Lipid-rich bacterial biomass production using refinery wastewater in a bubble column bioreactor for bio-oil conversion by hydrothermal liquefaction

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

“…Raw refinery wastewater was collected from a refinery plant and characterized as follows: 4500 mg L −1 COD, pH 10.5, 1253 mg L −1 total dissolved solids (TDS), and 558 mg L −1 total suspended solids (TSS) 14, 15.…”

“…R. opacus PD630 is known to degrade toxic phenolics and recalcitrant compounds present in refinery wastewater 14, 15, 27. Seed cultures of the oleaginous hydrocarbonoclastic bacterium R. opacus were prepared from Nutrient Broth (NB) agar slants (1.8 % (w/v)) and subcultured regularly by growing in 250‐mL Erlenmeyer flasks containing liquid medium for 48 h at 30 °C and 120 rpm.…”

“…Rhodococcus species also produce surfactants, polymers, flocculants, and various pigments. Rhodococcus opacus is known to degrade complex polycyclic aromatic hydrocarbons (PAH) in refinery wastewater as well as in dairy and paper‐and‐pulp wastewater treatment 12–15. However, an integrated approach involving the bacterium in a membrane bioreactor setup has not been reported thus far.…”

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

“…Moreover, inhibition due to toxic compounds present in wastewater, prolonged sludge settling time, start-up difficulties, formation of scum-foam, etc. are some In the recent literature, refinery wastewater treatment by biological treatment using Rhodococcus opacus biomass for degradation of hydrocarbons and recalcitrant compounds was followed by membrane filtration (physical method) (Paul et al, 2019(Paul et al, , 2020. In another study, El-Naas et al (2014) reported sequential treatment of PRWW in three steps starting with electrocoagulation followed by biological treatment and adsorption.…”

“…In the recent literature, refinery wastewater treatment by biological treatment using Rhodococcus opacus biomass for degradation of hydrocarbons and recalcitrant compounds was followed by membrane filtration (physical method) (Paul et al., 2019, 2020). In another study, El‐Naas et al.…”