hydrocarbon degrader Articles

  • Evaluation of Microbial Communities Colonizing Stone Ballasts at Diesel Depots

    In this study, we evaluated the heterotrophic microbial communities colonising stone ballasts at diesel depots. The number of bacteria (both total culturable heterotrophic bacteria and hydrocarbon-degrading bacteria) was proportional to the level of hydrocarbon contamination. However, there was no significant difference in the level of total culturable heterotrophs (TCHs) and the hydrocarbon ...


    By Springer

  • Enhanced Bio-Remediation of Wastewater

    Bioremediation has been used to treat hydrocarbon contamination in municipal wastewater for centuries. Most microbes used in bioremediation today are naturally occurringyetspecifically chosen and cultured versus being genetically modified. Bioremediation rivals techniques such as pump and treat extraction systems, as it provide cost savings for municipalities, as well as environmental savings by ...


    By DELTA REMEDIATION INC

  • Remediation technology of groundwater contaminated by perchloroethylene

    To dechlorinate perchloroethylene (PCE), batch experiments were conducted for five groups of reactors: zero-valent iron (Fe0), zero-valent zinc (Zn0), an anaerobic microbial community (MB), a combination of iron powder and an anaerobic microbial community (FeMB), and combination of zinc powder and an ...


    By Inderscience Publishers

  • Ozone treatment of organic micro-pollutants in sewage sludge

    Organic micro-pollutants accumulate to a certain extent in sewage sludge and are therefore ecologically relevant if the sludge is to be reused in both agriculture and landscaping applications. This paper describes the degradation of endocrine-disrupting compounds and other micro-contaminants by means of ozone and ultrasonic treatment. One of the findings is that, as expected, aromatic compounds ...


    By IWA Publishing

  • Determination of Wear Metals and Additives (Soaps) in Lubricating Oils by Atomic Absorption

    Lubricating & hydraulic fluids are crucial to the proper functioning of many types of machines: automobiles, farm equipment, heavy-duty motors, airplanes, and military hardware. Most “lubes” are simple hydro-carbon based oils or greases that have certain additives in them to prevent wear and abrasion of components (piston rings, bearings, etc.) or oxidation degradation of the oil. These additives ...


    By Buck Scientific Inc

  • Direct soil contact values for ecological receptors exposed to weathered petroleum hydrocarbon (PHC) fraction 2

    Ecological tier 1 Canada‐wide standards (CWS) for petroleum hydrocarbon (PHC) fraction 2 (F2; >nC10–C16) in soil were derived using ecotoxicological assessment endpoints (effective concentrations [ECs]/lethal concentrations [LCs]/inhibitory contrations, 25% [IC25s]) with freshly spiked (“fresh”) fine‐ and coarse‐grained soils. These soil standards might be needlessly conservative when applied to ...


    By John Wiley & Sons, Ltd.

  • Proof That Bacteria Degrade Oil

    There has been a lot of publicity and ‘noise’ around the ability of bacteria to degrade oil, especially following BP’s Gulf of Mexico incident.  However little has been shown to prove that biological remediation is an effective means of treating oil contamination. Over many years CBIO have worked to develop a range of a microbial products that have proven to be able to ...


    By Cleveland Biotech Ltd.

  • Volatile organic compounds emitted from hardwood drying as a function of processing parameters

    During the drying of wood, volatile organic compounds are emitted. These emissions contribute, in the presence of nitrogen oxides and sunlight, to the formation of ground level ozone and other harmful photo-oxidants. Emissions of volatile organic compounds from the drying of birch sawdust in a spouted bed were analyzed with a flame ionization detector and with a gas chromatograph-mass ...

  • Isolation and characterization of some polycyclic aromatic hydrocarbon degrading bacteria from Nsukka soils in Nigeria

    Abstract: Twenty-four bacteria capable of utilizing naphthalene, as their sole source of carbon and energy for growth were isolated from three different sites in Nsukka, Nigeria. By standard bacteriological methods, these bacteria were characterized taxonomically as belonging to the genus Pseudomonas, Burkholderia or Actinomycetes. Two of the isolates, which showed the highest growth during ...

  • Treatment of laundry wastewater by biological and electrocoagulation methods

    The present study describes an improvement in the current electrocoagulation treatment process and focuses on a comparative study for the clean-up of laundry wastewater (LWW) after each wash and rinse cycle by biological and electrocoagulation treatment methods. For biological treatment, the wastewater was treated with a Bacillus strain of aerobic bacteria especially suited for the ...


    By IWA Publishing

  • Transboundary Pollution

    All pollutants can be transported through the aquatic environment and atmosphere, and many accumulate in downstream water bodies and their biota. The probability that pollution will cause transboundary impacts depends on the location of its source in relation to national boundaries, as well as the time it takes for a given pollutant to degrade. In general, microbial pollution is primarily a local ...


    By IWA Publishing

  • Biodegradation of polyaromatic hydrocarbons by recombinant bacteria containing Alasan gene

    Alasan, the bioemulsifier of Acinetobacter radioresistens KA53, is a high molecular-mass complex of an alanine-containing polysaccharide and three proteins. This gene was isolated from the A. radioresistens using PCR and the amplified product (850 bp) was cloned using PGEMT cloning kit. DNA sequence was carried out for the amplification and sequence analysis showed that the PCR product was highly ...


    By Inderscience Publishers

  • Novel diesel-oil-degrading bacteria and fungi from the Ecuadorian Amazon rainforest

    Isolating new diesel-oil-degrading microorganisms from crude-oil contaminated sites and evaluating their degradation capacities are vitally important in the remediation of oil-polluted environments and crude-oil exploitation. In this research, new hydrocarbon-degrading bacteria and fungi were isolated from the crude-oil contaminated soil of the oil-fields in the Amazon rainforest of north-east ...


    By IWA Publishing

  • Quantitative simulation and analysis of hydrocarbon pool–forming processes in Tahe oilfield, Tarim basin

    The research on hydrocarbon accumulation rules for Tahe oilfield of Tarim basin is slightly stagnant, and even there is no unified and rational explanation about the oil generation and accumulation in such a basin with a high degree of evolution. This paper concludes that the accumulation of Tahe oilfield has experienced four stages, through cautious analysis of the tectonic evolution and ...


    By Inderscience Publishers

  • Removal of naphthalene from offshore produced water through immobilized nano-TiO2 aided photo-oxidation

    In order to increase the applicability of photocatalysis in treating offshore produced water (OPW), an immobilized catalyst was introduced into the UV irradiation system and its performance on the degradation of organic compounds in OPW was evaluated. Naphthalene was selected as the target pollutant owing to its abundance in produced water and its chemical property as a typical polycyclic ...


    By IWA Publishing

  • Surfactant enhanced bioremediation (SEB) of F2, F3 and F4 contaminated soils in Northern Alberta - Case Study

    Ivey International Inc. (Ivey) was retained to apply the SEB (Surfactant just prior to the on-set of colder northern weather in an area know for -20oC to Enhanced Bioremediation) technology to remediate 2000 tons of F2, F3, and -40oC winter temperatures. The actual period for effective bioremediation in F4 fine grained contaminated soil at a remote site in northern Alberta. The this climate is ...


    By Ivey International Inc.

  • TCE at Department of Defense Landfill Site

    PROJECT BACKGROUND Subsurface investigations at this 40-acre Northern California Department of Defense (DOD) landfill site revealed elevated levels of TCE in site soils and groundwater. This discovery was made through routine site monitoring, as regulated by the state of California solid waste landfill regulations. Regulators required site cleanup to reduce chlorinated hydrocarbon concentrations ...


    By Regenesis

  • In situ remediation of BTEX, MTBE and TPH using EAS as a terminal electron acceptor

    EAS, A Paradigm Shift in the Remediation of Petroleum Hydrocarbons The conventional wisdom for remediation of aquifers contaminated with petroleum hydrocarbons (PHCs) is to add oxygen. A recent EPA / British Petroleum study, however, concluded that most hydrocarbon plumes are anaerobic and depleted of sulfate and, therefore, adding oxygen is disadvantageous. Other studies have drawn ...


    By True Blue Technologies, Inc.

  • Biotechnology of hydrocarbon bioremediation in soil washing slurry

    Application of Bioremediation for low cost contaminated soil washing slurry treatment with quick hydrocarbon reduction and improved sustainability. The application uses proprietary microbial formulation with a slurry bioreactor in order to accelerate the degradation process and to make it compatible with soil washing technology. The end result is a treated soil which meets the requirements for ...


    By Biofuture Ltd

  • Monitoring of petroleum hydrocarbon degradative potential of indigenous microorganisms in ozonated soil

    This study was performed to investigate the petroleum hydrocarbon (PH) degradative potential of indigenous microorganisms in ozonated soil to better develop combined pre-ozonation/bioremediation technology. Diesel-contaminated soils were ozonated for 0–900min. PH and microbial concentrations in the soils decreased with increased ozonation time. The greatest reduction of total PH (TPH, 47.6%) and ...


    By Springer

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