Development of Environment-Friendly Membrane for Oily Industrial Wastewater Filtration

Abstract

Latex phase blending and crosslinking method was used in this research work to produce nitrile butadiene rubber-graphene oxide (NBR-GO) membranes. This fabrication technique is new and yields environmentally friendly membranes for oil-water separation. GO loading was varied from 0.5 to 2.0 part per hundred-part rubber (pphr) to study its effect on the performance of NBR-GO membrane. GO was found to alter the surface morphology of the NBR matrix by introducing creases and fold on its surface, which then increases the permeation flux and rejection rate efficiency of the membrane. X-Ray diffraction analysis proves that GO was well dispersed in the membrane due to the non-existence of GO fingerprint diffraction peak at 2θ value of 10–12° in the membrane samples. The membrane filled with 2.0 pphr GO has the capability to permeate 7688.54 Lm−2 h−1 water at operating pressure of 0.3 bar with the corresponding rejection rate of oil recorded at 94.89%. As the GO loading increases from 0.5 to 2.0 pphr, fouling on the membrane surface also increases from Rt value of 45.03% to 87.96%. However, 100% recovery on membrane performance could be achieved by chemical backwashing.

Characterization and Innovative Process of Oily Wastewater from Substations

“…Conversely, smaller particles with low po-rosity lead to the reverse. Therefore, for a speci c water quality, meticulous gradation experiments are necessary to determine the appropriate lter media gradation and porosity [21]. With arti cial preparation of raw water and addition of clay in tap water, the removal rates of SS for each stage, COD removal rates, oil removal rates, etc., were measured.…”

Natural Fiber-Reinforced Thermoplastic ENR/PVC Composites as Potential Membrane Technology in Industrial Wastewater Treatment: A Review

“…Bicy et al [148] investigated the interfacial tuning and designer morphologies of microporous membranes made from nanocomposites of polypropylene and natural rubber. Alquraish et al [149] use the latex phase blending and crosslinking technique to make nitrile butadiene rubbergraphene oxide (NBR-GO) membranes. This new way of membrane fabrication is good for the environment and makes membranes that separate oil and water.…”