Regarding the canteen wastes, the associated p values of each
fraction are greater than a. Consequently, it can be assumed that
there is no difference in the composition between periods of this
stream. However, in the case of the cleaning waste, the associated
p value of organic matter fraction is smaller than a. This means that
there are significant differences between periods in terms of the
amount of organic matter generated in each one, which reinforces
the explanation given above. For other components of the cleaning
waste, their p value is greater than a, so it can be assumed that
there are no differences in the composition for these fractions
between periods. The annual average weighted composition of
both sources is shown in Tables 3 and 4
In the canteen stream, the selective fractions