Carbon-nitrogen ratio and nutrient composition average value of biogas fermentation raw material reference table (%)
No.
Fecal name
Moisture
Organic matter
C:N
N
P
K
Ca
Mg
S
1
Horse dung
76
twenty one
13:1
0.44
0.32
0.35
0.21
0.14
0.01
2
Pig manure
80.5
12.5
7:1
0.73
0.27
0.08
0.08
0.08
0.07
3
Cow dung
83.5
14.6
24:1
0.25
0.15
0.05
0.31
0.11
0.05
4
Sheep droppings
64.6
30.5
12:1
0.6
0.45
0.25
0.33
0.18
0.24
5
People
81.5
16
5:1
0.8
0.4
0.3
(relatively high chlorine content)
6
Rabbit droppings
72.4
15
14:1
0.63
0.3
7
Chicken droppings
50.5
25.5
6:1
1.63
1.54
0.85