Comparative Study of the Physicochemical and Structural Characteristics of Lipton and Green Tea Wastes as Low Cost Adsorbent Using HNo3 As Activating Agent
- September 18, 2020
- Posted by: RSIS Team
- Categories: Agriculture, IJRIAS
International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume V, Issue III, January 2020 | ISSN 2454–6186
Evbuomwan B.O and Boyle S .K
Department of Chemical Engineering, University of Port Harcourt, Port Harcourt, Nigeria
Abstract: – The comparative study of the physiochemical and structural characteristics of green and lipton tea wastes as low cost adsorbents using nitric acid had been studied. . The two tea waste samples were carbonized at 160oC for one hour 10 mins. The properties evaluated were surface area, moisture content, pH, bulk density, pore volume, porosity, tortuocity, ash content, metal ions present. One way analysis of variance was done to known the level of significance.
The results obtained from the analysis for green and lipton tea were surface area, (839m2/g) and (711m2/g), ash content, (57%) and (49.56%), moisture content, (38.53%) and (40.76%), pH, (6.0) and(6.0), bulk density, (0.303g/cm3) and (0.312g/cm3), porosity, (0.594) and (0.585), pore volume, (6.3) and (7.71), tortucity, (1.68) and (1.71) respectively. This study showed that green tea waste has better adsorptive capacity than lipton tea waste with a larger surface area, porosity, and ash content.
The following heavy metals where tested for Lead (1.13576), Magnesium (0.62114) for green tea waste and Lead (0.82043), Magnesium (0.51931) for lipton tea using an electro-photo spectrometer. With these results, it was observed that the heavy metal content were insignificant in the adsorbents and they are good for such metal adsorption from waste water.
Keywords: Green tea, Lipton tea, physicochemical, Heavy metal, Adsorbent, and Activating agent
