Kohar, Indrajati and Setyaningrum, Idfi (2002) STUDI PENDAHULUAN KEMAMPUAN SEKAM DAN JERAMI PADI YANG TELAH DIOLAH DENGAN BERBAGAI KONSENTRASI LARUTAN NaOH UNTUK MENJERAP Cd DAN Pb. Unitas, 10 (2). pp. 71-83. ISSN 0854-3097
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Abstract
In order to find a method and cheaper materials to eliminate or reduce the polution of heavy metals in water, a research using husk and straw to adsorb heavy metals had been conducted. In the previous studies husk has been used to adsorb heavy metals Cd and Pb. In this study husk and straw is used after pretreatment with 1%, 2%, 3%, and 4% NaOH solutions. Treatment of straw with 2% NaOH solution and with 1 hour soaking showed the highest activity in Cd adsorbtion, however, with the increase of the concentration of straw from 1% ke 3% the increase in the adsorption is only around 2%; while when straw was treated with NaOH 3%, the increase of % adsorbed of Cd is very high in line with the rise of concentration of straw from 1% to 3% using soaking time 1 and 4 hours. Husk in general showed a lower adsorption activity on Cd and also Pb compared to straw, especially when treated with NaOH 1% dan 2% solutions. The highest % adsorption for Pb is obtained from 3% and 4% straw treated with NaOH 3% dan 4% solutions regardless of the soaking time, whereas for Cd it can also be obtained from 4% straw treated with NaOH 3% dan 4% solutions and was soaked for 4 hours.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | husk, straw, heavy metals elimination. |
| Subjects: | R Medicine > RS Pharmacy and materia medica |
| Divisions: | Faculty of Pharmacy > Department of Pharmacy |
| Depositing User: | Perpustakaan UBAYA |
| Date Deposited: | 28 Nov 2011 08:12 |
| Last Modified: | 24 Mar 2021 14:15 |
| URI: | http://repository.ubaya.ac.id/id/eprint/27 |
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