few studies have been performed on the membrane filtration of high emulsifier-containing oil-in-water (o/w) emulsions.…”

PES and PES/PAN Blend Ultrafiltration Hollow Fiber Membranes for Oily Wastewater Treatment: Preparation, Experimental Investigation, Fouling, and Modeling

“…where ε is the hollow fiber membrane porosity; W 0 and W 1 are the weight of wet and dry hollow fiber membranes (g), respectively; ρ w is the density of pure water at room temperature (g/cm 3 ), A is the effective area of the hollow fiber membrane (cm 2 ); and b is the thickness (mm) of the hollow fiber membrane. To minimize the experimental errors, the hollow fiber membrane porosity of each sample was measured three times and the results were reported as average.…”

“…1,2 For example, industrial oily wastewater discharge from Iranian industries (e.g., Tehran Oil Refining Company) exhibits that there are over 100 plants in Iran that are discharging these industrial oily wastewater over 1000 m 3 /day. 3 Main industrial sources of oily wastewater are oil refineries, oil distribution companies, petrochemical complexes, food producers, textile, machining factories, and metal manufacturers. These industrial oily wastewaters are usually treated by a number of physical, chemical, and biological methods in wastewater treatment plants, before being disposed in environment or reused as agricultural water.…”