Technical and economic feasibility of gradual concentric chambers reactor for sewage treatment in developing countries
Electron. j. biotechnol
;
12(2): 7-8, Apr. 2009. ilus, tab
Article
in English
| LILACS
| ID: lil-551368
ABSTRACT
A major challenge in developing countries concerning domestic wastewaters is to decrease their treatment costs. In the present study, a new cost-effective reactor called gradual concentric chambers (GCC) was designed and evaluated at lab-scale. The effluent quality of the GCC reactor was compared with that of an upflow anaerobic sludge bed (UASB) reactor. Both reactors showed organic matter removal efficiencies of 90 percent; however, the elimination of nitrogen was higher in the GCC reactor. The amount of biogas recovered in the GCC and the UASB systems was 50 percent and 75 percent of the theoretical amount expected, respectively, and both reactors showed a slightly higher methane production when the feed was supplemented with an additive based on vitamins and minerals. Overall, the economical analysis, the simplicity of design and the performance results revealed that the GCC technology can be of particular interest for sewage treatment in developing countries.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Water Purification
/
Coliforms
Type of study:
Health economic evaluation
Language:
English
Journal:
Electron. j. biotechnol
Journal subject:
Biotechnology
Year:
2009
Type:
Article
Affiliation country:
Belgium
Institution/Affiliation country:
Ghent University/BE
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