OFMSW FL can be easily obtained from the separate collection of municipal waste, widely applied in Europe. PS & OFMSW FL is available when food waste disposers (FWDs) are applied for the management of municipal wastewater together with household organic waste (Iacovidou et al., 2012).
In these cases, where regular separate collection of food waste from households cannot be practiced, the PS (obtained from FWDs) is the mixture of the PS from municipal wastewater and OFMSW.
The novel scheme is examined in terms of energy aspects comparatively with the separate wastewater treatment for nitrogen removal and the selection of PHA storing biomass.
The separation of VFAs from the particulate COD that is non-VFA COD is crucial for the selection of PHA storing biomass. The biomass is able to store PHA through the uptake of VFA; the non-
VFA COD is used for growth. Hence, when the proportion of the non-VFA COD is high, the yield of PHA storage based on total COD decreases. Therefore, the denitritation rate can be limited by
a lack of stored PHA.
Fig. 1 shows the potential integration of the process within a municipal WWTP.