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ACTIVATED CARBON BASED CANARIUM SCHEWEINFURTHII SHELLS FOR THE REMOVALOF NITRATE IONS FROM AQUEOUS SOLUTION

Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.6, No. 7)

Publication Date:

Authors : ; ; ; ; ; ; ; ;

Page : 805-815

Keywords : Canarium schweinfurthii shells; Chemical activation; Activated carbon; Pyrolysis; Adsorption and Nitrates ions.;

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Abstract

The activated carbons preparation conditions from canarium scheweinfurthii shells were investigated. The two most influenced factors: the H3PO4 concentration (30 to 60 %), and the activation temperature (300 to 700°C) were studied at constant impregnation ratio of 1/1. The analysis of experimental data showed that, the optimum preparation conditions were achieved for an activation temperature of 700°C and H3PO4 concentration of 30 %. Prior to the preparation, the proximate analysis of the precursor gave, 32.70 %, 2.10 %, 63.34 % and 1.86 % for the fixed carbon, moisture, volatile matter and ash contents respectively. The iodine number was found to be 436.8mg/g and the BET surface area of 397.5 m2/g. According to the batch adsorption study, the maximum quantity of nitrate ions adsorbed was 7.40 mg/g at the following reaction conditions: 0.05 g of adsorbent, 10 mg/L of adsorbate concentration, pH of 2 and 40 minutes of contact time.

Last modified: 2017-07-31 20:18:57