Adsorption of selected metals from cassava processing wastewater using cow-bone ash
In this study, the efficiency of cow-bone ash (CBA) as an adsorbent for the removal of metals from real-time cassava wastewater was examined. Wastewater was characterized using atomic absorption spectrophotometry (AAS). The adsorbent was characterized using X-ray Fluorescence (XRF), Scanning electro...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-11-01
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| Series: | Scientific African |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468227620303896 |
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| author | R.A. Olaoye O.D. Afolayan K.A. Adeyemi L.O. Ajisope O.S. Adekunle |
| author_facet | R.A. Olaoye O.D. Afolayan K.A. Adeyemi L.O. Ajisope O.S. Adekunle |
| author_sort | R.A. Olaoye |
| collection | DOAJ |
| description | In this study, the efficiency of cow-bone ash (CBA) as an adsorbent for the removal of metals from real-time cassava wastewater was examined. Wastewater was characterized using atomic absorption spectrophotometry (AAS). The adsorbent was characterized using X-ray Fluorescence (XRF), Scanning electron microscopy (SEM), and Fourier transform infrared FTIR. The effect of adsorbent dose, contact time, and agitation speed was investigated by a batch experiment performed in triplicate, and the removal efficiency of the ions calculated. Characterization of the cassava wastewater revealed that the concentration of Fe2+, Zn2+, Pb2+, and Mn2+were above the USEPA permissible limit. The adsorbent's characterization showed that it possesses crystalline nature, porous and rough surface, and the presence of CH, C = O, and CO functional groups. The optimum adsorbent dose was 0.02 g/100 mL for Fe2+ and Zn2+, and 0.04 g/100 mL for Mn2+ and Pb2 at an optimum contact time of 60 min and agitation speed of 150 rpm. The maximum metal removal efficiency obtained were 99%, 97%, 93% and 98% for Fe2+, Zn2+, Pb2+, and Mn2, respectively. Cow-bone ash offers efficient and cost-effective removal of Fe2+, Zn2+, Pb2+, and Mn2+from cassava wastewater. |
| first_indexed | 2024-12-14T20:18:57Z |
| format | Article |
| id | doaj.art-f9fdd206ec064d6ab2a31a6dfc2218b6 |
| institution | Directory Open Access Journal |
| issn | 2468-2276 |
| language | English |
| last_indexed | 2024-12-14T20:18:57Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Scientific African |
| spelling | doaj.art-f9fdd206ec064d6ab2a31a6dfc2218b62022-12-21T22:48:47ZengElsevierScientific African2468-22762020-11-0110e00653Adsorption of selected metals from cassava processing wastewater using cow-bone ashR.A. Olaoye0O.D. Afolayan1K.A. Adeyemi2L.O. Ajisope3O.S. Adekunle4Civil Engineering Department, Ladoke Akintola University of Technology, Ogbomoso, NigeriaCorresponding author.; Civil Engineering Department, Covenant University Ota, NigeriaCivil Engineering Department, Ladoke Akintola University of Technology, Ogbomoso, NigeriaCivil Engineering Department, Ladoke Akintola University of Technology, Ogbomoso, NigeriaCivil Engineering Department, Ladoke Akintola University of Technology, Ogbomoso, NigeriaIn this study, the efficiency of cow-bone ash (CBA) as an adsorbent for the removal of metals from real-time cassava wastewater was examined. Wastewater was characterized using atomic absorption spectrophotometry (AAS). The adsorbent was characterized using X-ray Fluorescence (XRF), Scanning electron microscopy (SEM), and Fourier transform infrared FTIR. The effect of adsorbent dose, contact time, and agitation speed was investigated by a batch experiment performed in triplicate, and the removal efficiency of the ions calculated. Characterization of the cassava wastewater revealed that the concentration of Fe2+, Zn2+, Pb2+, and Mn2+were above the USEPA permissible limit. The adsorbent's characterization showed that it possesses crystalline nature, porous and rough surface, and the presence of CH, C = O, and CO functional groups. The optimum adsorbent dose was 0.02 g/100 mL for Fe2+ and Zn2+, and 0.04 g/100 mL for Mn2+ and Pb2 at an optimum contact time of 60 min and agitation speed of 150 rpm. The maximum metal removal efficiency obtained were 99%, 97%, 93% and 98% for Fe2+, Zn2+, Pb2+, and Mn2, respectively. Cow-bone ash offers efficient and cost-effective removal of Fe2+, Zn2+, Pb2+, and Mn2+from cassava wastewater.http://www.sciencedirect.com/science/article/pii/S2468227620303896AdsorptionCassava wastewaterCow-bone AshAdsorbentMetal |
| spellingShingle | R.A. Olaoye O.D. Afolayan K.A. Adeyemi L.O. Ajisope O.S. Adekunle Adsorption of selected metals from cassava processing wastewater using cow-bone ash Scientific African Adsorption Cassava wastewater Cow-bone Ash Adsorbent Metal |
| title | Adsorption of selected metals from cassava processing wastewater using cow-bone ash |
| title_full | Adsorption of selected metals from cassava processing wastewater using cow-bone ash |
| title_fullStr | Adsorption of selected metals from cassava processing wastewater using cow-bone ash |
| title_full_unstemmed | Adsorption of selected metals from cassava processing wastewater using cow-bone ash |
| title_short | Adsorption of selected metals from cassava processing wastewater using cow-bone ash |
| title_sort | adsorption of selected metals from cassava processing wastewater using cow bone ash |
| topic | Adsorption Cassava wastewater Cow-bone Ash Adsorbent Metal |
| url | http://www.sciencedirect.com/science/article/pii/S2468227620303896 |
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