MOROCOMP (LIFE TCY05/MA000141) - Unit of Environmental ...

Directive 91/271/EEC 7 seeks to harmonise measures relating to the treatment of
wastewater at Community level in order to protect the environment from any adverse
effects due to discharge of such waters [42].
5.1.8. Removal and collection of the composting end product
The removal and collection of compost was perfomed on the 30 th day of the
composting process through the removal portals that are situated at the bottom part of
the bioreactor. To facilitate the discharge of the end product the agitation system was
operated for small intervals. The compost was collected manually using shovels and it
was used as filling material to the biofilter bed.
5.1.9. Sampling and analysis of the produced compost
In order to evaluate the quality of the end product resulting from the 1 st composting
trial a series of parameters were examined. Table 8 presents the physicochemical
properties of the compost produced from the raw material shown in Table 5 which
aquire the characteristics presented in Table 2.
Table 8: Physicochemical parameters of the compost produced in the 1 st composting trial
Parameter
Compost
Dry Solids (% d.s) 63.90
pH 7.31
Total Carbon (% d.s) 28.84
Total Nitrogen (% d.s) 2.86
C:N Ratio 10.08
NO - 3 - N ( mg/Kg d.s ) 1286.48
NH + 4 - N( mg/Kg d.s) 302.62
Total P, as P 2 O 5 (% d.s) 0.7584
K, as K 2 O (% d.s) 3.0118
Ca as CaO (% d.s) 4.7107
Mg as MgO (% d.s) 2.1266
7 Council Directive 91/271/EEC concerning urban waste water treatment
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