Preparation and Use of Activated Carbon from Periwinkle Shell for Water Treatment in Nkanu East Local Government Area of Enugu State, Nigeria (Published)
Activated carbon is normally produced from various carbonaceous materials of both plant and animal origin. This work was focused on the preparation of activated carbon from periwinkle shells gotten from kenyetta market in Enugu, and its use as an adsorbent for water treatment in Nkanu East Local Government Area of Enugu State. The activated carbon, (AC) is prepared by acid activation method at temperature of 6000C. The effects of carbonization and acid impregnation time on the adsorption potential of the activated carbons on adsorption of nickel and lead from inyaba river water in Amagunze, in Nkanu East L.G.A, was examined. The results show that the concentrations of nickel and lead before purification are 1.86mg/l and 0.08 mg/l respectively. After purification, lead was not detected in any of the samples while the concentrations of nickel reduced from 1.86 mg/l to 0.30 mg/l. Thus, this study showed that activated carbon produced from periwinkle shell is suitable for the adsorption of Ni+2 and Pb+2 ions and as such could be used as a costeffective and locally accessed adsorbent in the treatment of contaminated river water.
Keywords: Activated carbon, Heavy Metals, Periwinkle Shell, preparation, water treatment
REMOVAL OF SYNTHETIC DYE ACID RED 186 FROM WATER BY ACTIVATED CARBON (Published)
The adsorption of acid red 186(AR) onto activated carbon prepared from Libyan farms was studied, the effect of solution pH, contact time, adsorption dose and initial dye concentration was evaluated. The adsorption studied included Langmuir and Freundlish isotherms were applied to experimental results. The experimental results fitted very well to both adsorption isotherms. The mixture mono layer capacity obtained from Langmuir is q_e =7.62mg/g for activated carbon (100-45um) and q_e=7.194mg/g for activated carbon (lees than 45um).Therefore, activated carbon has the potential to be used as a low cost eco-friendly adsorbent for removal “activated carbon” dye from aqueous solution.
Keywords: Acidred186 dye, Activated carbon, Adsorption, Isotherms