Ismadji, Suryadi, Dong Shen Tong, ., Soetaredjo, Felycia Edi, Ayucitra, Aning, Wei Hua Yu, . and Chun Hui Zhou, . (2016) Bentonite-hydrochar composite for removal of ammonium from Koi fish tank. Applied Clay Science, 114. pp. 146-154. ISSN 01691317
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Abstract
The work is concerned with a bentonite-hydrochar composite made from bentonite and cassava peel. Bentonite was obtained from a Ponorogo deposite, Indonesia, and cassava peel was agricultural waste. The preparation of the composite was carried out at 500°C under a flow of carbon dioxide. The sample was characterized by argon adsorption at 87 K, X-ray diffraction, scanning electron microscope, and Fourier transform infrared spectroscopy methods. The adsorption of ammonium from the solution was conducted in a batch condition at 30°C. The dynamic condition was employed in the removal of ammonium from Koi fish tank. Biochar and bentonite hydrochar composite samples had microporous structure whereas the bentonite in the composite possessed mesoporous structure. Langmuir and Freundlich adsorption isotherms were used to correlate the experimental data of adsorption of ammonium from Koi fish tank. The results indicated that the Langmuir equation described the adsorption experimental data well. Combination between van der Waals force and ion exchange increased the adsorption of ammonia onto the bentonite-hydrochar composite. Adsorption of ammonia in a real aquaculture system indicated that the composite could completely remove the ammonia from the Koi fish tank within 60 min
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bentonite Biochar Ammonia Composite Adsorption Koi fish |
| Subjects: | Engineering Engineering > Chemical Engineering |
| Divisions: | Journal Publication |
| Depositing User: | Suryadi. Ismadji |
| Date Deposited: | 11 Jan 2016 09:11 |
| Last Modified: | 19 Jul 2018 08:52 |
| URI: | http://repository.ukwms.ac.id/id/eprint/4175 |
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