**6. Conclusion**

Energy recovery is considered to be a sustainable way of managing household waste. The study concerns the case of a developing country with several problems related to the waste management sector. In this chapter, the RDF recovery process in cement kilns has been studied for the case of a region in Morocco. The results of the evaluation have led to the conclusion that the substitution of petroleum coke with RDF with a percentage of 15% saves 389 USD/hour. In addition to these benefits, the co-incineration of RDF reduces the volume of waste, increases the life of the landfill and provides sustainable and renewable energy.
