bioremediation treatment Articles

  • Coupling vermiremediation with phytoremediation technology to enhance the efficiency of reclamation of polluted marine sediments

    Contaminated (TPHs and heavy metals) dredged sediments from Livorno port (Italy) were biological treated using plants and earthworms. Sediments presented an asphyctic physical structure owing to the silt?clay granulometric composition, a high salty level and a low organic content. A meso-scale experiment was done utilising three different bioremediation treatments: a) plants (Paspalum vaginatum ...


    By Inderscience Publishers

  • SEB Surfactant Enhanced Bioremediation Process Improves F3 & F4 Bioremediation to CCME Guidelines - Case Study

    SEB Surfactant Enhanced Bioremediation process successfully cleans >4,000 Tons of F3 and F4 hydrocarbon contaminated soils at a remote site in Alberta. The SEB process was employed when the subject soils would not respond well to a conventional ex-situ bioremediation treatment. So after a 20 month period of unsuccessful bioremediation; the client and environmental contractor contacted Ivey ...


    By Ivey International Inc.

  • In Situ Bioremediation of Chlorinated Solvents: A Case Study

    In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon. Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride. In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source areas. Subsequent stimulation of in ...


    By EOS Remediation, LLC

  • In Situ Bioremediation of Chlorinated Solvents

    ABSTRACT: In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon.  Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride.  In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source ...


    By EOS Remediation, LLC

  • Accelerated Bioremediation as an Alternative to Conventional Remedial Technologies.

    ABSTRACT: Application of bioremediation as an alternative technology to expedite soil and ground-water remediation has been effective in reducing the concentration of hydrocarbons at an affordable cost. Bioremediation processes can be achieved by the addition of biological organisms into the soil and ground water which are contaminated and are microorganism deficient. The microorganism's ...


    By Regenesis

  • ARCADIS Technology Applications in the Mining Industry

    ARCADIS is a leading global, knowledge-driven service provider, active in the fields of infrastructure, buildings, environment and communications. Known for our innovative and full services capabilities, we develop and implement solutions based on personal service, open communication, and a commitment to quality. We are committed to developing and utilizing leading-edge technologies, continually ...


    By Arcadis

  • Inhibition of bacterial perchlorate reduction by zero-valent iron

    Perchlorate was reduced by a mixed bacterial culture over a pH range of 7.0–8.9. Similar rates of perchlorate reduction were observed between pH 7.0 and 8.5, whereas significantly slower reduction occurred at pH 8.9. Addition of iron metal, Fe(0), to the mixed bacterial culture resulted in slower rates of perchlorate reduction. Negligible perchlorate reduction was observed under abiotic ...


    By Springer-Verlag GmbH

  • Bioremedation and TPH analysis at Lumwana Copper Mine in Zambia

    MINING SITE: Equinox Minerals operates the biggest copper mine in Africa located at Lumwana in Northwest province Zambia.  Open pit mining methods are used to access the ore which is hauled to the process plant where it is crushed and processed into final concentrate. The mine operates a large fleet of equipment, including 27 EH4500 dump trucks, 5 shovels, 4 excavators ...


    By Sitelab Corporation

  • Ex Situ Soil Treatment of Waste Oils and Diesel Fuel

    Project: Treated 450 cubic yards of waste oils and diesel fuel in soil and rockClient: Southern Arizona Mining Site Location: Near Tucson, Arizona Scope of work: Ex-Situ BioremediationProject cost: $21,600 (Included earthmoving equipment, treatment, bioremediation supplies and all analytical sampling) ...


    By Catalina Biosolutions

  • Use of aquatic plants in removing heavy metals from wastewater

    Phytotechnologies involving use of plants for pollutant removal gained importance during the last two decades. Terrestrial and aquatic plants possess high metal sorption capacity, and hence find their use as inexpensive materials for removing metals from environment. Aquatic biomass irrespective living or dead, exhibits capacity to remove heavy metals from wastewater. The sequestration of heavy ...


    By Inderscience Publishers

  • Performance of DNAPL source depletion technologies 2 at 59 Chlorinated solvent-impacted sites

    Abstract Performance and rebound of intensive source depletion technologies were evaluated at 59 chlorinated solvent sites where remediation targeted dense non-aqueous phase liquid (DNAPL) source zones. The four technologies included in the study are chemical oxidation, enhanced bioremediation, thermal treatment, and surfactant/cosolvent flushing. Performance was evaluated by examining ...


    By TRS Group, Inc.

  • Keyhole source treatment to reduce pce ground water plume Case Study

    CL-Out bioremediation was used in a keyhole treatment to reduce the mass of contamination near the source and down gradient concentrations in the plume.  At a former manufacturing facility in Ohio the concentration of PCE near the source was over 100,000 ug/L.  Down gradient of the source the PCE concentrations were less than 10% of the source concentration.  Aggressive treatment ...


    By CL Solutions, LLC

  • Cost implications of hydrogen donor selection for in-situ bioremediation of chlorinated solvents

    The use of enhanced anaerobic bioremediation for treatment of chlorinated solvents in groundwater has increased at a rapid rate within the past three years. Since there are a number of different hydrogen donors that can potentially be used, it is important that practitioners understand the cost implications of the hydrogen donor(s) selected for the project. A comparative economic analysis is ...


    By Terra Systems, Inc. (TSI)

  • A chemo-biological treatment of scrubbing water from power plants with recovery of value-added products

    A chemo-biological approach for treating sulphate-rich effluent generated during wet scrubbing of flue gas emissions from fossil fuel fired power plants has been discussed. Microbial sulphate reduction was carried out in an anaerobic up-flow packed bed bioreactor (R1) using ethanol as carbon source. More than 90% of Total Equivalent Sulphate (TES) present in the effluent was reduced to sulphide ...


    By Inderscience Publishers

  • CETP Bangladesh Biological System Restoration with Microbe-Lift® Remediation - WASTEWATER TREATMENT

    The biological system managed to reduce COD from 1000 mg/L to about 300 mg/L from original value of 1000 mg/L to 700 mg/L within one month of MICROBE-LIFT® bioaugmentation. The reduced COD before ECR treatment reduced the ECR electricity and steel plate consumption by 60%. The post ECR sludge was also reduced by half, thereby PAC and sludge disposal cost. Sludge disposal cost is not high, but ...


    By Ecological Laboratories Inc

  • Bioremediation of Oily Bilge Using BilgeRemed on board M/V Swift Arrow

    Ship board studies on effect of BilgeRemed on oily bilge water in sea going ships was carried out on a ship operating from Port Kitimat, BC in Canada. 5 gallons of BilgeRemed was added on a weekly basis to the oily bilge water holding tank after collecting a airlifting sample of oily bilge water for analysis to SARVA. The results show that the Total Petroleum Hydrocarbons (TPH) of the water was ...


    By Sarva Bio Remed, LLC

  • Bioremediation Following Dual Phase Extraction Saves Hundreds of Thousands of Dollars

    CL-Out® bioremediation was implemented at a dry cleaners site in Houston, Texas to reduce concentrations of residual PCE and other chlorinated solvents in groundwater following dual phase vacuum extraction.  After application of CL-Out® bioremediation the chlorinated solvent concentrations were reduced by 98% to 99% in less than 90 days.  The switch saved their client ...


    By CL Solutions, LLC

  • Removal of pollutants from pulp and paper mill effluent by anaerobic and aerobic treatment in pilot-scale bioreactor

    Pilot-scale anaerobic and aerobic treatment in a two-step bioreactor was performed for the removal of pollutants from pulp and paper mill effluent. After seven days of anaerobic treatment, colour (45%), lignin (60%), COD (26%) and adsorbable organic halogen (AOX) (20%) were reduced. The anaerobically treated effluent was then treated in a bioreactor in the presence of a fungal strain (Aspergillus ...


    By Inderscience Publishers

  • Surfactant enhanced aquifer remediation (SEAR) using Ivey-sol surfactant technology

    This paper will focus on the application of Ivey-sol non-ionic surfactant technology to improve the in-situ remediation of petroleum hydrocarbon contamination is soil and bedrock aquifers. Normally hydrophobic organic chemicals (HOC) exhibit limited solubility in groundwater as the contaminants tend to partition onto the soil and bedrock matrix. This partitioning can account for as much as 90-95% ...


    By Ivey International Inc.

  • Common Treatment Train for Fuels

    A treatment train is the combination of different treatment technologies. A system diagram of a common treatment train for fuels is illustrated below. The fuel contaminated soil is first treated using a soil washing process. Water is injected at the up stream side of the contaminated site. Surfactant or other additives may be added to enhance the soil washing effect. Contaminated water is ...

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