This paper is based on the design of an extensive system of filters vegetation that serves a town with 1,400 inhabitants. In this work I present methods of water purification in rural / urban and viable solutions to implement filters planted with macrophytes based on biological treatment....

In this paper we highlight one of alternative solutions in the manufacture of biofuel, which will replace the classical fuels who are being exhausted with harmful effects on the environment and human health. There are solutions to reduce net emissions of carbon dioxide by 70% compared to...