96
3 Bio-augmented Composting of Organic Wastes in Villages and Towns
(a) The composition of organic carbon of compost
(b) Comparation of quality of compost and domestic standards for organic fertilizer
Fig. 3.16 The utilizability of compost products
3.4.2.3 Evaluation of Composting Effect
According to the evaluation index and standard of composting effect shown in Table
2.8, each treatment was subjected to weighted scoring and synthesis scores of each
treatment are displayed in Table 3.12. T3 showed the highest score (7.6), followed
by T2, T1 and T4. The synthesis scores of various treatments were subjected to
orthogonal factor analysis. Based on the ranges of various factors, it can be seen
that biogas residue intensively influenced the fermentation effect of mixed compost
while chicken and pig manures showed an insignificant influence. By comparing the
average effects of biogas residue, pig and chicken manures at different levels, it can