Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Oily sludge generated by the petroleum industry is not only an environmental hazard, but since it contains crude oil too, it is a valuable resource as well. This study demonstrates a methodology for the valorization of the oily sludge that allows the recovery of oil fractions by the action of microbes producing surface-active metabolites. Two bacterial isolates were used in the study that were producing different biosurfactants, identified via FTIR analysis as well as through genomic mapping of the biosurfactant pathways using RAST, ANTISMASH 7.0, STRING databases. Serratia spp. AKBS12, produced a mono-rhamnolipid, while Acinetobacter spp. AKBS16, produced emulsan. Although recovery efficiency of both biosurfactants was similar, the recovery profile with respect to the class of hydrocarbons differed. The rhamnolipid produced by Serratia spp. AKBS12 extracted mono-chained paraffins and linear alkanes, while emulsan, produced by Acinetobacter spp. AKBS16 could extract heavier paraffins. The extraction procedure is simple and involves mixing the biosurfactant with oily sludge at a temperature of 30 °C with an incubation of 9 days. Sulphuric acid precipitation releases the oil trapped in the oily sludge. The study is the first step in developing user-friendly, innovative technologies that can be linked to the concept of a circular economy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11274-023-03759-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Research Progress of Surfactant-Free Microemulsions: A Review.
Crit Rev Anal Chem
September 2025
Department of Civil Engineering, Architecture and Engineering, Northeast Petroleum University, Daqing, China.
Surfactant is usually considered the key component to form microemulsion. surfactant-based microemulsion (SBME) can also be called traditional microemulsion. It has a wide range of applications.
View Article and Find Full Text PDFSynergistic micro-phyto-vermi remediation: Integrated bioprocess approach for sustainable treatment of petroleum contaminated soil and industrial oily sludge.
J Environ Manage
August 2025
CSIR-North East Institute of Science and Technology, Jorhat, 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India. Electronic address:
Petroleum waste pollution presents a major environmental challenge, highlighting the need for sustainable and efficient remediation strategies. Bioremediation has emerged as a promising eco-friendly solution that utilizes microbial communities to degrade harmful hydrocarbons. Among various bioremediation approaches, composting is an established organic waste treatment method that has been effectively adapted for managing petroleum-contaminated sludge.
View Article and Find Full Text PDFAn Amphiphilic Ionic Polymer-Modified Wood-Based Membrane for Efficient Oil-Water Separation.
Langmuir
August 2025
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China.
Global water security is facing unprecedented challenges, among which oil spills, illegal discharge of industrial wastewater, and uncontrolled discharge of oily wastewater from domestic sewage are particularly prominent. These sources of pollution not only lead to the continuous deterioration of water resource quality but also pose multiple threats to the ecological balance and human health and safety. In this background, the development of efficient oily wastewater separation and recycling technologies has become a key topic to be solved in the current environmental engineering field.
View Article and Find Full Text PDFA photocatalytic and superhydrophobic self-cleaning nanocellulose-based membrane based on Cu-MOF for highly efficient oil/water separation, the removal of dyes and anti-biofouling towards sewage remediation.
Int J Biol Macromol
September 2025
School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China.
Multifunctional superhydrophobic nanocellulose-based membranes for self-cleaning, oil/water separation, photocatalytic degradation, and anti-biofouling are in great demand for sewage treatment. This demand led to the in situ deposition of Cu-MOF micro/nanoparticles on the surface of CB membranes, followed by stearic acid (STA) modification to provide excellent superhydrophobicity, which enables effective oil/water separation, photocatalytic degradation, and anti-biofouling. The CB/Cu-MOF/STA membranes created in this manner demonstrated good superhydrophobicity with a water contact angle of 160 ± 2° and superoleophobicity with an oil contact angle of 0°.
View Article and Find Full Text PDFSteel slag catalyzed municipal sludge pyrolysis to produce low-pollution gas, biochar, and bio-oil products.
J Environ Manage
September 2025
School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, 523808, China.
This study examined the influence of steel slag powder as an additive on the pyrolysis characteristics of sludge, including the activation energy of the reactions, in addition to inhibiting the escape of nitrogen-containing and sulfur-containing gases, while improving the bio-oil fraction. There were three methods used to calculate the average activation energy of sludge: Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose, and Friedman. It can be concluded that the addition of steel slag powder accelerated sludge pyrolysis and that the kinetic modeling during the primary pyrolysis stages occurred through a reaction-level mechanism model (Fn).
View Article and Find Full Text PDF