Grantee Research Project Results

Fenton-Like Reductions for the Enhanced Desorption and Degradation of Biorefractory Contaminants

EPA Grant Number: R826163
Title: Fenton-Like Reductions for the Enhanced Desorption and Degradation of Biorefractory Contaminants
Investigators: Watts, Richard J. , Hess, Thomas F. , Teel, Amy L.
Current Investigators: Watts, Richard J. , Teel, Amy L. , Hess, Thomas F.
Institution: Washington State University , University of Idaho
Current Institution: Washington State University
EPA Project Officer: Aja, Hayley
Project Period: February 1, 1998 through January 31, 2001
Project Amount: $307,481
RFA: Exploratory Research - Environmental Engineering (1997) RFA Text | Recipients Lists
Research Category: Safer Chemicals , Land and Waste Management

Description:

The objective of the proposed research is to investigate occurrence, reactivity, and kinetics of Fenton-like reductions and determine the role of these reductions in enhancing the degradation of sorbed contaminants.

Approach:

Probe compounds that react with reductants, but not with hydroxyl radicals, will be used to investigate a range of conditions that generate Fenton's reductants. Reductant scavengers, such as chloroform, will also be used to confirm the existence of reductant species. Oxygen scavengers and process optimization will be evaluated for their ability to increase the effectiveness and stoichiometric efficiency of the Fenton's process, including lowering hydrogen peroxide levels required to promote the degradation of sorbed contaminants. Probe compounds and scavengers will be used to investigate the desorption of sorbed contaminants by reductants or hydroxyl radicals.

Expected Results:

The results obtained through the proposed research will provide more effective and low-cost process conditions for overcoming contaminant sorption and degrading a wide range of recalcitrant contaminants and their products in the Fenton-like treatment of contaminated soils and groundwater. Furthermore, the improved process conditions may have applications in the recycling of chemical process water, the in situ regeneration of granular activated carbon, and other industrial waste and pollution prevention applications.

Publications and Presentations:

Publications have been submitted on this project: View all 12 publications for this project

Journal Articles:

Journal Articles have been submitted on this project: View all 6 journal articles for this project

Supplemental Keywords:

soil, sediments, adsorption, organics, treatment, remediation, cleanup, oxidation, engineering, Scientific Discipline, Water, Waste, Toxics, Chemical Engineering, HAPS, Environmental Chemistry, Contaminated Sediments, Groundwater remediation, Environmental Engineering, Fenton's reagent, contaminated sediment, kinetic studies, sediment treatment, enhanced desporption, soil sediment, remediation, reactivity, Chloroform, hydroxyl radicals, Fenton-like reductions, degradation, sorbed contaminants

Progress and Final Reports:

The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.