BIOLOGICAL PROCESSING OF WASTES

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Presentation transcript:

BIOLOGICAL PROCESSING OF WASTES F.STRAKA FUEL RESEARCH INSTITUTE BIOLOGICAL PROCESSING OF WASTES

Vznik bioplynu z biologicky rozložitelných odpadů Production of biogas from biologically degradable wastes

Skupinové složení biomas (organická bezpopelná hmota) MASO/MASOKOSTNÍ MOUČKA PROTEINY LIPIDY ČOČKA SACHARIDY SLÁMA SACHARIDY LIGNIN DŘEVO SACHARIDY LIGNIN

structure of plant fiber hemicellulose section filled up with lignin cellulose fibers (fibrils)

lignin molecule * structure units with two alternative arrangements * * structure units with three alternative arrangements

Different types of reactor vessels

Different types of mixing of anaerobic reactors

biogas station, 1974, two mesophylic reactors in serie

biogas station, 2008

Fermenter „circle in circle“

MIXING MIXING

ANAEROBIC TREATMENT OF NITROGEN CONTAINING WASTES FRANTISEK STRAKA, MARCELA KUNCAROVA Fuel Research Institute, Praha , Czech Republic JANA ZABRANSKA, MICHAL DOHANYOS, PAVEL JENICEK Institute of Chemical Technology, Department of Water Technology and Environmental Engineering, Praha, Czech Republic

Group composition MBM (high ash)

Chemical composition MBM (low ash)

Anaerobic Fermentation & Toxic Influences of Free Ammonia organic nitrogen cleavage - NH – CO - NH4+ + OH- NH3 + H2O

Equilibrium diagram of NH4+/NH3 concentrations for 0.1 M solution

Pilot test results of anaerobic digestion of protein rich biomass (mesophil. cond)

Influences of pH-value on cumulative biogas production High BOD loaded water after 500 hours; 1.7 g NNH4 per liter,; laboratory digester units operated at mesophilic and/or thermophilic conditions.