Comparing natural and mineral adsorbents in removing chromium from aquatic environment
| Autor: | Parisan Taherian, Zahra Zeraatkar, Ali Shahidi, Abbas Khashei Siuki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Clinoptilolite
Mineral Desalination 020209 energy 020208 electrical & electronic engineering General Engineering chemistry.chemical_element 02 engineering and technology Engineering (General). Civil engineering (General) Hazardous materials removal Chromium chemistry.chemical_compound Adsorption chemistry Aquatic environment Environmental chemistry Metal extraction 0202 electrical engineering electronic engineering information engineering Membrane bioreactor Hexavalent chromium TA1-2040 Zeolite Carbon Groundwater |
| Zdroj: | Ain Shams Engineering Journal, Vol 12, Iss 3, Pp 2593-2601 (2021) |
| ISSN: | 2090-4479 |
| Popis: | The aim of this study is to investigate the possibility of removing hexavalent chromium using grape leaf, carbon from grape leaf, and barberry root and then comparing these natural adsorbents with a mineral adsorbent (clinoptilolite zeolite). In this study, the adsorption process was altered by changing pH, contact time, the amount of adsorbent weight, the initial concentration of chromium, and temperature. The optimal contact time for removal efficiency of grape leaf, carbon, barberry root, and clinoptilolite zeolite was obtained equal to 60, 90, 90, and 120 min, respectively. The best removal efficiency for grape leaf, carbon, barberry root, and clinoptilolite zeolite occurred when their concentrations were 0.3, 0.1, 0.5, and 2 g, respectively. The results also indicated the maximum absorption capacity was achieved through grape leaf (98.7%) and zeolite (99.8%) at 22 °C, carbon (85.7%) at 40 °C, and barberry root (97.8%) at 50 °C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|