VALUTAZIONE DELLA FITODEPURAZIONE E FILTRAZIONE ANAEROBICA COME TECNICHE APPROPRIATE PER IL TRATTAMENTO DELLE ACQUE GRIGIE IN VENEZUELA

This research provides an analysis for the appropriate environmental management of the greywater in the neighborhood of Moscú II, a district of San Felix (Ciudad Guayana, Venezuela), where the inadequate management of these wastewaters has a high impact on the public health and the environment. The experimental study began at the end of 2010, with an environmental and territorial framework of the neighborhood and the choice of the most appropriate technology (biofilter and anaerobic filter). After the experimental phase in Italy, the technology was implemented in Venezuela and a monitoring phase of the physicochemical and microbiological quality of the water treated was initiated. This study has been developed by CeTAmb (University of Brescia) with the technical and financial support of the Italian NGO SVI. The investigation analyses two appropriate water treatment systems, both of which allow for low-income families to treat greywaters using economically viable methods through the use of locally available materials and plants. The results obtained demonstrate that the systems work in accordance with Venezuelan environmental standards, which means they may be reused for the purposes of household cleaning and irrigation of family lots or gardens.