Abstract: | The water, in its circuit, passing through various types of uses (industrial processes, domestic uses), is loaded with various materials and substances, turning into what can name by a general term "wastewater". Taking into consideration the problems Romania deals with regarding wastewater treatment, the present paper proposes to investigate the possibilities through which, municipal wastewater can be treated in small plant. In this sense, the infrastructure necessary for wastewater treatment systems must be made in the context of sustainable development by identifying the defining characteristics for each area, local and even individual households. |