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- Title
Tanzania Sisal Industry: Auditing and Characterization of Sisal Post-Harvest Wastes as a Bio-Resource for Bio-Refining.
- Authors
Mshandete, Anthony Manoni; Kibazohi, Oscar; Kivaisi, Amelia Kajumulo
- Abstract
A waste audit case study was conducted for sisal post-harvest waste (SPHW) generated at Fatemi sisal estates in Tanzania to evaluate its potential for use as substrate for mushroom cultivation and biogas production by integrating quantitative with qualitative methods and laboratory analysis. Annual generation of fresh sisal boles waste (SBW) and remnant leaf stubs (RLS) per hectare was estimated at 22 and 44.5 tons, respectively. The chemical compositions of SBW and RLS as well as the leachate extracted from the fractions were established. Regardless of the fraction analyzed, contents of volatile solids, total carbon, total organic matter were in the ranges of 93-98%, 49-55% and 91-98% on dry weight basis, respectively. Total sugar contents of the solid and liquid fractions ranged between 8-27% and 30-35 mg/l, respectively. The chemical oxygen demand (COD) content of the SBW and RLS fractions were between 20 and 26 gO2/l, respectively. The high values of organics contained in the SPHW fractions is indicative of its potential as feedstock for a biorefinery that produces food (mushroom), feed, biofuels (biogas, bioethanol), biochemicals and other bioproducts. On the basis of the established characteristics, an innovative approach for the utilization of the waste is proposed.
- Subjects
TANZANIA; SISAL (Plant); METHANE; BIOMASS energy; MUSHROOMS
- Publication
International Journal of Pure & Applied Sciences & Technology, 2013, Vol 14, Issue 2, p84
- ISSN
2229-6107
- Publication type
Article