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Removal of Chromium (VI) from Wastewater by Palm Kernel Shell-based on a Green Method | ||
Journal of Chemical Health Risks | ||
مقاله 8، دوره 9، شماره 1، خرداد 2019، صفحه 75-86 اصل مقاله (658.71 K) | ||
نوع مقاله: Original Article | ||
شناسه دیجیتال (DOI): 10.22034/jchr.2019.664165 | ||
نویسندگان | ||
Maryam Razavi Mehr1؛ Mohammad Hossein Fekri* 2؛ Faezeh Omidali1؛ Noushin Eftekhari2؛ Behrouz Akbari-adergani3 | ||
11Department of Chemistry, Ayatollah Boroujerdi University, Borujerd, Iran | ||
2Department of Chemistry, Ayatollah Boroujerdi University, Borujerd, Iran | ||
3Food and Drug Laboratory Research Center, Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran | ||
چکیده | ||
The potential of palm kernel shell, as agricultural waste, to remove Cr (VI) from aqueous solution was evaluated. Effective parameters such as pH (2–8), temperature (20–80 °C), contact time (10-120 min), adsorbent concentration (0.1–1 g/L), and initial Cr (VI) concentration (10-100 mg/L) were all studied to attain the maximum removal efficiency. Results show the adsorption capacity increases as pH value decreases and the optimum pH value is pH= 2.0. The other optimal conditions are temperature 40 °C, contact time 45 min, adsorbent concentration 0.5 g/L and initial Cr (VI) concentration 10 mg/L. The equilibrium data for chromate adsorption well fitted to Freundlich equation, with maximum adsorption capacity of 125 mg/g. This novel activated carbon derived from palm shell powder has been found to be effective for the removal of Cr (VI) and not noxious to the ecosystem. | ||
کلیدواژهها | ||
Activated Carbon؛ Adsorption capacity؛ Chromium (VI)؛ Freundlich isotherm؛ Palm Kernel Shell | ||
مراجع | ||
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