Paper Title :Utilisation of Chemically Activated Maize Tassel For Remediation of Eutrophic Phosphorus
Author :Nana M. Agyei, Adebayo M. Shofolahan, Jonathan O. Okonkwo
Article Citation :Nana M. Agyei ,Adebayo M. Shofolahan ,Jonathan O. Okonkwo ,
(2016 ) " Utilisation of Chemically Activated Maize Tassel For Remediation of Eutrophic Phosphorus " ,
International Journal of Advances in Science, Engineering and Technology(IJASEAT) ,
pp. 15-17,
Volume-4,Issue-4, Spl. Iss-2
Abstract : Chemical precipitation with lime, the technology of choice for phosphate removal from contaminated waters, is
expensive. In this study the feasibility of utilizing low-cost chemically activated maize tassel for the adsorptive removal of
phosphate was assessed. H3PO4 was added to maize tassel powder in the impregnation ratio 2:1(w/w H3PO4: tassel) and
activated at 600°C under an inert atmosphere of N2. The activated product was characterized by BET. Activation resulted in
an increase in specific surface area from SBET 2.54 to 803.8 m2/g. Batch experiments were performed to study the removal of
phosphate from simulated samples; the optimal parameters were found to be: contact time of 90 min, pH 7 and adsorbent
dosage of 1.5 g per 100 mL solution. The adsorption data were fitted to the Langmuir isotherm model (R2 > 0.99), yielding
an estimated adsorption capacity of 15.41 mg PO4
3- (as P) per g adsorbent. The activated product was successfully applied
for the remediation of phosphate in selected sewage samples.
Keywords- Maize tassel, chemical activation, eutrophication, phosphate removal.
Type : Research paper
Published : Volume-4,Issue-4, Spl. Iss-2
DOIONLINE NO - IJASEAT-IRAJ-DOIONLINE-6577
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