Nowadays, petroleum hydrocarbon pollutants keep on being a genuine natural worry because of the managed development of petroleum oil extraction, related generation which ends up noticeably with ecological issue. The expanding in industrial…
Degradation of petroleum hydrocarbons (HC) in sediments is often limited by the availability of electron acceptors. By allowing long-distance electron transport (LDET) between anoxic sediments and oxic overlying water, bioelectrochemical snorkels may…
Oil spills in the subarctic marine environment off the coast of Labrador, Canada, are increasingly likely due to potential oil production and increases in ship traffic in the region. To understand the microbiome response and how nutrient…
BACKGROUND: About 25,000 oil tankers are transported annually through the Persian Gulf in Iran. Therefore, oil pollution in this region is very high. Research on the use of marine bacteria to degrade crude oil has yielded good results in recent…
Sustainable treatment of petroleum oil sludge still remains as a major challenge to petroleum refineries. Bioremediation is the promising technology involving bacteria for simultaneous production of biosurfactant and followed by degradation of…
The matured reservoirs all over the world leads on the way to highly viscous crude oil. The heavy and waxy oil would act as an alternative to conventional reserves, only with the application of a technology to reduce the viscosity. This study aims to…
Biochar has been widely applied for the remediation of petroleum-contaminated soil. However, the effect of biochar on the transport of petroleum degradation bacteria has not been studied. A typical Gram-positive petroleum degradation…
Because of the presence of wax components in waxy crude oil, it is easy to precipitate wax crystals, precipitate wax crystals, wax crystal precipitation plug the pipeline, reducing the transmission radius, serious accidents such as pipe stoppage will…
Wax can increase the viscosity of waxy crude oil, also precipitates and accumulates on the pipe wall, reducing the efficiency of pipe transportation. A strain of surfactant producing hydrocarbon degrading bacteria F-1 was isolated from crude oil…
The article discusses the results of biomonitoring research at the Underground Gas Storage (UGS). Hydrogen sulphide, as one of the products of microbiological reaction and transformation, as well as a product of chemical reactions in rocks, is a…
Low energy-input alternatives based on locally available products are needed for treating petroleum-hydrocarbon spills in northern regions. We tested the efficacy of three local biological components (municipal compost, white-rot fungus: Pleurotus…
Fungal bioremediation is a promising technique for the cleanup of sites contaminated with polycyclic aromatic hydrocarbons (PAHs). However, due to limited understanding of the composition and dynamics of the native PAH-degrading microorganisms in…
The remediation of organic pollutant-heavy metal co-contaminated soil is a great challenge. Immobilized microorganism technology (IMT) is a potential approach to remediate co-contaminated soil. In this study, we evaluated the feasibility of IMT for…
Maintaining and supporting complete biodegradation during remediation of petroleum hydrocarbon contaminated groundwater in constructed wetlands is vital for the final destruction and removal of contaminants. We aimed to compare and gain insight into…
Exposure of marine fish to hydrocarbon compounds from crude oil can cause physiological and ecological alterations that can result in several cytotoxic, genotoxic, and teratogenic damages. One consequence of this exposure is the dysbiosis of the gut…
The purpose of this study was to investigate the potential of defined co-culture of indigenous bacterial consortium and exogenous fungus Scedosporium boydii for biodegradation of crude oil. After 7 days of incubation, residual oil, n-alkanes and…
Microbial community shifts of a freshwater wetland with crude oil pressure were investigated fully as a function of cultivation time, using the enrichment procedure and high-throughput sequencing. Bacterial structures and biodegradation capabilities…
Microbes can enhance oil recovery through the degradation of some heavy fractions of crude oil. Two Pseudomonas aeruginosa strains (Gx and Fx) using crude oil as the carbon source were isolated from oil-contaminated soils. The potential of Gx and Fx…
The present study demonstrates a promising approach for production of bio-crude oil via hydrothermal liquefaction of microbial biomass grown in large-scale open raceway pond. Three key attributes to achieve process feasibility are co-cultivation of…
W12# strain, which could produce biosurfactants with liquid wax as sole carbon source, was screened from oil-contaminated soil in Liaohe oilfield. Its effect on crude oil fluidity improvement was studied. Experimental results showed that W12# strain…
To investigate the influence of microbial wax removal and viscosity reduction technologies on the fluidity of waxy crude oil, this study took the waxy crude oil from China's Daqing Oilfield as the experimental object for microbial wax removal and…
Crude oil-degrading microbial consortia were enriched from three oil-contaminated sites to achieve the efficient biodegradation of crude oil, especially its refractory residues. The gravimetric method was used to analyze the degradation efficiency of…
Abstract: Relationships of the distribution of petroleum biomarker hydrocarbons (biomarker HCs), namely, n-alkanes, isoprenanes, n-alkylcyclohexanes, steranes, terpanes, and n-alkylbenzenes, in the soluble fraction and in thermolysis products of the…
BACKGROUND One of the major parts of global environmental pollution is petroleum-derived products. The purpose of this study was the biodegradation of total petroleum hydrocarbons (TPH) in oily sludge using biostimulation and bioaugmentation methods.…
This paper focuses on the features and genesis of Orinoco heavy oil in the East Venezuela Basin based on geochemical data and geologic evolution of this heavy oil belt. In accordance with crude oil composition and properties, heavy oil in the north…
The current problem of the last decade in the world is the increase of oil production volume due to the extraction of its hard-to-recover reserves. The difficulty of its extraction is determined not only by the petro-physical characteristics of the…
Oil spills in the subarctic marine environment off the coast of Labrador, Canada, are increasingly likely due to potential oil production and increases in ship traffic in the region. To understand the microbiome response and how nutrient…
Crude oil contamination greatly influence soil bacterial community. Proliferative microbes in the crude oil-contaminated soil are closely related to the living conditions. Oil wells in the Yellow River Delta Natural Reserve (YRDNR) region is an ideal…
In the present study, the biosurfactant production dynamics of Pseudomonas sp. IITISM 19, an indigenous bacterium was investigated and, the strain was evaluated for its crude oil biodegradation potential. The biosurfactant produced during…
In subsurface anoxic environments, microbial communities generally produce methane as an end-product to consume organic compounds. This metabolic function is a source of biogenic methane in coastal natural gas aquifers, submarine mud volcanoes, and…
This study examined the effect of voltage variation, the distance between electrodes and the application of a biosurfactant on the bio-electrokinetic remediation of soil contaminated with petrochemicals. The study was meant to correlate the…
Anaerobic degradation of petroleum hydrocarbons (PH)is an important process in contaminated environment. The application of rhamnolipids in anaerobic degradation of PH was not extensively studied and inconclusive. This study explored the combined…
Wax can increase the viscosity of waxy crude oil, also precipitates and accumulates on the pipe wall, reducing the efficiency of pipe transportation. A strain of surfactant producing hydrocarbon degrading bacteria F-1 was isolated from crude oil…
Soil bioelectrochemical systems (BESs) utilize indigenous microorganisms to generate biocurrent/electric fields that stimulate the degradation of organic pollutants, exhibiting great potential in the removal of petroleum hydrocarbons from soils. In…
This study investigated changes in soil ion content and soil water-holding capacity during electro-bioremediation (EK-Bio) of petroleum contaminated saline soil (ion content of 3.92 g/kg). The results indicated that the soil ions surrounded the…
Bioremediation is among the most basic and reliable way to eliminate pollutants by transforming the toxic petroleum components into less toxic metabolites. In order to compare the change of bacterial community during oil-biodegradation process, two…
Increasing soil petroleum hydrocarbons (PHs) pollution have caused world-wide concerns. The removal of PHs from soils mainly involves physical, chemical, biological processes and their combinations. To date, most reviews in this field based on…
Primary oil recovery is the first stage of hydrocarbon production in which a reservoir uses its natural energy to force hydrocarbon to its wellbore. Secondary oil recovery comes to play when hydrocarbons can no longer be further produced by natural…
Biochar has been widely applied for the remediation of petroleum-contaminated soil. However, the effect of biochar on the transport of petroleum degradation bacteria has not been studied. A typical Gram-positive petroleum degradation…
Petroleum degrading enzymes can be used as an alternative way to improve petroleum bioremediation approaches. Alcanivorax borkumensis is an alkane-degrading bacteria that can produce petroleum degrading enzymes such as alkane hydroxylase and lipase.…
The US Environmental Protection Agency (EPA) categorizes "oil sludge" as a hazardous waste that is subject to hazardous waste handling rules. The oil sludge may contain many different compositions. The challenge is that these sludges cannot be…
This study focuses on the post-recovery effect of Nigerian heavy crude viscosity in microbial enhanced oil recovery process. The technique involves the injection of exogenous hydrocarbon-degrading microbes with the required nutrients to guarantee the…
Rhizoremediation is increasingly becoming a green and sustainable alternative to physico-chemical methods for remediation of contaminated environments through the utilization of symbiotic relationship between plants and their associated soil…
This paper demonstrated the biological mechanism of paleokarst developed within the Ordovician formation in the Ordos Basin. An experiment in laboratory was designed for understanding the water-rock interaction with sulfate-reducing bacteria. The…
Increasing soil petroleum hydrocarbons (PHs) pollution have caused world-wide concerns. The removal of PHs from soils mainly involves physical, chemical, biological processes and their combinations. To date, most reviews in this field based on…
Petroleum is one of the largest energy sources in the world. However, contaminants from petroleum derivatives pose a serious threat to several ecosystems and are major contributors to environmental pollution in the current industrialized era. These…
Primary oil recovery is the first stage of hydrocarbon production in which a reservoir uses its natural energy to force hydrocarbon to its wellbore. Secondary oil recovery comes to play when hydrocarbons can no longer be further produced by natural…
The main components of petroleum oil are petroleum hydrocarbons, increasing population and modernization, which cause increasing environmental pollution by petroleum hydrocarbon. This chapter is intended to demonstrate the bioremediation using live…