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N. Bolong and I. Saad
Table 2 Compost preparation and experimental design setup
Compost ID Bin volume
(m 3 )
Mass of
waste (kg)
Amount of
worm used
(kg)
Type of
compost
Bedding
material
C-1
0.05
2.5
0
Windrow
(open-air
system)
Shredded
paper and
dark soil
(≈0.02 m
depth)
V-1
0.05
2.5
0.25
Vermicompost
(red worm)
Shredded
paper and
dark soil
(≈0.02 m
depth)
V-2
0.05
2.5
0.25
Vermicompost
(red worm)
with added
burnt palm
oil shell
(BOPS)
Shredded
paper and
dark soil and
BOPS
(≈0.02 m
depth)
V-R
0.05
4
0.2
Vermicompost
(red
worm)—for
fruits and
vegetable
waste
Shredded
paper, dry
leaves and
damp soil
(≈0.05 m
depth)
V-B
0.05
4
0.2
Vermicompost
(blue
worm)—for
fruits and
vegetable
waste
Shredded
paper, dry
leaves and
damp soil
(≈0.05 m
depth)
Fig. 3 Illustration for a Open-air system (windrow compost pile) and b Vermicompost experimental setup