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Removal of Lead from Groundwater of Veppanthattai block, Perambalur district, Tamil Nadu, India using Sugarcane Bagasse as Adsorbent

100%
Ibraheem A. M., Nazeeb Khan S. M. M.
World News of Natural Sciences
|
2018
|
vol. 18
|
issue 2
213-222
EN
The present work measures the adsorption capacity of sugarcane bagasse to remove excess lead from groundwater. Batch adsorption experiments were carried out to evaluate the adsorption equilibrium, and the effects of four parameters (pH, adsorbent dosage, equilibrium time and particle size) on the adsorption of lead were investigated. Characterization of the adsorbent was carried out through SEM and FTIR instruments. Results confirm that the adsorption of lead takes place successfully on the surface of the adsorbent. The maximum efficiency of adsorption is up to 50% achieved in 5g adsorbent dosage, at an optimum pH 5, with a contact time of 120 minutes and 53 μm adsorbent size at 38.
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Removal of methylene blue from aqueous solution by adsorption onto activated carbon prepared from animal bone and corncob – an agricultural waste

75%
Ezeugo J. N. O.
World News of Natural Sciences
|
2018
|
vol. 19
32-44
EN
Synthetic dyes are widely used in the rubber, textiles, plastics, paper and cosmetics industries to color their products. The effectiveness of adsorption for dye removal from wastewater has made it an ideal alternative to other expensive treatment methods. This study investigates the physicochemical properties of animal-bone- (AB) and corncob- (CC) derived activated carbon on the removal of methylene blue dye. The effects of condition variables such as initial dye concentration, adsorbent dose, pH and contact time were studied. The results show that animal-bone-derived activated carbon has better potential for dye removal than does the corn cob-derived equivalent. AB revealed a higher adsorption capacity of intensity (2.40) and is of higher surface area - 500 m2g–1, while CC has adsorptive capacity of 1.25, intensity of 2.80 and surface area of 420 m2/g–1. What is more, the removal efficiency increases as adsorbent dose increases. This makes it an interesting option for dye removal from aqueous solutions of dye.
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