The possibility of treating vegetable tannery industry primary sludge (VTPS) through anaerobic digestion was investigated. The process efficiency in two reactors (R1 and R2) was compared with the aim of evaluating microbial community adaptation towards the inhibiting character of the matrix. R1 was fed with a mixture of conventional domestic primary sludge (CDPS) and an increasing amount of VTPS and R2 with CDPS only as control. The slow adaption allowed to achieve similar results in R1 and R2: VSS reduction varied from 24 to 30% and the specific biogas production was, in average, 1.0 Nm3/kgVSS and 0.7 Nm3/kgVSS for R1 and R2, respectively.
Anaerobic digestion of vegetable tannery and municipal sludge / F.Giaccherini; A.Mannucci; G.Munz; G.Mori; F.Alatriste-Mondragon; C.Lubello. - ELETTRONICO. - (2014), pp. 1-7. (Intervento presentato al convegno XI Latinoamerican Symposium of Anaerobic Digestion tenutosi a La Habana nel 23-27 Novembre 2014).
Anaerobic digestion of vegetable tannery and municipal sludge
GIACCHERINI, FRANCESCA;MANNUCCI, ALBERTO;MUNZ, GIULIO;LUBELLO, CLAUDIO
2014
Abstract
The possibility of treating vegetable tannery industry primary sludge (VTPS) through anaerobic digestion was investigated. The process efficiency in two reactors (R1 and R2) was compared with the aim of evaluating microbial community adaptation towards the inhibiting character of the matrix. R1 was fed with a mixture of conventional domestic primary sludge (CDPS) and an increasing amount of VTPS and R2 with CDPS only as control. The slow adaption allowed to achieve similar results in R1 and R2: VSS reduction varied from 24 to 30% and the specific biogas production was, in average, 1.0 Nm3/kgVSS and 0.7 Nm3/kgVSS for R1 and R2, respectively.
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