bioremediation microbial solution Articles

  • Aerobic Cometabolism of Halogenated Aliphatic Hydrocarbons: A Technology Overview

    Untitled Document Abstract Bioremediation of chlorinated solvents has been moving from an innovative to ...


    By CL Solutions, LLC

  • Comparison of Reducing Agents for Dechlorination in a Simulated Aquifer (PDF)

    A simulated aquifer system (Aquifer Simulation Vessel – ASV) was used to study the efficacy of various reducing agents to assist microbial dechlorination. The soil samples are homogenized and the soil is packed into 6.0-foot long tubes with an internal diameter of 5.75 inches. Flow rates can be calibrated for flow at 0.1 to 2.0 feet/day. The system has a volume of 2025.44 in3.  A solution of ...


    By Regenesis

  • PCP Confidential Client, Northwest USA

    Northwest, USA Summary Adventus’ DARAMEND® technology was selected to remediate approximately 6,000 tons of soil impacted with pentachlorophenol (PCP) at a former chemical manufacturing facility located in the Northwest. Excavated soil was placed in a lined bioremediation cell in a 2 ft layer for treatment. The Challenge To reach a remedial goal of less ...


  • PaHs:Hamilton Harbour, Ontario, Canada

    Project Bioremediation of sediment impacted with PAHs Summary The effectiveness of DARAMEND® bioremediation was demonstrated on 150 tons of sediment dredged from PAH impacted regions of Hamilton Harbour. The harbour is adjacent to a heavily industrialized area and the sediments have been impacted with a variety of contaminants including residue from coal coking ...


  • Oxygen and temperature kinetics of aerobic solid-state Biodegradation

    Rates of decomposition are of critical interest to operators of most biodegradation processes, since they determine the length of time the process must continue to achieve a particular extent of decomposition. While the goals of the decomposition process vary widely, ranging from reduction of odors or contaminants to production of high valueadded products, most of these goals are impacted by the ...


    By ORBIT e.V.

  • Bioaugmentation is a cost-effective and sustainable remediation alternative

    Selecting a remediation alternative that is compatible with the natural soil and ground water conditions is not only a more sustainable approach, but leads to significant savings. Comparison between bioaugmentation and other remediation methods in the five recognized sustainability criteria demonstrates the advantages of bioaugmentation. While this paper is nota complete quantitative analysis, it ...


    By CL Solutions, LLC

  • Case Study: Aerobic Cometabolism of Vinyl Chloride in Central Ohio

    Site Summary: Chlorinated solvents were found in ground water at a former automobile repair shop. The solvents were thought to have been released from an underground storage tank (UST). After the UST and associated contaminated soil were removed, CL-Out® bioremediation was implemented to reduce the levels of contamination to site-specific cleanup goals. Geology and Hydrogeology The site is set in ...


    By CL Solutions, LLC

  • Aerobics to the Rescue - Using Compatible Technologies to Improve Groundwater Remediation

    Background Increased opportunities for contaminated property redevelopment have propelled property owners to evaluate options for accelerating site remediation. In some cases a containment technology may have been implemented to mitigate the off-property migration of contamination as the most ...


    By CL Solutions, LLC

  • Mercury Removal

    The Adventus Mercury Removal AdvantageResponsible environmental experts in the academic, business and regulatory communities are increasingly more worried about the high levels of mercury contamination affecting many parts of the world. The international community is focusing their attention on this growing problem and EHC-M will clearly help, as it is perfectly suited for treating environments ...


  • 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

  • The advantages and benefits of aerobic cometabolism

    Aerobic metabolism yields the energy-transferring molecule TPA at a much higher rate than anaerobic metabolism. The higher energy yield produces a greater viable population. The oxygenase enzymes involved in the cometabolism of chlorinated solvents are not induced by the presence of contaminants, so a high microbial population has a proportionately high yield of oxygenase enzymes. Aerobic ...


    By CL Solutions, LLC

  • Arsenic Removal

    The Arsenic Removal ProcessArsenic, a naturally occurring element, is found throughout the environment; for most people, food is the major source of exposure. Acute (short-term) high-level inhalation exposure to arsenic dust or fumes has resulted in gastrointestinal effects (nausea, diarrhea, abdominal pain); central and peripheral nervous system disorders have occurred in workers acutely ...


  • Using AquaBupH to adjust aquifer PH: ESTCP-funded project at Charleston Naval weapons station - Case Study

    Elevated levels of trichloroethene (TCE) were found in groundwater at a Department of De-fense (DoD) facility in Charleston, SC. Under an ESTCP-funded in situ technology demonstra-tion project , the Navy had been effectively remediating contamination until a drop in aquifer pH caused dechlorination rates to decline. Solutions-IES responded with a study and applica-tion of buffered substrate to ...


    By EOS Remediation, LLC

  • In-Situ Anaerobic Remediation of Perchlorate-Impacted Soils

    AbstractARCADIS is currently leading the development, evaluation, and selection of a final groundwater remedy for a 94-acre manufacturing facility in the western U.S. This facility has produced small explosives and vehicular safety products since 1957. As a result of historic operations, soil and groundwater at the site have been impacted by perchlorate. To date, remediation efforts have been ...


    By Arcadis

  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • Success in the Lab Leads to Success in the Field

    Success in the Lab Leads to Success in the Field Superfund Site in Pennsylvania  Problem:  Degrade TCE in the presence of 1,1,1-TCA   They said it couldn't be done. Most strains of Dehaloccoides (Dhc) would not dechlorinate TCE in the presence ...

  • Environmental Sensors in Waste Management

    Issue: As part of an increasing sentiment among European consumers that environmental protection is important, concern about the impact of landfill is growing. Sensor technology makes it possible to measure and control inputs to landfill sites and pollutants arising from them. However, the exploitation - or uptake - of such technology has been lower than expected in the waste management sector. ...


  • Nanobite Cleans up Coastal Oil Disaster in Spain - Case Study

    On November 13, 2002, the Greek tanker The Prestige began losing its cargo of #6 bunker crude oil after one of its tanks burst off the northwest coast of Spain. The Spanish government decided to allow the tanker to sink, despite concerns of widespread contamination. By December’s end, the tanker had lost 80% of ...


    By Slick Solutions

  • Operator Strategies : Sorting Out the Plastic

    BETTER BUGS Ideas and products in the Better Bugs category attempt to affect the biological components and biochemistry of processes by altering the mix of microorganisms or enzymes present. After all, biology is the foundation of many, if not most, organics recycling systems. Pyrophiles: The first example of Better Bugs involves pyrophilic organisms, bugs that can take the heat. This example is ...


    By BioCycle Magazine

  • 99% of Interceptor contamination remediated - Case study

    What is an Interceptor Tank? An interceptor tank is a trap used to filter out hydrocarbon pollutants from rainwater runoff. It is typically used in road construction and on petrol station forecourts to prevent fuel contamination of the water table via runoff. Petrol interceptors work on the premise that some hydrocarbons such as petrol and diesel float on the ...


    By Slick Solutions

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