Ecology

Researchers' Work from Roma Tor Vergata University Focuses on Arsenic

  2012 JUL 6 (VerticalNews) -- By a News Reporter-Staff News Editor at Ecology, Environment & Conservation -- Fresh data on Arsenic are presented in a new report. According to news reporting out of Rome, Italy, by VerticalNews editors, researchers stated "This report deals with the application of ion exchange columns to the treatment of groundwater contaminated by high concentrations of arsenic in the presence of sulphates. Two different process layouts were tested, based on the use of a single column and of two-in-series columns, respectively."

  Our news journalists obtained a quote from the research by the authors from Roma Tor Vergata University, "Several breakthrough tests were performed, where the effect of the operating parameters, as the influent flow rate, the packed bed height and the feed water composition, were investigated. The collected data were described using three different modeling approaches, based on the Bohart-Adams, Yan and Thomas models, respectively. These models were all found to describe the experimental data with a quite good agreement (based on the R (2) value). The ion exchange capacity evaluated by the models (about 3.8 mEq/g) was comparable with the value provided by the supplier (3.8 mEq/g), but higher than the value determined through batch tests of a previous study by the same authors."

  According to the news editors, the researchers concluded: "The models were then successfully applied to describe the breakthrough behaviour of the two in-series column plant using a real feed contaminated by high arsenic concentrations in the presence of sulphate."

  For more information on this research see: Ion Exchange Treatment of Groundwater Contaminated by Arsenic in the Presence of Sulphate. Breakthrough Experiments and Modeling. Water Air and Soil Pollution, 2012;223(5):2373-2386. Water Air and Soil Pollution can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands.

  Our news journalists report that additional information may be obtained by contacting A. Chiavola, Roma Tor Vergata University, Fac Engn, Dipartimento Ingn Civile, I-00133 Rome, Italy.

  Keywords for this news article include: Rome, Italy, Europe, Arsenic

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