The influence of soil to solution ratio on cadmium removal from soils using anionic surfactants
The effectiveness of cadmium removal from soils by two anionic surfactants at different soil/solution ratio (m/V) was investigated. At critical micelle concentration (CMC) Rosulfan L reduced surface tension of water more sufficiently than ABS Na/S. In soil/surfactant systems CMC values clearly increased in comparison with fresh solutions, indicating surfactants sorption.
The increase of m/V from 1/20 to 1/80 ratio resulted in enhancement of cadmium removal effectiveness. For ABS Na/S it increased from 5.4 to 8.2% (loam sand) and from 11.7 to 26.3% (medium loam). Better results were obtained for Rosulfan L. Along with increase of samples dilution, the effectiveness changed between 11.6% and 19.1% in loam sand, whereas in medium loam from 30.4 to 50.9%. Regardless of soil/solution ratio, higher effectiveness of cadmium removal was obtained from medium loam, what might be probably connected with lower surfactants sorption.
| Copyright: | © Aristotle University of Thessaloniki | |
| Source: | 2nd International Conference 2009 (Juni 2009) | |
| Pages: | 7 | |
| Price inc. VAT: | € 5,00 | |
| Autor: | Z. Gusiatin  Ewa Klimiuk Tomasz Pokój Dorota Kulikowska | |
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