Complexation of cobalt by natural ligands in freshwater

Article Abstract:

Free cobalt (CO) ionic concentrations and cobalt (CO) complexation by natural organic ligands in freshwater was assessed through the use of ligand exchange with dimethyl glyoxime (DMG) and differential pulse cathodic stripping voltammetry. The process revealed concentrations that range from 0.5 to 6.5 nM for total dissolved Co and from 0.05 to 0.5 nM for free Co(II) ionic concentrations. Samples collected from various sites in Switzerland revealed the predominance of organic complexes of Co.

Ligands, Ligands (Chemistry)

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Behavior of heavy metals, nutrients, and major components during roof runoff infiltration

Article Abstract:

Percolation of roof runoff water through an artificial infiltration site yielded information regarding the behavior of heavy metals (Cd,Cu,Zn,Cr,Pb), major ions, and nutrients (organic C,P, and N parameters). Concentrations were highest during the beginning of rain. Differences among different compounds were noted.

Switzerland, Lead, Zinc, Primary copper, Copper, Primary Smelting and Refining of Copper, Cadmium, Chromium, Lead products, Copper industry, Science and technology policy, Zinc products, Nonferrous metal industry, Nonferrous metal industries, Copper products, Lead industry, Zinc industry, Chromium (Metal)

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Simultaneous recovery of metals and destruction of organic species: Cobalt and phthalic acid

Article Abstract:

A research report examines attempts to remove cobalt and phthalic acid from industrial effluent, both of which interfere with the removal of organic contaminants.

United States, Statistical Data Included, Illustration, Water pollution

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