Quiz 6: Composting and Disposal
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1. Which products produces a biogas plant? *
6 points
Methane
Liquid manure
Nutrient-rich manure
Farm manure
Compost
Engery and heat
Options
2. Which substrates are suitable for a biogas plant? *
3 points
Plants (corn, silage)
Agricultural residues (like liquid manure, dung, green waste)
Residues and waste from the food industry (like fats, residues of alcoholic production, biowaste)
Options
3. Which possibilities of processing fermentation residues must take place? *
3 points
Separation of liquid and solid components by separators
Thickening, removal of water
Mixing with structural substrate
Heating
Options
4. What properties must liquid fermentation residues fulfil? *
2 points
Odourless
Nutrient-rich
Nutrient-less
Viscous
Less viscous
Options
5. Which 3 temperature-dependent phases are differentiated in composting?
3 points
Degradation phase
Conversion phase (cooling)
Construction phase (isothermal)
Hydrolysis
Options
6.  Until which temperature the degradation phase takes place? *
1 point
7. Which emissions are produced during composting?
4 points
Heat
CO2
Water
Ammonia (CH4)
Energy
Options
8. Which resources aerobic microorganism require during composting? *
2 points
Water
O2 (Oxygen)
CO2 (Carbon Dioxide)
Options
9.  Which resources anaerobic microorganism require during composting? *
1 point
Water
O2 (Oxygen)
CO2 (Carbon dioxide)
Option
10. Which resources are poisonous for anaerobic microorganism? *
1 point
Water
O2 (Oxygen)
Option
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