Abstract
Fishbone as a main backfill material of permeable reactive barrier to remediate groundwater contaminated with Co and Sr was investigated through single- and bi-solute competitive sorptions. The single-solute sorption data were fitted by Freundlich, Langmuir and Dubinin-Radushkevich models. The coefficients of determination (R2 > 0.91) indicated that all models fitted well. Maximum sorption capacities (qmL ) of Co and Sr predicted by the Langmuir model were 0.55 mmol/g and 0.50 mmol/g, respectively. The bi-solute competitive sorption of the metals was analyzed by the Langmuir, competitive Langmuir, Sheindorf-Rebhun-Sheintuch (SRS) and P-factor models. The sorbed amount of one solute in bi-solute system decreased due to competition with the other solute. Langmuir model parameters for single- (q mL and b L ) and bi-solute (qmL * and b L *) competitive sorptions were compared to analyze the effect of competition between the metals. The competitive Langmuir, SRS and P-factor models predicted the bi-solute competitive sorption data well (R2 > 0.93).
| Original language | English |
|---|---|
| Pages (from-to) | 789-799 |
| Number of pages | 11 |
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Volume | 295 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2013 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Cobalt
- Fishbone
- Groundwater
- Permeable reactive barrier (PRB)
- Sorption
- Strontium
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