lead decontamination Articles

  • Portable lead analyzer to locate source of lead

    OBJECTIVE: To investigate the sources of lead in the environment in children with elevated blood, with the help of a Field Portable X-Ray ...

  • Saraca indica leaf powder for decontamination of Pb: removal, recovery, adsorbent characterization and equilibrium modeling

    The present study explores the effectiveness of Saraca indica leaf powder, a surplus low value agricultural waste, in removing Pb ions from aqueous solution. The influence of pH, biomass dosage, contact time, particle size and metal concentration on the removal process were investigated. Batch studies indicated that maximum biosorption capacity for Pb was 95.37% at the pH 6.5. The sorption ...

  • Demonstration of DeconGel at Oak Ridge National Laboratory building 2026

    Challenge In 2003 an area behind the hot cells in Building 2026 at the Oak Ridge National Laboratory (ORNL) was flooded with highly contaminated liquids when a liquid low level waste pipe became clogged. The main contaminants of concern are uranium and plutonium. Transferrable contamination levels are in the 1,000,000 disintegrations per minute range. The area is posted as an airborne ...


    By METIS Scientific

  • Characterization Of A Deep Radiological Contamination: Integration Of Geostatistical Processing And Historical Data

    Summary Emerging in the early 80’s, decommissioning is more than ever a major issue since hundreds of sites and facilities worldwide will end their operations over the next decades. Decontamination and remediation projects are all the more sensitive since they could last several years and turn out to be highly costly if not well-prepared. The key lies in an adequate contamination ...


    By Geovariances

  • Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)

    The uptake and release of Pb(II) by Fontinalis antipyretica was studied in laboratory, by exposing the plants to different lead concentrations for 144 h and 335 h contamination and decontamination periods, respectively. A first order kinetic model was fitted to the experimental data to determine the uptake and release constants, k1 and k ...


    By Inderscience Publishers

  • Pollution retention capabilities of roadside soils

    ABSTRACTRunoff from highways contains significant loads of heavy metals and hydrocarbons. According to German regulations, it should be infiltrated over embankments to support groundwater-recharge. To investigate the decontaminating effect of greened embankments, soil-monoliths from highways with high traffic densities were taken. Soils were analyzed to characterize the contamination in relation ...


    By IWA Publishing

  • Ex Situ Thermal Treatment for Soil, Sediment, and Sludge

    The main advantage of ex situ treatments is that they generally require shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to screen, homogenize, and continuously mix the soils. Ex situ processes, however, require excavation of soils leading to increased costs and engineering for equipment, possible permitting, and materials handling worker ...

  • Child care center hazards result in New Jersey emergency legislation

    Exposure of children and staff in a Child Care/Day Care Center in New Jersey prompted Governor Corzine to introduce emergency legislation for Environmental Hazards. These environmental hazards include air emissions from nearby businesses as nail salons, dry cleaners, industrial facilities, chemical plants, and even trucking facilities. Further, contaminated drinking water and contaminated soil in ...

  • Firm pioneers PCB clean-up solution

    Untitled Document A Vancouver firm's bid to test a revolutionary technology that could provide a solution to the world's PCB problems was given initial support from Richmond's community ...


  • Geostatistics for radio-contaminated site characterization - Methods and case studies

    Radiological characterization for decommissioning of nuclear sites and facilities is a key issue for the global success of such industrial projects, which imposes an efficient control of radiological hazards, cost estimation, planning and waste management. A large range of evaluation objectives co-exist during a decommissioning and dismantling (D&D) project: doubt removal, identification of ...


    By GEOVARIANCES

  • Thermal Treatment Technologies

    Hot gas decontamination: Hot gas decontamination is a technology still in the pilot-scale of development that can be used for decontamination of explosives-contaminated masonry or metallic structures. The method involves sealing and insulating the structures, heating with hot gas stream to 260 °C (500 °F) for a prescribed period of time, volatilizing the explosive contaminants, and destroying ...

  • Isatis and Kartotrak, an efficient combination for the characterization of radiological contaminations

    Kartotrak is a GIS platform developed by the CEA (the French Atomic Energy Authority) and Geovariances for real-time characterization of radiological contaminations. Dismantling former nuclear sites requires a preliminary characterization of radiological contamination, for both external areas and nuclear facilities. Such characterization usually relies on several steps: ...


    By Geovariances

  • Clemen-soap: a shipbreaking saga

    After an illustrious history, the final days of the ‘Clemenceau’ aircraft carrier have become mired in controversy. The French navy wanted the vessel to go for breaking in India, but environmentalists had other ideas … When the French navy replaced its fifty-year-old aircraft carrier ‘Clemenceau’ with its nuclear successor the ‘Charles de Gaulle’ in 1997, it looked for a place to scrap the old ...


    By Recycling International

  • TopAir`s PCR Station

    The PCR station is a cleanroom area with specialized equipment for the biomedical field. The PCR station handles Polymerase Chain Reaction (PCR), a molecular technique for producing large quantities DNA from using an enzymatic reaction without requiring a living organism. Because of the high sensitivity of the procedure, careful attention to the work process in the PCR station is required. The ...


    By TopAir Systems

  • The Growing Threat To Canada`s Oil Sands Boom

    The Alberta Oil Sands reserves are among the top three oil reserves in the world, and are being aggressively developed by the world's largest energy producers; The Oil Sands are being counted on to replace falling production elsewhere in the world, and are strategically important to the energy industry; Extracting oil from the sands is highly water-intensive and ...


    By Biolargo, Inc.

  • Sinking Costs

    Today there is more pressure than ever for businesses to minimize costs and increase productivity. Companies are always looking for ways to reduce overall costs. Unfortunately, these efforts are often hampered when a company is faced with an environmental investigation. Regulatory agency requirements, such as determining the full horizontal and vertical extent of contamination in soil and/or ...


  • This idea deserves to clean up

    Untitled Document Cape Breton may very well be one of the most scenic places in Canada, but in the middle of that East ...


  • Drought Forces Push to Recycle, Reuse and Potential in Brackish Water for Oil & Gas Industry: Interview with BioLargo CEO

    UPTICK Interview: BioLargo's AOS Filter Delivers Abundant Clean Water Even In Drought The headlines are full of discussion on water shortages and drought with few options consistently noted beyond the need to conserve and manage the precious resource. To gain perspective on the problem and explore viable solutions UPTICK Newswire interviewed ...


    By Biolargo, Inc.

  • MIOX bringing green tech to fracking

    Water purification firm MIOX Corp. is diving deep into the bowels of the oil and gas industry. The Albuquerque company, whose purification systems are used worldwide to clean water for municipalities and commercial businesses, will apply its technology for the first time to reduce toxicity and improve the efficiency of fluids that oil and gas companies use for hydraulic fracturing to crack open ...


    By MIOX Corporation

  • Superfund Remediation: The Key to Land Reuse Case Study

    The technology is ready and, with state and federal tax credits waiting, the economics look better than ever: New Jersey, one of the first states to be industrialized, finds itself plagued with the contaminated aftermath of pre-EPA industries: soil contamination. From superfund sites to the gas station whose underground storage tank has been oozing for the last 20 years, every ...


    By CR Clean Air Group, LLC

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