Table 9.2
Different methods for treating fruit and vegetable waste and their
final products
Treatment
method
Types of FVW
Pretreatment
Treatment
volume
Treatment
time
(days)
Final products
References
Anaerobic
digestion
Mixture of different fruits and
vegetables
Inoculation of pig manure
3550 kg
(wet basis)
174
Biogas (216 m
3
)
Scano et al.
(2014)
Anaerobic
digestion
FVW from
municipal central
supply
Drying at 60
C
Ground to a diameter smaller than 2 mm
ND
32
Biogas (CH
4 : 377
Æ 67 L/
kgVS )
Edwiges and
Frare (2017)
Anaerobic
digestion
FVW from
municipal market
Without any pretreatment for FVW, while
the digester was initially loaded with cow
rumen
108 kg/
day (wet
basis)
365
Biogas (CH
4 :
0.11–0.15 m
3
/kg
-VS )
Martí-Herrero
et al. (2019)
Composting
Vegetable waste
Mixed with hyacinth/garden prune/sawdust
Inoculation of cow dung
Adjusted C/N ratio
Chopped to a size of 1–2 cm
100 kg
30
Fertilizer (N increased by
14.83%)
Rich et al.
(2018)
Composting
Household food
waste
Mixed with air-dried and cut cornstalks
Mixed with mature compost as bulking
agent
ND
35
Fertilizer
Yang et al.
(2019)
Fermentation
(mesophilic
condition)
Mixture of different fruits and
vegetables
Ground or cut into small pieces of size
<5 cm
ND
8–14
Biogas (H
2 : 10.77–23.53
NmL/g
-VS )
Abubackar
et al. (2019a)
Fermentation
(thermophilic
condition)
Autoclaved at 120
C for 20 min
Inoculation of sludge from biogas plant
6.5 kg
(wet basis)
9–10
Biogas (H
2 : 20.81–27.19
NmL/g
-VS )
Abubackar
et al. (2019b)
Microbial fuel
cell (two
chambers)
Potato
Boiled and cut into small cubes (length of
5 mm)
Inoculation of anaerobic bacterial
consortia
2.5 g (wet
basis)
52
Electricity (highest current density:
160.1–253.9 mA/m
2
)
Du and Li
(2016)
FVW
fruit and vegetable waste, ND
no data
146
W. Li et al.
Different methods for treating fruit and vegetable waste and their
final products
Treatment
method
Types of FVW
Pretreatment
Treatment
volume
Treatment
time
(days)
Final products
References
Anaerobic
digestion
Mixture of different fruits and
vegetables
Inoculation of pig manure
3550 kg
(wet basis)
174
Biogas (216 m
3
)
Scano et al.
(2014)
Anaerobic
digestion
FVW from
municipal central
supply
Drying at 60
C
Ground to a diameter smaller than 2 mm
ND
32
Biogas (CH
4 : 377
Æ 67 L/
kgVS )
Edwiges and
Frare (2017)
Anaerobic
digestion
FVW from
municipal market
Without any pretreatment for FVW, while
the digester was initially loaded with cow
rumen
108 kg/
day (wet
basis)
365
Biogas (CH
4 :
0.11–0.15 m
3
/kg
-VS )
Martí-Herrero
et al. (2019)
Composting
Vegetable waste
Mixed with hyacinth/garden prune/sawdust
Inoculation of cow dung
Adjusted C/N ratio
Chopped to a size of 1–2 cm
100 kg
30
Fertilizer (N increased by
14.83%)
Rich et al.
(2018)
Composting
Household food
waste
Mixed with air-dried and cut cornstalks
Mixed with mature compost as bulking
agent
ND
35
Fertilizer
Yang et al.
(2019)
Fermentation
(mesophilic
condition)
Mixture of different fruits and
vegetables
Ground or cut into small pieces of size
<5 cm
ND
8–14
Biogas (H
2 : 10.77–23.53
NmL/g
-VS )
Abubackar
et al. (2019a)
Fermentation
(thermophilic
condition)
Autoclaved at 120
C for 20 min
Inoculation of sludge from biogas plant
6.5 kg
(wet basis)
9–10
Biogas (H
2 : 20.81–27.19
NmL/g
-VS )
Abubackar
et al. (2019b)
Microbial fuel
cell (two
chambers)
Potato
Boiled and cut into small cubes (length of
5 mm)
Inoculation of anaerobic bacterial
consortia
2.5 g (wet
basis)
52
Electricity (highest current density:
160.1–253.9 mA/m
2
)
Du and Li
(2016)
FVW
fruit and vegetable waste, ND
no data
146
W. Li et al.