By Ulrich Stohr, Uli Werner
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Additional resources for Biogas Plants in Animal Husbandry: A Practical Guide
5. Miscellaneous consumers Gas demand ............. ... Anticipated increasein consumption (%) ............... Total biogasdemand 1St-priority consumers 2nd-priority consumers 3rd-priority consumers ............... ............... 37 The following alternative modes of calculation are useful; Determining biogas demand on the basis of present consumption . g. for ascertaining the cooking-energy demand. This involves either measuring or inquiring as to the present rate of energy consumption in the form of wood/charcoal, kerosene and/or bottled gas.
Well-digested slurry is practically oderless and does not attract flies. - Anaerobic digestion kills off or at least deactivates pathogens and worm ova, though the effect cannot necessarily be referred to as hygienization (cf. 8). 0 lo-‘-lo-2 7 5 9 7 10 36 21 percent of the ova and pathogens accumulate in the scum and sediment. Plant seeds normally remain more or less unaffected. om)ared to the source material, digested slurry has a finer, more homogeneous structure, which makes it easier to spread.
G. for ascertaining the cooking-energy demand. This involves either measuring or inquiring as to the present rate of energy consumption in the form of wood/charcoal, kerosene and/or bottled gas. g. biogas consumption per person and meal, -- reference data taken from pertinent literature (cf. 5), although this approach involves considerable uncertainty, since cooking-energy consumption depends on local culture-dependent cooking and eating habits and can therefore differ sub,stantiaIly from case to case.
Biogas Plants in Animal Husbandry: A Practical Guide by Ulrich Stohr, Uli Werner