Bio-oil production by hydrothermal liquefaction of Rhodococcus opacus biomass utilizing refinery wastewater: Biomass valorization and process optimization

Paul, Tanushree; Baskaran, Divya; Pakshirajan, Kannan; Pugazhenthi, G.; Rajamanickam, Ravi

doi:10.1016/j.eti.2020.101326

Cited by 15 publications

(5 citation statements)

References 37 publications

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“…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.…”

Section: Methodsmentioning

confidence: 99%

“…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.…”

Section: Refinery Wastewater Characterization and R Opacus Seed Cultu...mentioning

confidence: 99%

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

et al. 2022

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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.

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Section: Methodsmentioning

confidence: 99%

Section: Refinery Wastewater Characterization and R Opacus Seed Cultu...mentioning

confidence: 99%

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

et al. 2022

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“…For the synthesis of electrodes especially for carbon anodes, lignin is used as a precursor for activated carbon and grapheme preparation. An interconnected three‐dimensional structure of carbonized lignin for the insertion of lithium resulted in a high specific capacity, high stable cycling and high power and was found to be promising for several energy applications 12,84 …”

Section: Applications Of Incorporation Of Lignin In Polymeric Materialsmentioning

confidence: 99%

“…An interconnected three-dimensional structure of carbonized lignin for the insertion of lithium resulted in a high specific capacity, high stable cycling and high power and was found to be promising for several energy applications. 12,84…”

Section: Lignin For Carbon Fibers and Activated Carbonmentioning

confidence: 99%

Perspectives of biomass based lignin to value added chemicals in biorefineries: challenges, extraction strategies and applications

Tyagi

Sarma

2022

Biofuels Bioprod Bioref

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Lignin transformation has significant potential to produce high-quality platform chemicals and value-added products. Extraction techniques and techniques for processing lignin to lignin-derived dimers and trimers and other phenolic compounds have recently attracted the attention of the scientific community. Exploring the potential of the most abundant sources of bio-aromatics enhances the profitability and efficiency of the biorefinery process and reduces dependence on conventional resources. Successful lignin transformation entails the development of steps to overcome the following challenges: (i) the pretreatment of biomass followed by the separation of lignin to reduce crystallinity, and the reduction of the complex chemistry of biomass to produce lignin with a high degree of purity, and (ii) advances in chemical analysis for precise in situ lignin characterization during depolymerization. To bring about technological advances in the bio-based economy, the utilization of sustainable resources for the production of value-added products is essential. The valorization of lignin via cost-effective and carbon-neutral techniques has provided remarkable opportunities, including opportunities for commercialization. The life cycle analysis of lignin valorization to manufacture value-added products from surplus biomass is central if maximum use is to be made of agroresidues for such purposes.

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“…The influence of this water discharge consists of toxic material accumulation, eutrophication, dissolved oxygen in to the sediment and water (Paul et al, 2021). The source contamination of drinking and ground water influences the health life in the community (Yuliwati et al, 2011).…”

Section: Characteristics Of Refinery Wastewatermentioning

confidence: 99%

Characteristics, treatment techniques, and operational limitations for refinery wastewater: Review

Shuokr¹,

Sazan²

2021

Recyc & Sust Dev

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Large quantities of wastewater generate from refineries in the process of crude oil usage, distillation, and cooling systems. The wastewater samples need to be treated before disposing into the environment. Disposal of the untreated refinery wastewater causes problems for the water sources and environment. The aim of this work was to study the characteristics, treatment techniques, and limitations of refinery wastewater treatment. A number of tables were prepared to summarize and review wastewater characteristics, treatment process, and the operational limitations. Results revealed that values of some parameters such as biochemical oxygen demand (BOD), chemical oxygen demand (COD), phenols, oil and grease, and total suspended solids (TSS) were 40.25 mg/L to 8,000 mg/L, 80 mg/L to 21,000 mg/L, 3.5 mg/L to 128 mg/L, 12.7 mg/L to 50,000 mg/L, and 22.8 to 2,580 mg/L, respectively. Numerous treatment technologies were used for the treatment of refinery wastewater. Treatment techniques have benefits, weaknesses, and operational limitations. Most amount of the TSS, oil and grease, organic materials are eliminated in the primary and secondary treatment units. Tertiary/Advanced treatment units are necessary for removal of the remaining portions of the contaminants, heavy metals, nitrogen compounds, and phosphorus. Combination of physical, chemical and biological treatment techniques increase removal efficiency of the contaminants.

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Bio-oil production by hydrothermal liquefaction of Rhodococcus opacus biomass utilizing refinery wastewater: Biomass valorization and process optimization

Cited by 15 publications

References 37 publications

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

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

Perspectives of biomass based lignin to value added chemicals in biorefineries: challenges, extraction strategies and applications

Characteristics, treatment techniques, and operational limitations for refinery wastewater: Review

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