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Träfflista för sökning "WFRF:(Björnsson Lovisa) srt2:(2005-2009);pers:(Rubindamayugi M.)"

Sökning: WFRF:(Björnsson Lovisa) > (2005-2009) > Rubindamayugi M.

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1.
  • Mshandete, Anthony, et al. (författare)
  • Effect of particle size on biogas yield from sisal fibre waste
  • 2006
  • Ingår i: Renewable Energy. - : Elsevier BV. - 0960-1481. ; 31:14, s. 2385-2392
  • Tidskriftsartikel (refereegranskat)abstract
    • The degradation and biogas production potential of sisal fibre waste could be significantly increased by pre-treatment for reduction of particle size. Batch-wise anaerobic digestion of sisal fibre waste was carried out in 1-l digesters with fibre sizes ranging from 2 to 100 mm, at an ambient temperature of 33 °C. Sediment from a stabilisation pond at a sisal production plant was used as starter seed. Total fibre degradation increased from 31% to 70% for the 2 mm fibres, compared to untreated sisal fibres. Furthermore, the results confirmed that methane yield was inversely proportional to particle size. Methane yield increased by 23% when the fibres were cut to 2 mm size and was 0.22 m3 CH4/kg volatile solids, compared to 0.18 m3 CH4/kg volatile solids for untreated fibres. By anaerobic digestion and biogas production, the 148,000 tonne of waste sisal fibres generated annually in Tanzania could yield 22 million m3 of methane, and an additional 5 million m3 of methane if pre-treatment by size reduction to 2 mm was applied.
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2.
  • Mshandete, Anthony, et al. (författare)
  • Performance of a sisal fibre fixed-bed anaerobic digester for biogas production from sisal pulp waste
  • 2005
  • Ingår i: Tanzania Journal of Science. - : African Journals Online (AJOL). - 0856-1761. ; 31:2, s. 41-52
  • Tidskriftsartikel (refereegranskat)abstract
    • A single stage anaerobic digester employing a sisal fibre waste fixed bed was studied for biogas production from sisal pulp waste. The fibre was colonized by microorganisms involved in biogas production. The sisal pulp waste to be digested was fed from the top and was sprinkled intermittently with recirculating leachate from the material. Organic loading rates of 0.1-10 kg volatile solids (VS) m-3d-1 could be applied and methane yields in the range of 0.13-0.48 m3 CH4 kg-1 VS added were obtained. The average methane content in the biogas produced from sisal pulp waste was 55%, and the biogas production rate was 0.15-0.54 m3m-3d-1. The methane yield obtained and the highest organic loading rate that could be sustained by this simple, fixed-bed digester are indications of an attractive system in terms of performance and reliability. It is concluded that the sisal fibre waste fixed bed is a promising carrier for microbes and can be employed for long-term operation without changing the bed.
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Mattiasson, Bo (2)
Björnsson, Lovisa (2)
Mshandete, Anthony (2)
Rubindamayugi, M... (1)Ta bort avgränsningen
Kivaisi, A. (1)
Kivaisi, Amelia K. (1)
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