Artículos de revistas
PHYSICO-CHEMICAL EVALUATION OF AN EFFLUENT TREATED IN ANAEROBIC BIODIGESTER REGARDING ITS EFFICIENCE AND APPLICATION AS FERTILIZER
Date
2012Registration in:
QUIMICA NOVA, SAO PAULO, v. 35, n. 1, supl., Part 1-2, pp. 35-40, JUL-SEP, 2012
0100-4042
10.1590/S0100-40422012000100007
Author
Lopes da Silva, Wilson Tadeu
de Novaes, Antonio Pereira
Kuroki, Vivian
de Almeida Martelli, Lilian Fernanda
Magnoni Junior, Lourenco
Institutions
Abstract
PHYSICO-CHEMICAL EVALUATION OF AN EFFLUENT TREATED IN ANAEROBIC BIODIGESTER REGARDING ITS EFFICIENCE AND APPLICATION AS FERTILIZER. The use of biodigester for basic and environmental sanitation has large demand in Brazil. A biodigester was built to treat conjunctly the human and pig feces and urine, regarding to its future application in rural small towns. The results show that the biodigester can reduce 90% of COD and BOD and, up to 99.99% of thermotolerant coliforms. The treated effluent has variable quantities of macro- and micro-nutrients; and organic matter. However, the concentration variability of the nutrients makes difficult a dosed application into soil. The soluble salts (mainly as Na+ form) make necessary a controlled use to avoid environmental degradation.