Effect of pH and Contact Time on the Adsorption of Pb(II) by Kapok Wood (Ceiba pentandra) Sawdust Based Biosorbent
| Autor: | Ariany Zulkania, Ardiansyah Putra, Pratikno Hidayat, Achmad Chafidz, Widi Astuti, Dikma D.W. Pramono |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
biology Ceiba Contact time Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics biology.organism_classification Pulp and paper industry 01 natural sciences 0104 chemical sciences Acid activation Adsorption Wastewater Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science Sawdust 0210 nano-technology |
| Zdroj: | Materials Science Forum. 1029:159-165 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.1029.159 |
| Popis: | With rapid industrial development, the water pollution due to industrial wastewater discharge also increases. Wastewater containing heavy metals such as Lead (Pb(II)) has been one of the serious global issues. It is because lead has a high level of toxicity and very harmful to the environment as well as human body even at low level of concentration. One of the emerging methods for removal of Pb(II) from aqueous solution is called biosorption. It is adsorption process using biomass-based adsorbent or can be called biosorbent. One of biomass material that can be used for the biosorbent for removal of Pb(II) is Kapok wood sawdust. In this study, biosorbent based Kapok sawdust has been successfully prepared. The effects of pH and contact time on the adsorption performance of the biosorbent have been studied. The adsorption tests were carried out with variations in pH 4, 5, 6, and 7 and with variations in contact time of 30, 60, and 90 minutes. The amout of Pb(II) adsorbed was analyzed using Atomic Absorption Spectroscopy (AAS). The adsorption test results showed that the equilibrium contact time required for the biosorbent to absorb Pb(II) was 60 minutes, while the pH optimum was achieved at pH = 7. Furthermore, from the adsorption test results, it has also been concluded that the optimum adsorption capacity (qe) 4.83 mg/g and removal percentage (96.6%) was achieved by Adsorbent A (i.e. Kapok sawdust biosorbent activated with 0.2 M HNO3). |
| Databáze: | OpenAIRE |
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