Tratamento alternativo do esgoto negro em residências rurais

Abstract

In this work, we addressed the types of alternative treatments for rural exhaustion as a theme. Its objective was to identify the alternative treatment of black sewage more efficient taking into account the cost versus benefit relation for implantation of the project in rural properties. The methodology used was a bibliographic research, with characteristic of an exploratory method, in the search to improve knowledge about the subject matter addressed. In the bibliographic review, it was contemplated sanitation and supply of rural areas, characterization of domestic sewage, ecological treatment of sanitary sewage was considered, and, finally, empirical researches, analyzed in relation to national legislation, were approach on cost-costing of alternative projects in the treatment of sanitary sewage in the rural environment of Paraná. It was verified that the cost versus benefit relationship of the alternative treatment system of the rural exhaustion most discussed in the literature is of the type filter garden, theoretically defined by Embrapa, and empirically evaluated under the denomination of Sewage Treatment Station by Roots Zone (ETERZ). The empirical data verified in the researches show that this system, until then, reveals itself as the one that best suits the conditions of the black sewage produced in the rural environment of Paraná.