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Abstract(s)
A presente dissertação surge na necessidade de melhorar e compreender a gestão de água
nas Piscinas Municipais Carlos Manafaia, em Sines. Este tipo de equipamento é bastante
procurado para atividades desportivas e lúdicas, porém são instalações que consomem
quantidades de água potável bastante consideráveis.
O presente trabalho faz uma análise da eficiência hídrica existente e propõe medidas para
reduzir os seus consumos ao longo do ano, faz também a análise ao aproveitamento das
águas pluviais, assim como o estudo da reutilização das águas cinzentas para outros fins
como a rega do relvado na envolvente e fornecimento de água aos serviços
municipalizados de espaços verdes.
No decorrer do estudo chegou-se a valores de poupança de água na ordem dos 27 %. As
soluções propostas tiveram em consideração facto do equipamento ser de utilização
pública e a poupança de água e economia, nomeadamente regularização e substituição de
autoclismos, torneiras, chuveiros e mictórios.
Na avaliação dos SAAP e SPRAC, considera-se poupança de água ao volume que estes
sistemas são capazes de gerar ou armazenar. Em relação ao SAAP chegou-se aos 158,4
m3/ano, traduzidos numa poupança de 941,13 €/ano, satisfazendo a 100% a necessidade
mensal de rega das 55 árvores na envolvente das piscinas municipais. Em relação ao
SPRAC considerou-se que serviria para regar a área de relvado na envolvente das piscinas
municipais, que consome 5346 m3/ano e que suprimiu 100% das suas necessidades
hídricas anuais, em relação a fornecer água ao serviço de espaços verdes este sistema
consegue suprimir as suas necessidades de consumo de água durante a maior parte do
ano, simultaneamente com a rega do relvado. Chegou-se a valores totais de cerca de
8594,10 m3 gerados, poupando ao município cerca de 37.080,65 €. Contudo, qualquer
cenário a ser considerado é uma mais valia para as piscinas, para o município, população
e meio ambiente.
This dissertation arises from the need to improve and understand water management at the Carlos Manafaia Municipal Pools in Sines. This type of facility is highly sought after for sports and recreational activities; however, they consume significant amounts of potable water. This work analyzes the existing water efficiency and proposes measures to reduce water consumption throughout the year. It also examines the utilization of rainwater and the study of greywater reuse for other purposes, such as irrigating the surrounding lawn and supplying water to municipal green spaces. During the study, water savings of approximately 27% were achieved. The proposed solutions took into consideration the fact that the equipment is for public use, focusing on water savings and economy, including the regulation and replacement of toilets, faucets, showers, and urinals. In evaluating the RHS (Rainwater Harvesting System) and GRS (Greywater Recycling System), water savings are considered based on the volume these systems are capable of generating or storing. For the RHS, a savings of 158.4 m3/year was achieved, translating to a savings of €941.13/year, satisfying 100% of the monthly irrigation needs for the 55 trees surrounding the municipal pools. As for the GRS, it was considered suitable for irrigating the lawn area surrounding the municipal pools, consuming 5346 m3/year and completely fulfilling its annual water needs. In terms of supplying water to the green spaces service, this system can satisfy its water consumption needs for most of the year, concurrently with lawn irrigation. The total generated savings were approximately 8594.10 m3, resulting in a municipality savings of about €37,080.65. Nevertheless, any scenario considered is a valuable asset for the pools, the municipality, the population, and the environment.
This dissertation arises from the need to improve and understand water management at the Carlos Manafaia Municipal Pools in Sines. This type of facility is highly sought after for sports and recreational activities; however, they consume significant amounts of potable water. This work analyzes the existing water efficiency and proposes measures to reduce water consumption throughout the year. It also examines the utilization of rainwater and the study of greywater reuse for other purposes, such as irrigating the surrounding lawn and supplying water to municipal green spaces. During the study, water savings of approximately 27% were achieved. The proposed solutions took into consideration the fact that the equipment is for public use, focusing on water savings and economy, including the regulation and replacement of toilets, faucets, showers, and urinals. In evaluating the RHS (Rainwater Harvesting System) and GRS (Greywater Recycling System), water savings are considered based on the volume these systems are capable of generating or storing. For the RHS, a savings of 158.4 m3/year was achieved, translating to a savings of €941.13/year, satisfying 100% of the monthly irrigation needs for the 55 trees surrounding the municipal pools. As for the GRS, it was considered suitable for irrigating the lawn area surrounding the municipal pools, consuming 5346 m3/year and completely fulfilling its annual water needs. In terms of supplying water to the green spaces service, this system can satisfy its water consumption needs for most of the year, concurrently with lawn irrigation. The total generated savings were approximately 8594.10 m3, resulting in a municipality savings of about €37,080.65. Nevertheless, any scenario considered is a valuable asset for the pools, the municipality, the population, and the environment.
Description
Keywords
Aproveitamento de Águas Pluviais Eficiencia Hídrica Piscinas Municipais Reaproveitamento de Águas Cinzentas Viabilidade Tecnico-Económica