*
0
100
200
300
400
500
600
Substrate
Bed
Lettuce
Lettuce + EAS
(c)
0
100
200
300
400
500
600
Substrate
Bed
EAS
(f)
*
0
100
200
300
400
500
600
Substrate
Bed
Potato
Potato + EAS
(e)
*
0
100
200
300
400
500
600
Substrate
Bed
Carrot
Carrot + EAS
(d)
*
0
100
200
300
400
500
600
Substrate
Bed
Cabbage
Cabbage + EAS
*
0
100
200
300
400
500
600
Substrate
Bed
Banana peels
Banana peels + EAS
(a)
(b)
Total carbon (g/kg)
Fig. 9.2
Total carbon in substrate and bed compartments after vermicomposting of FVW and FVW + EAS: (a) banana peels; (b) cabbage; (c) lettuce; (d) carrot;
(e) potato; (f) EAS. Data are presented as mean and standard deviation, n
¼ 3. The asterisk (Ã) denotes the difference between vermicomposting of FVW and
FVW + EAS is statistically significant at 0.05 level (Statistics 21 software). FVW
fruit and vegetable waste, EAS
excess activated sludge
154
W. Li et al.