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Reduction and dissolution of manganese(III) and manganese(IV) oxides by organics: 2. Survey of the reactivity of organics.
Reduction and dissolution of manganese(III,IV) oxide suspensions by 27 aromatic and nonaromatic compounds resembling natural organics were examined in order to understand the solubilization reactionExpand
Reductive Dissolution of Manganese(III/Iv) Oxides by Substituted Phenols.
  • A. Stone
  • Chemistry, Medicine
  • Environmental science & technology
  • 1 October 1987
Evidence indicates that the fraction of oxide surface sites occupied by substituted phenols is quite low, and a mechanism for the surface chemical reaction has been postulated to account for these effects. Expand
Hydrogen peroxide use to increase oxidant capacity for in situ bioremediation of contaminated soils and aquifers: A review
Abstract Biotransformation of organic pollutants is often most effective and complete under oxic or oxidant-rich conditions. Dissolved oxygen availability is frequently limiting the biotransformationExpand
Reduction and dissolution of manganese(III) and manganese(IV) oxides by organics. 1. Reaction with hydroquinone.
A model is proposed for the observed rate dependence, according to which complex formation between hydroquinone and manganese oxide surface sites occurs prior to electron transfer, as well as for the apparent activation energy of the solubilization reaction. Expand
Nonreversible Adsorption of Divalent Metal Ions (MnII, CoII, NiII, CuII, and PbII) onto Goethite: Effects of Acidification, FeII Addition, and Picolinic Acid Addition.
Experiments performed under strict exclusion of O 2 reveal a slight increase in Co II, Ni II , and Cu II adsorption upon the addition of 1000 μM Fe II, indicating adsorbption/desorption hysteresis. Expand
Reversible redox chemistry of quinones: impact on biogeochemical cycles.
The goal of this review is to examine the source, reactivity, and fate of potential quinone catalysts with respect to chemical interactions that will inevitably occur in complex environmental media. Expand
Reduction of oxamyl and related pesticides by FeII: influence of organic ligands and natural organic matter.
Kinetic measurements demonstrate that natural organic matter from the Great Dismal Swamp facilitates OCP reduction by FeII in the same manner as the individual organic ligands. Expand
Influence of calcite and dissolved calcium on uranium(VI) sorption to a hanford subsurface sediment.
The influence of calcite and dissolved calcium on U(VI) adsorption was investigated using a calcite-containing sandy silt/clay sediment from the U. S. Department of Energy Hanford site. U(VI)Expand
Microbial metabolites and the reductive dissolution of manganese oxides: Oxalate and pyruvate
Abstract Microorganisms may participate in the reductive dissolution of Mn oxides in sediments either directly, by using Mn oxides as a terminal electron acceptor, or indirectly, through theExpand