Contaminant-Organic Complexes, Their Structure and Energetics in Surface Decontamination Processes

PDF Version Also Available for Download.

Description

There are a wide variety of compounds that are naturally occurring biodegradable organic chelates (siderophores) that appear to be more effective at oxide dissolution and actinide complexation than EDTA or other organic acids now used in decontamination processes. These chelates bind hard acids [Fe(III) and actinides(IV)] with extraordinarily high affinities. For example, the binding constant for the siderophore enterobactin with iron is about 1050, and its binding constant for Pu(IV) is estimated to be as high. Hence, this project is investigating the efficacy of using siderophores (or siderophore-like chelates) as decontamination agents of metal surfaces. The specific goals of this ... continued below

Physical Description

vp.

Creation Information

Ainsworth, Calvin C.; Friedrich, Donald M.; Hay, Benjamin P.; Myneni, Satish C. B. & Traina, Samuel J. June 1999.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Sponsor

Publishers

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

There are a wide variety of compounds that are naturally occurring biodegradable organic chelates (siderophores) that appear to be more effective at oxide dissolution and actinide complexation than EDTA or other organic acids now used in decontamination processes. These chelates bind hard acids [Fe(III) and actinides(IV)] with extraordinarily high affinities. For example, the binding constant for the siderophore enterobactin with iron is about 1050, and its binding constant for Pu(IV) is estimated to be as high. Hence, this project is investigating the efficacy of using siderophores (or siderophore-like chelates) as decontamination agents of metal surfaces. The specific goals of this project are as follows: 1. develop an understanding of the surface interaction between siderophores (and their functional moieties), iron, and actinide oxides; their surface chemical properties that foster their dissolution; and the conditions that maximize that dissolution 2. develop the computational tools necessary to predict the reactivity of different siderophore functional groups toward oxide dissolution and actinide(IV) solubilization 3. identify likely candidate chelates for use in decontamination processes. To meet these objectives, the project combines molecular spectroscopy and computational chemistry to provide basic information on the structure and bonding of siderophore functional groups to metal (iron and uranium) oxide specimens common to corrosion products and scales on carbon steel and stainless steel encountered in U.S. Department of Energy (DOE) facilities. The project explores fundamental scientific aspects of oxide mineral surface chemistry and dissolution related to chelate-induced solubilization. The spectroscopic and computational aspects of this project are complemented by macroscopic dissolution and solubilization studies of oxides and associated contaminants. From this combination of molecular, macroscopic, and computational studies, structure-function and structure-reactivity relationships will be developed.

Physical Description

vp.

Source

  • Other Information: PBD: 1 Jun 1999

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: EMSP-64947-1999
  • Grant Number: FG07-98ER14926
  • DOI: 10.2172/831220 | External Link
  • Office of Scientific & Technical Information Report Number: 831220
  • Archival Resource Key: ark:/67531/metadc785212

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • June 1999

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • April 6, 2016, 6:17 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 4
Total Uses: 7

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Ainsworth, Calvin C.; Friedrich, Donald M.; Hay, Benjamin P.; Myneni, Satish C. B. & Traina, Samuel J. Contaminant-Organic Complexes, Their Structure and Energetics in Surface Decontamination Processes, report, June 1999; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc785212/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.