Analysis and treatment of household and similar waste for energy recovery

The recycling and recovery of household and similar waste (hsw) represents a real potential in the kingdom of morocco. the quantity generated is important with a significant annual growth of 0.75 kg/person/day with a total quantity generated in 2013 around 5. 377. 000 t. therefore,morocco is facing a real challenge to deal environmental problems. in the present study,an integrated approach has been proposed and validated on real conditions. this approach aims to develop both alternative green fuel (eaf) and high-quality compost. this study is based on a qualitative and quantitative analysis of hsw carried out on two appropriate characterization campaigns to selected moroccan landfills. the fraction of alternative fuel (af) with a considerable calorific power represents 38% of the hsw,while the fermentable fraction (ff) is approximately 59% of the total amount of hsw. experimental analysis has been done to determine lower calorific power (lcp) as well as gas emission fractions which showed an lcp of 27 mj/kg and the presence of antimony and chloride. the study realized in laboratory on af shows that these hazardous elements (sb & cl) were present mainly in pet,pvc,textile and hdpe (hight density polyethelene) with content very high than international norms. therefore it was necessary to remove the aforementioned fraction from af to provide an eco-friendly combustible with a lcp of 21 mj/kg and a percentage of 22% of hsw. the ff moisture and trace elements analysis showed that the water content was about 70% and that heavy metals content was conform with international standards for producing compost.