bioremediation of strontium sr contaminated aquifer

  • 6. Case Studies – Remediation Management of Complex Sites

    6. Case Studies – Remediation Management of Complex Sites

    6. Case Studies. The case studies presented in this guidance represent regional differences in geology, climate, and regulatory programs. Many case studies include sites that were overseen by the USEPA through CERCLA regulations rather than state regulations.

  • Quantifying technetium and strontium bioremediation ...

    Quantifying technetium and strontium bioremediation ...

    title = "Quantifying technetium and strontium bioremediation potential in flowing sediment columns.", abstract = "The highyield fission products 99Tc and 90Sr are found as problematic radioactive contaminants in groundwater at nuclear sites.

  • Strontium | Wisconsin Department of Health Services

    Strontium | Wisconsin Department of Health Services

    Strontium. Strontium occurs nearly everywhere in small amounts. Air, dust, soil, foods and drinking water all contain traces of strontium. Ingestion of small amounts of strontium is not harmful. However, high levels of strontium can occur in water drawn from bedrock aquifers that are rich in strontium minerals.

  • The interactions of strontium and technetium with Fe(II ...

    The interactions of strontium and technetium with Fe(II ...

    the behaviour of Sr during bioreduction will inform the potential for bioremediation deployment on 90Sr2+ and 99Tc contaminated nuclear sites. In a recent sediment microcosm bioreduction study, extensive denitrification led to a raised pH (>9) and Fe(III) reduction developed under alkaline conditions (Thorpe et al., 2012a).

  • Bioremediation: a genuine technology to remediate ...

    Bioremediation: a genuine technology to remediate ...

    Apr 26, 2013· Radionuclides in the environment are a major human and environmental health concern. Like the Chernobyl disaster of 1986, the Fukushima Daiichi nuclear disaster in 2011 is once again causing damage to the environment: a large quantity of radioactive waste is being generated and dumped into the environment, and if the general population is exposed to it, may cause serious life .

  • USB1 Fe(o)based bioremediation of aquifers ...

    USB1 Fe(o)based bioremediation of aquifers ...

    Disclosed are methods, devices and apparatus for bioremediation of mixed waste aquifers, based on a synergistic combination of reductive treatment using zerovalent iron and anaerobic biotransformations. Also disclosed are methods for in situ and ex situ remediation of groundwater and wastewater via these ironbacterial compositions in a variety of devices including batch reactors, permeable ...

  • InSitu Bioremediation of Ground Water and Geological ...

    InSitu Bioremediation of Ground Water and Geological ...

    One of the major factors controlling the use of natural bioremediation is the ac ceptance of this approach by regulators, environmental groups, and the public. The implementation of these systems differs from conventional techniques in that a portion of the aquifer is allowed to remain contaminated.

  • BIOREMEDIATION by Elbertt Ferris

    BIOREMEDIATION by Elbertt Ferris

    We can remove waste with the technique of Bioremediation that involves the use of organisms to remove or abate pollutants from a contaminated site. Bioremediation is generally classified as in ...

  • Modeling Reactive Transport of Strontium90 in ...

    Modeling Reactive Transport of Strontium90 in ...

    Threedimensional, coupled variablysaturated flow and biogeochemical reactive transport modeling of a 2008 in situ uranium bioremediation field experiment is used to better understand the interplay of transport rates and biogeochemical reaction rates that determine the location and magnitude of key reaction products.

  • Evaluating the Potential of Native Ureolytic Microbes To ...

    Evaluating the Potential of Native Ureolytic Microbes To ...

    Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp.

  • Bioremediation: Techniques for Cleaning up a mess

    Bioremediation: Techniques for Cleaning up a mess

    Bioremediation 20. Exposure to this radiation can cause radiation burns and cancer. In addition, strontium (Sr) can replace calcium in bones and become concentrated enough to cause radiation injury from within the body. The problem with containment sites of .

  • Final Report | Assessment of Surfactant Enhanced ...

    Final Report | Assessment of Surfactant Enhanced ...

    Final Report: Assessment of Surfactant Enhanced Bioremediation for Soils/Aquifers Containing Polycyclic Aromatic Hydrocarbons (PAHs) EPA Grant Number: R825511C033 Subproject: this is subproject number 033, established and managed by the Center Director under grant R825511 (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).

  • Bioremediation of Strontium (Sr) Contaminated Aquifer ...

    Bioremediation of Strontium (Sr) Contaminated Aquifer ...

    Strontium (Sr) is a naturally occurring alkaline earth metal that is common in marine systems and crustal materials. As its radioactive form (90 Sr) is highly toxic, there is an urgent need for remediation of Sr contamination in order to prevent its possible longterm effects on the population in the contaminated regions. Therefore, it is necessary to find a cost effective ecofriendly technique to remove Sr .

  • Nuclear Waste Bioremediation Robert B. Laughlin

    Nuclear Waste Bioremediation Robert B. Laughlin

    Mar 11, 2016· The abovementioned studies of bioremediation research are just representative examples of the wide range of ongoing research in the field of bacterial assisted nuclear waste bioremediation. Through studies of bacterial species that thrive in radioactivelycontaminated sites, scientists are discovering even more resistant organisms capable of ...

  • Effect of groundwater pH and ionic strength on strontium ...

    Effect of groundwater pH and ionic strength on strontium ...

    Strontium90 is a beta emitting radionuclide produced during nuclear fission, and is a problem contaminant at many nuclear facilities. Transport of {90Sr} in groundwaters is primarily controlled by sorption reactions with aquifer sediments. The extent of sorption is controlled by the geochemistry of the groundwater and sediment mineralogy. Here, batch sorption experiments were used to examine ...

  • Calcite Precipitation and Trace Metal Partitioning in ...

    Calcite Precipitation and Trace Metal Partitioning in ...

    Apr 12, 2003· article{osti_809819, title = {Calcite Precipitation and Trace Metal Partitioning in Groundwater and the Vadose Zone: Remediation of Strontium90 and Other Divalent Metals and Radionuclides in Arid Western Environments}, author = {F. Grant Ferris}, abstractNote = {In situ remediation is an emerging technology that will play an important role in DOE's environmental .