RIO DE JANEIRO, BRAZIL - This will be the role of the two Gás Verde S.A. plants inaugurated on July 4th, in the state of Rio de Janeiro.
The units are located in sanitary landfills in Seropédica and Nova Iguaçu, both in Rio's metropolitan area.
According to Gás Verde S.A., biogas is cleaner than natural gas derived from oil. Once refined, it is marketed as . . .