Reuse Potential of Refinery Wastewater Treated Using a Two‐Stage Submerged Membrane Bioreactor

Abstract

Refinery wastewater treatment was performed using a novel submerged tubular ceramic membrane bioreactor (STMBR) with the oleaginous hydrocarbonoclastic bacterium Rhodococcus opacus. A membrane‐based flux study with the STMBR was carried out to assess the performance of the tubular ceramic membrane. Continuous experiments with the STMBR achieved a maximum chemical oxygen demand (COD) removal of 84 %, with an average flux of 0.4 × 10−3 m3m−2s−1. To further enhance the COD removal efficiency, two STMBR were operated under the optimum conditions. Complete COD removal along with 2.98 g L−1 biomass growth was achieved during two‐stage STMBR operation. Furthermore, a toxicity assessment of the permeate water established its reuse potential.

Effect of Copper Oxide Nanoparticles on the Performance of Polyvinyl Chloride Membranes

“…These hydrophilic nanoparticles were also found to increase the intensity of membrane penetration, which causes the membranes to keep onto more water. Additionally, the percentage of water content reduced slightly with the addition of 2 wt % compared to 1.5 wt % might be due to the agglomeration of nanoparticles [38][39][40].…”

A review on novel and hybrid/integrated reactor configurations for the removal of recalcitrant organics from petroleum refinery wastewater

“…Many studies have been reported on bioreactor working conditions for achieving high treatment efficiency and low sludge production in ASP. However, the recent focus is on the use of a membrane in the bioreactor, which serves to retain the sludge or microorganisms as well as improve the removal efficiency (Paul et al., 2022).…”