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

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

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

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

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

6. Different types of reactor vessels

7. Different types of mixing of anaerobic reactors

9. biogas station, 1974, two mesophylic reactors in serie

10. biogas station, 2008

11. Fermenter „circle in circle“

15. MIXING
MIXING

17. 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

18. Group composition MBM (high ash)

19. Chemical composition MBM (low ash)

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

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

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

23. 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.