Removal of anionic pollutants from groundwaters using Alamine 336: chemical equilibrium modelling
✍ Scribed by Eugenio Bringas; M Fresnedo San Román; Inmaculada Ortiz
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2006
- Tongue
- English
- Weight
- 143 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0268-2575
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
This work reports the study of the chemical equilibrium of the extraction of chromium(VI) anions from groundwaters where other anionic species are present, mainly sulfate and chloride anions, using Alamine 336 as extractant. The analysis was performed working with two different systems: (i) a binary system (sulfate and chloride anions) and, (ii) a tertiary system (chromium, sulfate and chloride anions) with a composition of 9.6–15.4 mol Cr^6+^ m^−3^, 5.2–16.7 mol SO~4~^2−^ m^−3^ and 4.2–13.5 mol Cl^−^ m^−3^ respectively. A careful experimental design was performed and the data were correlated to the mathematical models obtaining the equilibrium parameters of the extraction reactions in both systems. Copyright © 2006 Society of Chemical Industry