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Technical and economic feasibility of gradual concentric chambers reactor for sewage treatment in developing countries Electron. J. Biotechnol.
Mendoza,Lourdes; Carballa,Marta; Sitorus,Berlian; Pieters,Jan; Verstraete,Willy.
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%; 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% and 75% 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....
Tipo: Journal article Palavras-chave: Developing countries; Mesophilic; Nutrients removal; Reactor design; Sewage.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200007
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