Proposta de mecanismo de gestão de água para o Conjunto Habitacional Aluízio Campos em Campina Grande - PB.

Abstract

In medium-sized cities, potable water supply and sanitary sewage, when performed by centralized systems, may prove fragile to the increasing demands related to use of these systems. The increase in demands is due, among other factors, to the urban expansion, and initiatives of the My House My Life Project (MHMLP) represents a new populational contingent added to the sanitation system. The infrastructure guidelines for housing developments are described in the Programa de Aceleração do Crescimento (PAC), however, lack of demand for alternative water management measures may overload existing structures. An example of this aggravation is the Aluízio Campos Housing Set, located on the edges of Campina Grande city - PB, being a building integrated in the MHMLP, having a housing complex with 4100 residential units. The housing set has a minimum basic sanitation structure, but it has a deficiency in mechanisms for water demand management. knowing this problem, this work analyzes the legal guidelines and norms related to the development and sustainable management of water demand. The analysis also extends to the processes related to the management of water resources, estimating the scenario of consumption and actual effluent production and suggesting two systems that use rainwater harvesting, one through a centralized reservoir for the entire housing complex and another with individualized reservoir with capturing the roofs of horizontal buildings. The suggested systems are analyzed applying concepts of Cities Sensitive to Water and Urban Metabolism of water. When related to legislation, the analysis showed that there are sustainable development measures, but there is no obligation for measures that fit as water management policy related to alternative sources of supply. By means of the urban metabolism analysis, the system with a centralized reservoir had a potential of saving 35% of drinking water, which could reduce effluent production by 69%. In addition, it produces a new water supply of 325,785.88 m³. Already applying individualized rainwater harvesting, the potential to save 12% of the volume supplied, which in relation to the production of effluent, represents a reduction of about 7%.