Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
RECOVERY OF ENERGY AND WATER FROM SOLID WASTE AND DOMESTIC SEWAGE: STUDY CASE IN SÃO LUÍS - BRAZIL
Submission Author:
Fátima Lino , SP
Co-Authors:
Fátima Lino, Kamal Ismail
Presenter: Fátima Lino
doi://10.26678/ABCM.ENCIT2018.CIT18-0156
Abstract
Collection and treatment of urban solid waste and domestic sewage are essential sanitary services for the population, but in many countries as Brazil these services are defficient. In São Luís-MA, municipality with more than one million inhabitants are generated about 414 thousands ton/year of municipal solid waste and about 190 million cubic meters of domestic sewage per day. Their collection and treatment have been one of the biggest challenges for municipal administrators. This paper proposes techniques for treatment of municipal solid waste and domestic sewage with energy recovery and minimization of environmental impacts based on the recycling, biodigestion and incineration. The results show that reuse of 10% of the potential of recyclables can annually generate financial gains of R$ 6 million/year (US$ 2,7 million); the landfill biogas when converted to electricity can be enough for 5.5 thousand homes and if incinerated it can produce electricity sufficient for 24% of the residences of the city. The treated wastewater is sufficient for 45% of the homes in São Luis which has a deficit of 41.7% of homes without to treated water.
Keywords
Municipal solid waste, domestic sewage, treatment, energy, emissions
