摘要
The sorption of lead from water onto an agricultural by-product, tree fern, was examined as a function of pH. The sorption processes were carried out using an agitated and baffled system. Pseudo-second-order kinetic analyses were performed to determine the rate constant of sorption, the equilibrium sorption capacity, and the initial sorption rate. Application of the pseudo-second-order kinetics model produced very high coefficients of determination. Results showed the efficiency of tree fern as a sorbent for lead. The optimum pH for lead removal was between 4 and 7, with pH 4.9 resulting in better lead removal. Ion exchange occurred in the initial reaction period. In addition, a relation between the change in the solution hydrogen ion concentration and equilibrium capacity was developed and is presented.
原文 | 英語 |
---|---|
頁(從 - 到) | 1292-1296 |
頁數 | 5 |
期刊 | Bioresource Technology |
卷 | 96 |
發行號 | 11 |
DOIs | |
出版狀態 | 已發佈 - 7月 2005 |
ASJC Scopus subject areas
- 農學與作物科學
- 食品科學
- 製程化學與技術
- 應用微生物與生物技術