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Biogas systems for sisal and other agro-industrial residues

Abstract

Most of the East-African agro-industries are generating very large quantities of organic residues from production and processing of different crops. In the East-African Region the most important of these crops are: Sisal, Sugar, Coffee, Cashew nuts and Pineapple. In other 3. world countries, Palm oil and Cassava (Tapioca starch) processing are main producers of organic waste products. Moreover, large quantities of organic residues are generated from other food processing activities like breweries, consumption of bananas etc. The following pages give examples of setups and system designs of anaerobic treatment systems for some of the residues mentioned above. When considering anaerobic treatment of sisal residues, which constitutes the main agro-industrial biomass resource in Tanzania, two major issues should be considered: Optimal reactor set-up and performance; And optionally, potential methods for pre-treatment of fibre fraction in order to increase the methane yield. The sisal liquid residues are degraded very fast and efficiently in UASB systems. At COD loading rates less than 11 kg COD/m{sup 3} x day, the reduction in organic matter is more than 90% and methane yields obtained are between 373 and 377 ml CH{sub 4}/g COD reduced. The treatment of sisal solid residues in CSTR systems has been examined  More>>
Authors:
Jungersen, G [1] 
  1. Danish Technological Inst., Section for Biotechnology, Taastrup (Denmark)
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
NEI-DK-3231; CONF-9709274-
Reference Number:
SCA: 090900; PA: DK-98:001553; EDB-98:092586; SN: 98001995593
Resource Relation:
Conference: Seminar on biogas - bioenergy potential in East Africa, Dar es Salaam (Tanzania, United Republic of), 22-23 Sep 1997; Other Information: DN: EFP-94; PBD: 1997; Related Information: Is Part Of Biogas - Bioenergy potential in East Africa; PB: 101 p.
Subject:
09 BIOMASS FUELS; AGRICULTURAL WASTES; FIBERS; TANZANIA; ANAEROBIC DIGESTION; METHANE; FOOD INDUSTRY; YIELDS; CROPS; TECHNOLOGY TRANSFER; CACTI
OSTI ID:
643287
Research Organizations:
Dansk Teknologisk Inst., Taastrup (Denmark); University of Dar es Salaam, Dar es Salaam (Tanzania, United Republic of). Applied Microbiology Unit
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE98773763; CNN: Contract ENS-1383/94-0012; TRN: DK9801553
Availability:
INIS; OSTI as DE98773763
Submitting Site:
DK
Size:
pp. 77-99
Announcement Date:

Citation Formats

Jungersen, G. Biogas systems for sisal and other agro-industrial residues. Denmark: N. p., 1997. Web.
Jungersen, G. Biogas systems for sisal and other agro-industrial residues. Denmark.
Jungersen, G. 1997. "Biogas systems for sisal and other agro-industrial residues." Denmark.
@misc{etde_643287,
title = {Biogas systems for sisal and other agro-industrial residues}
author = {Jungersen, G}
abstractNote = {Most of the East-African agro-industries are generating very large quantities of organic residues from production and processing of different crops. In the East-African Region the most important of these crops are: Sisal, Sugar, Coffee, Cashew nuts and Pineapple. In other 3. world countries, Palm oil and Cassava (Tapioca starch) processing are main producers of organic waste products. Moreover, large quantities of organic residues are generated from other food processing activities like breweries, consumption of bananas etc. The following pages give examples of setups and system designs of anaerobic treatment systems for some of the residues mentioned above. When considering anaerobic treatment of sisal residues, which constitutes the main agro-industrial biomass resource in Tanzania, two major issues should be considered: Optimal reactor set-up and performance; And optionally, potential methods for pre-treatment of fibre fraction in order to increase the methane yield. The sisal liquid residues are degraded very fast and efficiently in UASB systems. At COD loading rates less than 11 kg COD/m{sup 3} x day, the reduction in organic matter is more than 90% and methane yields obtained are between 373 and 377 ml CH{sub 4}/g COD reduced. The treatment of sisal solid residues in CSTR systems has been examined both at mesophilic (37 deg. C) and thermophilic temperatures (55 deg. C.). (EG)}
place = {Denmark}
year = {1997}
month = {Dec}
}