Methods for analysis of inorganic substances in water and fluvial sediments

Fishman, M. J.; Friedman, Linda C.; Erdmann, David E.; Duncan, Scott

doi:10.3133/ofr78679

Cited by 99 publications

(102 citation statements)

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“…Columns were sampled by removing a 5 ml aliquot from the effluent at the top of the column at predetermined times. The Cr(VI) concentration in all experiments was determined using the DPC spectrophotometric assay (33).…”

Section: Aes) (Perkin-elmer Optima 5300dv)mentioning

confidence: 99%

Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering

Cutting

Coker

Telling

et al. 2010

Environ. Sci. Technol.

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To optimise the production of biomagnetite for the bioremediation of metal oxyanion contaminated waters, the reduction of aqueous Cr(VI) to Cr(III) by two biogenic magnetites and a synthetic magnetite was evaluated under batch and continuous flow conditions. Results indicate that nano-scale biogenic magnetite produced by incubating synthetic schwertmannite powder in cell suspensions of Geobacter sulfurreducens is more efficient at reducing Cr(VI) than either biogenic nano-magnetite produced from a suspension of ferrihydrite "gel" or synthetic nano-scale Fe 3 O 4 powder.Although X-ray Photoelectron Spectroscopy (XPS) measurements obtained from postexposure magnetite samples reveal that both Cr(III) and Cr(VI) are associated with nanoparticle surfaces, X-ray Magnetic Circular Dichroism (XMCD) studies indicate that some Cr(III) has replaced octahedrally coordinated Fe in the lattice of the magnetite.Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) measurements of total aqueous Cr in the associated solution phase indicated that, although the majority of Cr(III) was incorporated within or adsorbed to the magnetite samples, a proportion (~10-15 %) was released back into solution. Studies of Tc(VII) uptake by magnetites produced via the different synthesis routes also revealed significant differences between them as regards effectiveness for remediation. In addition, column studies using a γ-camera to obtain real time images of a 99m Tc(VII) radiotracer were performed to visualise directly the relative performances of the magnetite sorbents against ultra-trace concentrations of 2 metal oxyanion contaminants. Again, the magnetite produced from schwertmannite proved capable of retaining more (~20 %) 99m Tc(VII) than the magnetite produced from ferrihydrite, confirming that biomagnetite production for efficient environmental remediation can be fine-tuned through careful selection of the initial Fe(III) mineral substrate supplied to Fe(III)-reducing bacteria.3

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Section: Aes) (Perkin-elmer Optima 5300dv)mentioning

confidence: 99%

Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering

Cutting

Coker

Telling

et al. 2010

Environ. Sci. Technol.

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“…Those constituents that are designated as "total recoverable" are from reference samples that have undergone a digestion process (Skougstad et al 1979) during analysis, rather than from unfiltered or "whole-water" samples.…”

Section: Usgs Analytical Laboratory Standard Reference Water Sample Pmentioning

confidence: 99%

Data Qualification Report: Major Ion and Ph Data for Use on the Yucca Mountain Project

Wilson¹,

Jenkins²,

Steinborn³

et al. 2000

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EXECUTTVE SUMMARYThis data qualification report uses technical assessment and corroborating data methods according to Attachment 2 of AP-SIII.2Q, Rev. 0, ICN 2, QzralrJication of Unqrraly5ed Data and the Doczlmentation of Rationale for Accepted Data, to qualify major ion and pH data. This report was prepared in accordance with Data Qualification Plan TDP-NBS-GS-00003 1, Revision 2. Additional reports will be prepared to address isotopic and precipitation-related data.Most of the data considered in this report were acquired and developed by the U.S. Geological Survey (USGS). The data qualification team considers the sampling and analytical protocols employed by the USGS over the time period of data ?cquisition to be state-of-the-art. The sample collection methodologies have evolved with no significant change that could affect the quality of the data considered in this report into the currently used Hydrologic Procedures that support the Yucca Mountain Project-approved USGS Quality Assurance Program Plan. Consequently, for USGS data, the data collection methods, documentation, and results are reasonable and appropriate in view of standard practice at the time the data were collected.A small number of data sets were collected by organizations other than the USGS and were reviewed along with the other major ion and pH data using corroborating data methods. Hydrochemical studies reviewed in this qualification report indicate that the extent and quality of corroborating data are sufficient to support qualification of both USGS and non-USGS major ion and pH data for generalized hydrochemical studies.

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“…Chemical analyses of unfiltered water samples by flame atomic absorption spectrometry was done in the mid-1980s at the USGS National Water-Quality Laboratory in Lakewood, Colorado [17,21]. Unfiltered, acid-preserved surface-water samples collected by USGS and ODEQ staff in the mid- …”

Section: Samplingmentioning

confidence: 99%

Changes in Selected Metals Concentrations from the Mid-1980s to the Mid-2000s in a Stream Draining the Picher Mining District of Oklahoma

Andrews¹,

Masoner²

2011

TOEBMJ

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After abandonment in the late 1960s, the Picher mining district of Oklahoma, once the largest source of lead and zinc in the world, continued to be affected by severe environmental degradation, with scattered subsidence and abundant toxic metals such as cadmium and lead seeping from flooded underground mine workings and seeping and running off from as much as 60 million tons of mine tailings remaining at the land surface. Water-quality data collected during the mid-1980s and the mid-2000s at the Tar Creek at 22nd Street Bridge in Miami, Oklahoma streamflow-gaging station (USGS number 07185095), located downstream from much of the district, indicate that total concentrations of iron, manganese, and zinc significantly decreased between the two sampling periods. Those water-quality improvements probably are due to a combination of reclamation activities and natural attenuation processes such as stabilization of exposed minerals in flooded underground mine workings, progressive wind and water erosion of the most readily erodible metalliferous particles from tailings, and colonization of volunteer plants that reduce physical erosion of soils and tailings.

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Methods for analysis of inorganic substances in water and fluvial sediments

Cited by 99 publications

References 0 publications

Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering

Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering

Data Qualification Report: Major Ion and Ph Data for Use on the Yucca Mountain Project

Changes in Selected Metals Concentrations from the Mid-1980s to the Mid-2000s in a Stream Draining the Picher Mining District of Oklahoma

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