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bioremediation of strontium sr contaminated aquifer

CLU-IN | Technologies > Remediation > About Remediation Technologies ...

Transport experiments in sediment columns indicated an expected radius of influence of at least 2.8 m for the injection of goethite nanoparticles. Findings were validated in a pilot-scale field study, where an in situ adsorption barrier of ca. 11 m × 6 m × 4 m was implemented in a zinc-contaminated aquifer.

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Wastewater Engineering: Advanced Wastewater Treatment Systems

The ability of microorganisms to adapt is what makes them very versatile in the bioremediation of contaminated sites 118 ... Bradley PM, Landmeyer JE (2006). Low-temperature MTBE biodegradation in aquifer sediments with a history of low, seasonal ground water temperatures. ... 187-202. Yerushalmi L, Manuel MF, Guiot SR (1999). Biodegradation of ...

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University of Louisville ThinkIR: The University of Louisville's ...

Paducah Gaseous Diffusion Plant (PGDP) to treat groundwater contaminated with trichloroethylene (TCE) and technetium-99 (Tc-99). The 1999 data used in the ITRD ... Bioremediation and . In Situ . Chemical Oxidation (ISCO) methods proved to be the most effective technologies ... Strontium-90 Subsurface Contaminant Focus Area Soil Vapor Extraction ...

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Phytoremediation | Stevie Famulari, Gds

Phytoremediation of atrazine by three emergent hydrophytes in a hydroponic system. Water Science and Technology66 (6), pp. 1282-1288. Iron (Fe), Manganese (Mn), and sulfides introduces oxygen into the water to oxidize materials to purify the water perennial wetland. Cold hardiness zones: 5 - 11.

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Eric Roden - Department of Geoscience - UW-Madison

Prepared for U.S. DOE Environmental Management Science Proposal "Reductive immobilization of U (VI) in Fe (III) oxide-reducing subsurface sediments: analysis of coupled microbial-geochemical processes in experimental reactive transport systems", E.E. Roden, PI/PD; M.M. Urrutia, M.O. Barnett, and C.J. Lange, Co-PIs.

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Title: Hydraulic aspects of riverbank filtration - field studies - LSU

Wastewater disposal, artificial groundwater recharge, in situ bioremediation of contaminated aquifers, construction of water reservoirs, or secondary oil recovery are all affected by this process. The present review provides an overview of the techniques that are used to study clogging in the laboratory, or to monitor it in field applications.

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A Low-Tech Bioreactor System for the Enrichment and ... - Sciendo

Feb 20, 2022Achal V. X. Pan and D. Zhang 2012 Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp Chemosphere 89 764 768 10.1016/j.chemosphere.2012.06.064 Search in Google Scholar. Agrawal L.K., Y. Ohashi, E. Mochida, H. Okui, Y. Ueki, H. Harada and A. Ohashi. 1997.

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Appendix D.3 100 N Groundwater (Rc Gw 2, River Corridor) Evaluation ...

EU Designation: RC‐GW‐2 (100‐NR‐2) D.3_RC‐GW‐2 in 100‐NR‐2_INT_Final_10‐5‐17 D.3‐ii This page intentionally left blank.

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Characterisation of surface uptake and biosorption of cationic nuclear ...

integrating into the matrix, Sr-90 continues to irradiate surrounding and muscle tissue resulting in sarcoma and leukaemia (Wohl et al., 2013). Due to such hazards, it is desirable to prevent the migration of water contaminated with nuclear radioisotopes into surface water and groundwater resources used as water supply sources.

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AND OPERATION OF THE PROPOSED - Lawrence Berkeley National Laboratory

Figure 3-10 Photographs of the Proposed FRC Contaminated and Background Areas at PNNL/Hanford. Back to the top. ... strontium, and chromium, among other constituents. 3.2.2 Climate and Air Quality. ... Groundwater beneath the Hanford Site is found in both an upper unconfined aquifer system and deeper basalt-confined aquifers (Neitzel et al ...

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100-N Area Strontium-90 Treatability Demonstration Project: Food Chain ...

The soil/sediment strontium (both stable and fission product) is held primarily via an ion-exchange mechanism that retards Sr and 90Sr transport (Serne and LeGore 1996). The sorption coefficient K dfor the 90Sr is between 15 and 40 mL/g, which means that at least 99% of the

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Microbial interaction with and tolerance of radionuclides: underlying ...

Dec 8, 2020The marine actinobacterial Nocardiopsis sp. and immobilized Aspergillus niger have been described as strontium biosorbent (Pan et al ., 2009; Sivaperumal et al ., 2018 ), and strontium can be biosorbed from aqueous solution by Bacillus cereus (Long et al ., 2017 ).

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Appendix E. Case Studies - Optimizing Injection Strategies and In situ ...

Calendar Year 2016 Annual Summary Report for 100-NR-2 Groundwater Remediation Contaminant Sr-90 Regulatory Phase Full-scale, pilot-scale, and monitoring Amendment (s) Calcium chloride, trisodium citrate, sodium phosphate, calcium-citrate-phosphate Remedial Technology Permeable reactive barrier Site Description and Approach Site Description:

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Permeable Reactive Barrier Treatment Technology for Remediation of ...

contaminated groundwater: Apatite®II and pecan shells. Representative contaminants, monitored continuously during the 2-D experiment included 87Sr (as a surrogate for 90Sr), NO3-and ClO 4-. On day 285 of the experiment influent and effluent samples, as well as solid materials from the 2-D cell, were collected for extensive analysis. These ...

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Explanation of Significant Differences

Meet the drinking water standards in groundwater for VOCs, Sr-90, and tritium, Achieve the goal of completing the cleanup of the Upper Glacial Aquifer in 30 years or less, and Prevent or minimize further migration of VOCs, Sr-90, and tritium in groundwater. Active treatment using various treatment technologies and continued monitoring were

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‪Varenyam Achal‬ - ‪Google Scholar‬

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

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United States Nuclear Regulatory Commission Official Hearing Exhibit In ...

for containment of strontium-90 contaminated groundwater, 4) In situ uranium stabilization through phosphate amendment injection/infiltration, 5) In situ biostimulation for the creation of a reducing barrier, and 6) the use of shear-thinning fluids for improved delivery or retention of remedial amendments.

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Bioremdiation of strontium (Sr) contaminated aquifer quartz sand based ...

In the present study, microbially induced calcite precipitation (MICP) was evaluated for its potential to remediate strontium from aquifer quartz sand. A Sr resistant urease producing Halomonas sp. was characterized for its potential role in bioremediation.

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Aditum | 771

Bioremediation is the process of degrading environmental pollutants into less hazardous forms using living creatures, typically bacteria. It degrades or detoxifies pollutants that are harmful to human health and/or the environment using naturally occurring bacteria, fungus, or plants.

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

The results demonstrate the potential for removal of trace levels of Tc-99 and Sr-90 (2+) from groundwaters during stimulated bioreduction and highlight that in the presence of stable Sr2+, optimal removal for technetium and strontium is likely to occur under mildly alkaline, reducing conditions. (c) 2013 The Authors. Published by Elsevier Ltd.

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Strontium in Drinking Water - Guideline Technical Document for Public ...

Switching to another source may involve drilling a new well in an aquifer containing low strontium levels, sealing off water-producing zones containing high strontium levels, or finding an uncontaminated surface water source. ... Achal, V., Pan, X. and Zhang, D. (2012). Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on ...

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Bioremediation of strontium (Sr) contaminated aquifer quartz sand based ...

Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp. Contamination of aquifers or sediments by radioactive strontium (90Sr) is a significant environmental problem.

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Phytoremediation of 137cesium and 90strontium from solutions and low ...

Vetiver grass ( Vetiveria zizanoides ) L. Nash plantlets when tested for their potential to remove 90 Sr and 137 Cs (5×10 3 k Bq l −1 ) from solutions spiked with individual radionuclide showed that 94% of 90 Sr and 61% of 137 Cs could be removed from solutions after 168 h. When both 90 Sr and 137 Cs were supplemented together to the solution, 91% of 90 Sr and 59% of 137 Cs were removed at ...

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ORCID

Bioremediation of Pb-Contaminated Soil Based on Microbially Induced Calcite Precipitation. Journal article ... Show more detail. Source: varenyam achal Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp. Journal article DOI: 10.1016/j.chemosphere.2012.06.064 ...

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(PDF) Bioremediation of strontium and technetium contaminated ...

Results showed that 95% of Sr was removed from solution in sediment microcosms treated with glycerol phosphate, and sequential extraction showed that ~18% of the Sr in the resulting solid phase was...

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Chapter 4 Environmental Systems Biology Approach to Bioremediation

Many times, bioremediation has been applied to sites that have initially high nitrate, sulfate, or iron, thus resulting in a "stall" which stopped the progression to redox conditions that would allow dehalorespiration of PCE/TCE in groundwater. For bioremediation, monitoring carefully TEA concentrations offers better control of

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Groundwater and microbial processes of Alabama coastal plain aquifers ...

1. Introduction [2] The sources of salinity and chemical evolution of groundwater in sedimentary aquifers remain one of the most controversial problems in basin hydrology. Coastal plain aquifers in central south Alabama are exploited for large quantities of drinking water at depths, but groundwater is locally contaminated with trace elements including Fe and Mn (>300 ug/mg) and its chloride ...

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Formations of calcium carbonate minerals by bacteria and its multiple ...

Achal V, Pan X, Zhang D (2012c) Bioremdiation of strontium (Sr) contaminated aquifer quartz sand based on carbonate precipitation induced by Sr resistant Halomonas sp. Chemosphere 89:764-768. Article ... Bioremediation of chromium contaminated soil: optimization of operating parameters under laboratory conditions. J Hazard Mater 118:113-120 ...

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360 Exam 2 example 041518.pdf - Environmental Soil Science...

Environmental Soil Science -Exam 2 2018 3 Part 2 (20 points) - Either answer question 21 or questions 22 through 25. (21) Draw the flow diagram for "clean up" of contaminated soil. The diagram should start with a box showing "contaminated soil" and then have arrows going to boxes showing "action" and "no action", etc. Then using that diagram and the knowledge please discuss ...

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EM International Program Modeling Activities - SRS

Challenging Problem--Released Radioactive Particles • Fuel components of finely dispersed fuel particles - Low volatility elements, such as cerium, zirconium, barium, lanthanum, strontium, and the actinides - Settled primarily within the ChEZ • Condensed components - Formed when radioactive gases ejected during the nuclear fuel fire, such as iodine, tellurium, cesium, and strontium,

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Superfund | US EPA

Sep 7, 2022Read the news release | Learn about the NPL. EPA's Superfund program is responsible for cleaning up some of the nation's most contaminated land and responding to environmental emergencies, oil spills and natural disasters. To protect public health and the environment, the Superfund program focuses on making a visible and lasting difference ...

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Assessing the Bacterial Ecology of Organohalide Respiration for the

Assessing the Bacterial Ecology of Organohalide Respiration for the

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Profile | Working with natural systems for sustainable futures ...

I am a geomicrobiologist interested in understanding the behaviour of contaminants and metals in the environment, and how microorganisms can be used for bioremediation and bioprocessing applications. My research is interdisciplinary and incorporates microbiology, mineralogy and geochemistry to develop new insights into biogeochemical metal ...

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Microbial Remediation of Heavy Metals and Arsenic-Contaminated ...

After the bioremediation, Pisum sativum seeds were planted in the soil and harvested after 60 days. Compared to Cr (VI) content of 7.5-18 mg/kg in the dry weight of different tissues of P. sativum grown in contaminated soil, bioremediation resulted in Cr (VI) content of only 0.34-0.65 mg/kg in its root, stem, and leaf.

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Bioremediation Science | Amitava Rakshit & Manoj Parihar & Binoy Sarkar ...

A comprehensive overview of recent advances and new development in the field of bioremediation research are provided within relevant theoretical framework to improve our understanding for the cleaning up of polluted water and contaminated land. The book is easy to read and language can be readily comprehended by aspiring newcomer, students ...

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Trace Metals in Groundwater and Vadose Zone Calcite: In Situ ... - CORE

Pump and treat systems are often futile if the goal is aquifer remediation (as opposed to the provision of clean extracted water for beneficial uses), because frequently the majority of the contaminant is associated with the aquifer matrix and thus inaccessible to pumping. This is true even for mobile contaminants such as 90Sr.

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Recent Trends in Bioremediation of Heavy Metals: Challenges and ...

TodayThe two isolates showed significant production of calcite and a coprecipitation of Pb and radionuclide strontium (Sr) in the form of carbonates (Dhami et al. 2017). Microbes by the processes of leaching, chelation, and redox transformation mobilize heavy metals from the contaminated site.

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Section 2.4 - Hanford Site

Strontium-90 contamination is found in portions of the vadose zone that were saturated during discharge operations and also in the underlying aquifer extending to the Columbia River. Other groundwater contaminants include tritium, nitrate, petroleum hydrocarbons, sulfate, and chromium. 100-NR-2 at a Glance

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Bioremediation: a genuine technology to remediate radionuclides from ...

Bioremediation has been viewed as the ecologically responsible alternative to environmentally destructive physical remediation. ... (137 Cs) and strontium-90 (90 Sr), which take a significantly long time to decay (Kurnaz et al., 2007). Additionally, 238 U decays to form 226 Ra, which has a ... At sites co-contaminated with metallic ions beyond ...

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MICROBES as GEOACTIVE AGENTS | 'SEARCH TERMS'

Oct 1, 2020Fungi isolated from calcareous soil were able to mediate carbonate precipitation of metals including strontium as strontianite (SrCO 3), and novel Sr‐substituted vaterite [(CaxSr 1 − x) ... to transform metalloids has been utilized successfully in the bioremediation of contaminated land and water. Selenium methylation results in ...

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