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Table 1 Annual bio-waste production and its available potential for a village energy system

From: Alternative energy supply system to a rural village in Ethiopia

Feedstock

Resources of the village

Annual yield

Produced bio-wastes (t)

Availability coefficients

Available bio-waste(t)

Cows dung

100 cows

0.7 t/cow

73

0.4

30

Human feces

150 persons

0.05 t/capita

7.5

0.8

6

Human urine

150 persons

0.5 m3/capita

75 m3

0.8

60 m3 (3 t)

Crop residues

23 ha

3 t/ha

69

0.3

22

Total

 

61

  1. 1 m3of urine = 1 t corresponding to 50 kg of dry biomass (5%)