As shown in Table 3, the densities of products were higher, about 4 to 5 times compared to raw
MSW in dry basis. Therefore, the 75-80% waste volume reduction can be achieved. It is to be
noted that B31 and C11 products were centrifugally dewatered (marked with additional “d”
character) before being analyzed. It can be seen that all product samples have higher moisture content but almost equal heating
values in dry basis compared to raw MSW. Therefore, their heating values of raw product, as
received base (without further drying) would only be slightly less than that of raw MSW, while
the heating value of naturally dried product in as received base would be similar or higher than
that of raw MSW due to less moisture content. Furthermore, the heating value of raw MSW and
hydrothermal treatment products (due to impregnated plastic components) were fairly equal
compared to low grade sub-bituminous coal which has the heating value of approximately 20
MJ/kg (4800 kcal/kg). Therefore, there is possibility to use the hydrothermal treatment product
as solid co-firing fuel.