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Biogas production from UASB and polyurethane carrier reactors treating sisal processing wastewater

Abstract

The fundamental benefits which makes anaerobic digestion technology (ADT) attractive to the poor developing include the low cost and energy production potential of the technology. In this study the potential of using UASB reactor and Polyurethane Carrier Reactor (PCR) as pollution control and energy recovery systems from sisal wastewater were investigated in lab-scale reactors. The PCR demonstrated the shortest startup period, whereas the UASB reactor showed the highest COD removal efficiency 79%, biogas production rate (4.5 l biogas/l/day) and process stability than the PCR under similar HRT of 15 hours and OLR of 8.2 g COD/l/day. Both reactor systems became overloaded at HRT of 6 hours and OLR of 15.7 g COD/l/day, biogas production ceased and reactors acidified to pH levels which are inhibiting to methanogenesis. Based on the combined results on reactor performances, the UASB reactor is recommended as the best reactor for high biogas production and treatment efficiency. It was estimated that a large-scale UASB reactor can be designed under the same loading conditions to produce 2.8 m{sup 3} biogas form 1 m{sup 3} of wastewater of 5.16 kg COD/m{sup 3}. Wastewater from one decortication shift can produce 9,446 m{sup 3} og biogas. The energy equivalent of such  More>>
Authors:
Rubindamayugi, M S.T.; Salakana, L K.P. [1] 
  1. Univ. of Dar es Salaam, Faculty of Science, Applied Microbiology Unit (Tanzania, United Republic of)
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
NEI-DK-3231; CONF-9709274-
Reference Number:
SCA: 090900; PA: DK-98:001548; EDB-98:092599; SN: 98001995588
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; WASTE WATER; WASTE PROCESSING PLANTS; METHANE; FIBERS; BIOREACTORS; ANAEROBIC DIGESTION; EFFICIENCY; AGRICULTURAL WASTES; CACTI; TANZANIA
OSTI ID:
643283
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: DK9801548
Availability:
INIS; OSTI as DE98773763
Submitting Site:
DK
Size:
pp. 29-38
Announcement Date:

Citation Formats

Rubindamayugi, M S.T., and Salakana, L K.P. Biogas production from UASB and polyurethane carrier reactors treating sisal processing wastewater. Denmark: N. p., 1997. Web.
Rubindamayugi, M S.T., & Salakana, L K.P. Biogas production from UASB and polyurethane carrier reactors treating sisal processing wastewater. Denmark.
Rubindamayugi, M S.T., and Salakana, L K.P. 1997. "Biogas production from UASB and polyurethane carrier reactors treating sisal processing wastewater." Denmark.
@misc{etde_643283,
title = {Biogas production from UASB and polyurethane carrier reactors treating sisal processing wastewater}
author = {Rubindamayugi, M S.T., and Salakana, L K.P.}
abstractNote = {The fundamental benefits which makes anaerobic digestion technology (ADT) attractive to the poor developing include the low cost and energy production potential of the technology. In this study the potential of using UASB reactor and Polyurethane Carrier Reactor (PCR) as pollution control and energy recovery systems from sisal wastewater were investigated in lab-scale reactors. The PCR demonstrated the shortest startup period, whereas the UASB reactor showed the highest COD removal efficiency 79%, biogas production rate (4.5 l biogas/l/day) and process stability than the PCR under similar HRT of 15 hours and OLR of 8.2 g COD/l/day. Both reactor systems became overloaded at HRT of 6 hours and OLR of 15.7 g COD/l/day, biogas production ceased and reactors acidified to pH levels which are inhibiting to methanogenesis. Based on the combined results on reactor performances, the UASB reactor is recommended as the best reactor for high biogas production and treatment efficiency. It was estimated that a large-scale UASB reactor can be designed under the same loading conditions to produce 2.8 m{sup 3} biogas form 1 m{sup 3} of wastewater of 5.16 kg COD/m{sup 3}. Wastewater from one decortication shift can produce 9,446 m{sup 3} og biogas. The energy equivalent of such fuel energy is indicated. (au)}
place = {Denmark}
year = {1997}
month = {Dec}
}