Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration
In this study, rice husk (RH) and activated carbon (AC) adsorbents was used for removing of cadmium ion from aqueous solution at pH = 6. Equilibrium time was shortened with a decrease in initial concentration of Cd from 50 mg/l to 1 mg/l for both adsorbent. This time was 60 and 45 minutes for rice R...
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| Format: | Article |
| Language: | fas |
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Marvdasht Branch, Islamic Azad University
2013-03-01
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| Series: | مهندسی منابع آب |
| Subjects: | |
| Online Access: | https://wej.marvdasht.iau.ir/article_76_f62b454ac2a266056c4ca6436f67f89c.pdf |
| _version_ | 1797359756945391616 |
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| author | Z. Shamohammadi Heidari |
| author_facet | Z. Shamohammadi Heidari |
| author_sort | Z. Shamohammadi Heidari |
| collection | DOAJ |
| description | In this study, rice husk (RH) and activated carbon (AC) adsorbents was used for removing of cadmium ion from aqueous solution at pH = 6. Equilibrium time was shortened with a decrease in initial concentration of Cd from 50 mg/l to 1 mg/l for both adsorbent. This time was 60 and 45 minutes for rice RH and AC, respectively. Furthermore, not only the equilibrium time decreased with increasing initial concentration from 50 mg/l to 500 mg/l, but it became identical for both absorbents. Adsorption efficiency increased with a decrease in initial concentration of solution for both adsorbents. Maximum adsorption efficiency was found for RH and AC at initial concentration of 1 mg/l. Obtained adsorption efficiency at this concentration were approximately 98.0 and 99.7 percent for RH and AC, respectively. Fitting the results to the Lagergren (1898) and Ho et al. (1996) models was also attempted; the latter model better described the outcome. Moreover, the Freundlich isotherm better described the data than the Langmuir isotherm. |
| first_indexed | 2024-03-08T15:28:24Z |
| format | Article |
| id | doaj.art-4f6d689ee1204a168c9a5c07969b0cb1 |
| institution | Directory Open Access Journal |
| issn | 2008-6377 2423-7191 |
| language | fas |
| last_indexed | 2024-03-08T15:28:24Z |
| publishDate | 2013-03-01 |
| publisher | Marvdasht Branch, Islamic Azad University |
| record_format | Article |
| series | مهندسی منابع آب |
| spelling | doaj.art-4f6d689ee1204a168c9a5c07969b0cb12024-01-10T08:06:02ZfasMarvdasht Branch, Islamic Azad Universityمهندسی منابع آب2008-63772423-71912013-03-016شماره 1611076Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low ConcentrationZ. Shamohammadi Heidari0دانشیار گروه مهندسی آب دانشگاه زابلIn this study, rice husk (RH) and activated carbon (AC) adsorbents was used for removing of cadmium ion from aqueous solution at pH = 6. Equilibrium time was shortened with a decrease in initial concentration of Cd from 50 mg/l to 1 mg/l for both adsorbent. This time was 60 and 45 minutes for rice RH and AC, respectively. Furthermore, not only the equilibrium time decreased with increasing initial concentration from 50 mg/l to 500 mg/l, but it became identical for both absorbents. Adsorption efficiency increased with a decrease in initial concentration of solution for both adsorbents. Maximum adsorption efficiency was found for RH and AC at initial concentration of 1 mg/l. Obtained adsorption efficiency at this concentration were approximately 98.0 and 99.7 percent for RH and AC, respectively. Fitting the results to the Lagergren (1898) and Ho et al. (1996) models was also attempted; the latter model better described the outcome. Moreover, the Freundlich isotherm better described the data than the Langmuir isotherm.https://wej.marvdasht.iau.ir/article_76_f62b454ac2a266056c4ca6436f67f89c.pdfcadmium ionrice huskactivated carbonequilibrium timeadsorption efficiency |
| spellingShingle | Z. Shamohammadi Heidari Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration مهندسی منابع آب cadmium ion rice husk activated carbon equilibrium time adsorption efficiency |
| title | Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration |
| title_full | Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration |
| title_fullStr | Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration |
| title_full_unstemmed | Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration |
| title_short | Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration |
| title_sort | comparisons of rice husk and activated carbon in removal of cadmium from aqueous solution in low concentration |
| topic | cadmium ion rice husk activated carbon equilibrium time adsorption efficiency |
| url | https://wej.marvdasht.iau.ir/article_76_f62b454ac2a266056c4ca6436f67f89c.pdf |
| work_keys_str_mv | AT zshamohammadiheidari comparisonsofricehuskandactivatedcarboninremovalofcadmiumfromaqueoussolutioninlowconcentration |