Ecology, Environment and Conservation Paper

Vol 25, Sept Suppl. Issue, 2019; Page No.(125-131)

PRODUCTION OF BIO-BRIQUETTE FROM BIOCHAR DERIVED FROM PYROLYSIS OF CASHEW NUT WASTE

La Ifa, Setyawati Yania, Nurjannah Nurjannah, Zakir Sabara, Yuliana Yuliana, Heri Septya Kusuma and Mahfud Mahfud

Abstract

Bio-briquette has been successfully made from biochar by-products of the liquid smoke production from cashew nut wastes. The cashew nut wastes were first converted into biomass biochar using a Pyrolysis method. This biomass has a lower calorific value than the produced bio-briquettes thus the biomass calorific value can be increased by converting it to bio-briquettes. The purpose of this study was to assess the effect of particle size and adhesive concentration on the quality of bio-briquettes produced. The bio-briquette production was initiated by grinding and sieving the biomass biochar by using sieves of 70, 140 and 200 mesh. Proximate analysis (moisture content, ash content, volatile substance, fixed carbon), and calorific value were then carried out. After the optimum particle size was obtained, bio-briquettes were then produced using a tapioca flour adhesive at concentrations of 8%, 10% and 12% with the addition of hot water until homogeneity of the mixture was attained. The obtained bio-briquettes were then pressed at a pressure of 300 kg/cm2 and oven-dried for 4-6 h. The results showed that the best particle size for bio-briquettes production was obtained by using a 200 mesh, and the best adhesive concentration was 12% resulting in a bio-briquette compressive strength of 7.60 kg/cm2.

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