bioremediation of strontium sr contaminated aquifer

Bioremediation of strontium (Sr) contaminated aquifer

Oct 01, 2012· Keeping the point, many nuclear reactors worldwide are near sea, the present study focuses on Sr bioremediation from aquifer sediments/quartz sand using Sr resistant Halomonas sp Strontium was analyzed from soluble–exchangeable and carbonate bound fractions of quartz sand Chemical characterization of biomineralization products was done by X

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Bioremediation of strontium (Sr) contaminated aquifer

Contamination of aquifers or sediments by radioactive strontium (90 Sr) is a significant environmental problemIn the present study, microbially induced calcite precipitation (MICP) was evaluated for its potential to remediate strontium from aquifer quartz sand

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Bioremdiation of strontium (Sr) contaminated aquifer

Calcite precipitation has been utilized in strontium (Sr 2+ )contaminated regions for bioremediation purposes (Anderson and Appanna, 1994; Achal et al, 2012) During bioremediation, there was an

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 regionsTherefore, it is necessary to find a cost effective ecofriendly

Bioremediation of strontium (Sr) contaminated aquifer

Oct 01, 2012· Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp

Cited by: 112

Bioremediation of strontium and technetium contaminated

Mar 30, 2019· 22 Sr bioremediation with glycerol phosphate Sediment microcosms containing 10 ± 01 g of sediment and 100 ± 1 ml of artificial regional groundwater were set up to investigate the impact of glycerol phosphate on Sr contaminated groundwater

Bioremediation of strontium (Sr) contaminated aquifer

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

Bioremediation of strontium and technetium contaminated

Bioremediation of strontium and technetium contaminated groundwater using glycerol phosphate bioremediation strategy to cotreat both ⁹⁰ Sr and ⁹⁹ Tc contaminated groundwaters, and

Bioremediation of strontium and technetium contaminated

Bioremediation of strontium and technetium contaminated groundwater using glycerol phosphate Geobacter and Desulfobulbus spp Overall these results suggest application of glycerol phosphate offers a promising bioremediation strategy to cotreat both 90 Sr and 99 Tc contaminated groundwaters, and promotes the formation of Srphosphate and

Bioremediation of strontium (Sr) contaminated aquifer

Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp By V Achal, X L Pan and D Y Zhang Year: 2012

Bioremediation of Strontium and Technetium Contaminated

Social responsibility People Conference venues Facilities Facts and figures Bioremediation of Strontium and Technetium Contaminated Groundwater using Glycerol Phosphate Groundwater at legacy nuclear facilities around the world is contaminated with radionuclides including strontium90 and technetium99, which are often present as

Quantifying Technetium and Strontium Bioremediation

The highyield fission products 99 Tc and 90 Sr are found as problematic radioactive contaminants in groundwater at nuclear sites Treatment options for radioactively contaminated land include bioreduction approaches, and this paper explores 99m Tc and 90 Sr behavior and stability under a range of biogeochemical conditions stimulated by electron donor addition methods

[PDF] Insitu bioremediation for treatment of sewage

Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp V Achal , X Pan , D Zhang Chemistry, Medicine

Laboratory measurements of the strontium distribution

A batch method has been modified and improved for measuring strontium distribution coefficients K d Sr for sediments from the shallow aquifer at Chalk River An average measured K d Sr value of 10 ml/g for whole aquifer sediments compares favorably both with a field value of 7 ml/g determined using the retardation equation and with an average K d Sr of 10 ml/g based on analytical results for

Biominerlisation as a Remediation Technique: A Critical

Achal, V, Pan, X, & Zhang, D (2012a) Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp Chemosphere, 89(6), 764–768 CrossRef Google Scholar

Applications of biofilms in bioremediation and

Oct 23, 2013· Achal V, Pan X, Zhang D (2012) Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp Chemosphere 89:764–768 Google Scholar

Bioremediation of Sr2+ ion radionuclide by using marine

BACKGROUND Microbial biosorption is recognized as a resourceful process for the remediation of pollution from contaminated environs To investigate radionuclide bioremediation, carbohydrate contained extracellular polymeric substance (EPS) and strontium ion (Sr +) tolerant marine actinobacterium has been isolated and identified as Streptomyces sp CuOff24 through 16S rDNA

Microbiallyinduced Carbonate Precipitation for

Jan 01, 2016· In another study, a possible role of ureolytic Halomonas sp was reported for the remediation of strontium (Sr) in aquifer sand (Achal, Pan, & Zhang, 2012) The overall reactions involved in the bioremediation process included urease producing NH 4 + and HCO 3 − , desorption of Ca 2+ and/or Sr 2+ from solid surfaces by NH 4 + and HCO 3

Bioremediation of strontium (Sr) contaminated aquifer

Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp By V Achal, X L Pan and D Y Zhang Year: 2012

Quantifying Technetium and Strontium Bioremediation

The highyield fission products 99 Tc and 90 Sr are found as problematic radioactive contaminants in groundwater at nuclear sites Treatment options for radioactively contaminated land include bioreduction approaches, and this paper explores 99m Tc and 90 Sr behavior and stability under a range of biogeochemical conditions stimulated by electron donor addition methods

Bioremediation of Sr2+ ion radionuclide by using marine

BACKGROUND Microbial biosorption is recognized as a resourceful process for the remediation of pollution from contaminated environs To investigate radionuclide bioremediation, carbohydrate contained extracellular polymeric substance (EPS) and strontium ion (Sr +) tolerant marine actinobacterium has been isolated and identified as Streptomyces sp CuOff24 through 16S rDNA

[PDF] Insitu bioremediation for treatment of sewage

Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp V Achal , X Pan , D Zhang Chemistry, Medicine

Strontium incorporation into calcite generated by

Strontium incorporation into calcite generated by bacterial ureolysis was investigated as part of an assessment of a proposed remediation approach for 90Sr contamination in groundwater

Effect of groundwater pH and ionic strength on strontium

Strontium is a pure beta emitter of 0546 MeV with a halflife of 288 years and is commonly found in many groundwater systems migrating from historic nuclear waste storage sites [1,2]

Rehabilitation of Radioactively Contaminated Soil: Use of

Achal V, Pan X, Zhang D (2012) Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp Chemosphere 89:764–768 CrossRef Google Scholar

Removal of Cesium, Strontium, Americium, Technetium and

Removal of Cesium, Strontium, Americium, Technetium and Plutonium from Radioactive Wastewater EPA Grant Number: RC061 Subproject: this is subproject number 061 , established and managed by the Center Director under grant R (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center)

Bioremediation of Hydrocarbons and Chlorinated Solvents in

Nov 29, 2016· The ‘optimum’ site conditions to implement engineered in situ bioremediation include a relatively uniform host media (eg river delta or floodplain deposits, glacial outwash or sand and gravel aquifer) with pHneutral groundwater, aquifer hydraulic conductivity of >8 m/day and, in the unsaturated zone, an intrinsic gas permeability of >8

strontium radioisotope meddic

Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp Achal V, Pan X, Zhang DSourceState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang , China

Environmental isotopes in biodegradation and bioremediation

Second, the bioremediation potential of two industrial sites contaminated with a mixture of organic pollutants (mainly DCM, chloroform (CF), trichloroethene (TCE), and monochlorobenzene (MCB

Partitioning of strontium between calcite and fluid

The Sr/Ca ratio of biogenic carbonate is widely used as a proxy for paleotemperature This application is supported by empirical calibrations of Sr/Ca as a function of temperature, but it is also k

Metataxonomic analyses reveal differences in aquifer

Metataxonomic approach was used to describe the bacterial community from a creosotecontaminated aquifer and to access the potential for in situ bioremediation of the polycyclic aromatic hydrocarbons (PAHs) by biostimulation In general, the wells with higher PAH contamination had lower richness and diversity than others, using the Shannon and Simpson indices

Toward A RiskBased Model for Bioremediation of

Toward A RiskBased Model for Bioremediation of Multicomponent NAPL Contaminants EPA Grant Number: RC026 Subproject: this is subproject number 026 , established and managed by the Center Director under grant R (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center)