Sorption of boric acid and borax by activated carbon impregnated with various compounds
Abstract
The separation of boron compounds, boric acid and borax from aqueous solution by activated carbon before and after impregnation with various compounds was studied. A series of activated carbons was prepared from coconut shell impregnated with calcium and barium chlorides, citric and tartaric acids. The examined processes were performed in batch and continuous systems under equilibrium and dynamic conditions. Impregnation was found to change the adsorption capacity, suggesting that the nature of the impregnant affects the surface area and sorption characteristics of the sorbent. The results obtained show that the use of barium or calcium as impregnants leads to a decrease of the amount of boron adsorbed. The presence of citric or tartaric acid is essential for the enhancement of the amount of adsorbed boron above that for the untreated activated carbon or the carbon initially impregnated with calcium and barium chlorides. The results are represented in terms of the sorption capacities o...f the examined materials.
Keywords:
activated carbon / boric acid / borax / impregnation / adsorptionSource:
Carbon, 1996, 34, 6, 769-774Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
DOI: 10.1016/0008-6223(96)00009-7
ISSN: 0008-6223
WoS: A1996VA05400009
Scopus: 2-s2.0-0029699530
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Rajaković, Ljubinka V. AU - Ristić, Mirjana PY - 1996 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/93 AB - The separation of boron compounds, boric acid and borax from aqueous solution by activated carbon before and after impregnation with various compounds was studied. A series of activated carbons was prepared from coconut shell impregnated with calcium and barium chlorides, citric and tartaric acids. The examined processes were performed in batch and continuous systems under equilibrium and dynamic conditions. Impregnation was found to change the adsorption capacity, suggesting that the nature of the impregnant affects the surface area and sorption characteristics of the sorbent. The results obtained show that the use of barium or calcium as impregnants leads to a decrease of the amount of boron adsorbed. The presence of citric or tartaric acid is essential for the enhancement of the amount of adsorbed boron above that for the untreated activated carbon or the carbon initially impregnated with calcium and barium chlorides. The results are represented in terms of the sorption capacities of the examined materials. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Carbon T1 - Sorption of boric acid and borax by activated carbon impregnated with various compounds EP - 774 IS - 6 SP - 769 VL - 34 DO - 10.1016/0008-6223(96)00009-7 ER -
@article{ author = "Rajaković, Ljubinka V. and Ristić, Mirjana", year = "1996", abstract = "The separation of boron compounds, boric acid and borax from aqueous solution by activated carbon before and after impregnation with various compounds was studied. A series of activated carbons was prepared from coconut shell impregnated with calcium and barium chlorides, citric and tartaric acids. The examined processes were performed in batch and continuous systems under equilibrium and dynamic conditions. Impregnation was found to change the adsorption capacity, suggesting that the nature of the impregnant affects the surface area and sorption characteristics of the sorbent. The results obtained show that the use of barium or calcium as impregnants leads to a decrease of the amount of boron adsorbed. The presence of citric or tartaric acid is essential for the enhancement of the amount of adsorbed boron above that for the untreated activated carbon or the carbon initially impregnated with calcium and barium chlorides. The results are represented in terms of the sorption capacities of the examined materials.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Carbon", title = "Sorption of boric acid and borax by activated carbon impregnated with various compounds", pages = "774-769", number = "6", volume = "34", doi = "10.1016/0008-6223(96)00009-7" }
Rajaković, L. V.,& Ristić, M.. (1996). Sorption of boric acid and borax by activated carbon impregnated with various compounds. in Carbon Pergamon-Elsevier Science Ltd, Oxford., 34(6), 769-774. https://doi.org/10.1016/0008-6223(96)00009-7
Rajaković LV, Ristić M. Sorption of boric acid and borax by activated carbon impregnated with various compounds. in Carbon. 1996;34(6):769-774. doi:10.1016/0008-6223(96)00009-7 .
Rajaković, Ljubinka V., Ristić, Mirjana, "Sorption of boric acid and borax by activated carbon impregnated with various compounds" in Carbon, 34, no. 6 (1996):769-774, https://doi.org/10.1016/0008-6223(96)00009-7 . .