Tendencias en el Tratamiento de Aguas Residuales Domésticas

Abstract

The increasing consciousness that wastewater treatment is of vital importance to avoid or to reduce the environmental contamination, resulted in the necessity to develop processes that combine a high treatment efficiency with low construction and operation and maintenance costs. This work intends to show the new tendencies on domestic sewage treatment applying appropriate technologies of the technical and economical viewpoint and removal efficiency to obtain a good quality in the treated effluent. There are shown any experiences of most application in our country and on regions with similar social-economical and climatic characteristics. It is considered that the application of the anaerobic technology combined with different aerobic options as complementary unity of the treatment systems, offer an interesting alternative for our country because it is possible to obtain effluents with a good quality with less cost on investment and operation and maintenance if compared with the application of conventional aerobic technology. Keywords: domestic sewage; anaerobic treatment; post-treatment; combined systems.