Proposal for water treatment to promote access to safe supply in a small community

Abstract

Universal access to water is already recognized as a human right, but your fulfillment is still a challenge in some regions of Brazil. In regions further away from urban centers, access to a water supply system is non-existent or ineffective. The population of these regions is forced to quest for alternative supplies to achieve quality home access. The residential condominium Solar de Maricá I, in the municipality of Maricá, has a water supply from individual wells, but it does not serve all the residents. This work presents a project for sizing the water supply system, in addition to a proposal for the reuse of gray waters as an alternative to preserving water resources. To do that a previous study was carried out to improve knowledge about the local reality in terms of access to water through visits to nearby condominiums with surveys on the technology used for treatment and quality of available water. Furthermore, water collections were carried out in the study condominium to establish the adequacy of the proposed system with the water quality of the place. The water purifying station operates for 16 hours daily, serving a projected population of 30 years, and consists of 2 filters in parallel with zeolite and sand as filter media, disinfection with sodium hydrochloride, two reservoirs of treated water, and a chemical house. The reuse water treatment is composed of a bio-disc reactor, equalization tank, decantation tank, accumulation tank, pressure sand filter, and disinfection system and presents itself as an effective alternative in reducing water consumption, thus preserving the resource local water resources.

DOI:https://doi.org/10.56238/devopinterscie-277