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Anaerobic biodegradability of dairy wastewater pretreated with porcine pancreas lipase BABT
Mendes,Adriano Aguiar; Pereira,Ernandes Benedito; Furigo Jr.,Agenor; Castro,Heizir Ferreira de.
Lipids-rich wastewater was partial hydrolyzed with porcine pancreas lipase and the efficiency of the enzymatic pretreatment was verified by the comparative biodegradability tests (crude and treated wastewater). Alternatively, simultaneous run was carried out in which hydrolysis and digestion was performed in the same reactor. Wastewater from dairy industries and low cost lipase preparation at two concentrations (0.05 and 0.5% w.v-1) were used. All the samples pretreated with enzyme showed a positive effect on organic matter removal (Chemical Oxygen Demand-COD) and formation of methane. The best results were obtained when hydrolysis and biodegradation were performed simultaneously, attaining high COD and color removal independent of the lipase...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradability; Hydrolysis; Lipases; Lipids-rich wastewater and biogas.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000600003
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