Rainwater harvesting potential in water abundant and scarce regions in northeast Brazil using remote sensing

Gomes, Yan Ranny Machado; Jucá, Marcella Vasconcelos Quintella; Batista, Larissa Ferreira David Romão; Neto, Alfredo Ribeiro; Santos, Sylvana Melo dos

doi:10.1007/s40899-021-00543-7

Sustain. Water Resour. Manag.

2021

DOI: 10.1007/s40899-021-00543-7

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Rainwater harvesting potential in water abundant and scarce regions in northeast Brazil using remote sensing

Yan Ranny Machado Gomes

Marcella Vasconcelos Quintella Jucá

Larissa Ferreira David Romão Batista

et al.

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2024

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Cited by 3 publications

References 30 publications

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Caracterização pluviométrica dos últimos 50 anos em Caruaru - PE, com análise de tendências, máximas diárias, Curvas IDF e distribuição Gumbel

Galindo Mousinho,

Lima,

Alves Pereira

et al. 2024

Rev. Bras. Geog. Fis.

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O aumento da degradação do meio ambiente tem sido uma consequência recorrente do crescimento populacional e, por isso, é cada vez mais evidente a preocupação em preservar os recursos naturais para as próximas gerações, sendo essa uma pauta frequente em todo o mundo. A forte escassez hídrica em localidades anteriormente caracterizados pelo alto índice pluviométrico ratifica a ocorrência de mudanças climáticas. Em regiões semiáridas, a situação é ainda mais alarmante, uma vez que a área se caracteriza por um longo período de estiagem em parte do ano. Nesse contexto, a cidade de Caruaru-PE foi considerada, nos últimos anos, como em estado de calamidade, ratificando a necessidade local de priorizar o manejo dos recursos hídricos. Dessa maneira, realizou-se através de análises estatísticas, a caracterização das chuvas de uma série histórica de 1972 a 2021, em que foram geradas curvas de intensidade-duração-frequência (IDF) e foram analisadas as tendências de crescimento da precipitação. Os dados da chuva foram representados por distribuições teóricas de probabilidade, para as precipitações Máximas Diárias Anuais (PMDA). Aplicou-se distribuição de Gumbel para estimativa da chuva em diferentes tempos de retorno, com comprovada aderência aos dados pelo teste de Kolmogorov-Smirnov ao nível de significância de 5%. Os parâmetros da equação de chuvas intensas foram obtidos por regressão linear. As análises mostraram que período mais chuvoso, corresponde aos meses de fevereiro a julho, atingindo valores acima da média mensal (56,49 mm). Com teste de Mann-Kendall, se verificou que não há tendência significativa para os dados de precipitação, porém existe uma tendência crescente no número de dias sem chuva.

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Caracterização pluviométrica dos últimos 50 anos em Caruaru - PE, com análise de tendências, máximas diárias, Curvas IDF e distribuição Gumbel

Galindo Mousinho,

Lima,

Alves Pereira

et al. 2024

Rev. Bras. Geog. Fis.

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Financial Feasibility of Harvesting Rainwater from Permeable Pavements: A Case Study in a City Square

Klein

Maykot

Ghisi

et al. 2023

Sci

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The objective of this study was to carry out the financial feasibility analysis of harvesting rainwater from permeable pavements in a city square. A case study was carried out in a square close to the beach in the city of Florianópolis, Brazil. Questionnaires were applied to pedestrians who circulate within the area. The square is to be implemented to promote sustainability and improve the user’s quality of life. From the rainfall data and the average daily water demand for irrigation of the square vegetation, the volume of rainwater to be harvested from the permeable pavement was calculated. The rainwater demand was estimated as 662 L/day. The implementation and operation costs of the pavement and irrigation systems were evaluated. The potential for potable water savings was 89.8%. The payback period was estimated as 347 months. This study showed that rainwater collected from permeable pavements is financially feasible and represents a promising technique.

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Comprehensive Environmental Assessment of Rainwater Harvesting Systems: A Literature Review

Teston

Scolaro

Maykot

et al. 2022

Water

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The feasibility of installing rainwater harvesting systems in buildings is usually defined based primarily on economic analysis. In this perspective, we reviewed the literature related to water consumption in buildings, rainwater use, and environmental assessment tools to evaluate the impact of rainwater harvesting on the environment. Identifying water end uses in buildings showed a high potential for potable water savings through alternative sources (e.g., rainwater use for non-potable purposes). Most studies reviewed found potential for potable water savings from 20 to 65%. Moreover, the literature reported that rainwater harvesting systems might reduce the runoff volume from 13 to 91%. However, other possible benefits and impacts of the systems on water flow and the environment must be assessed in addition to the potential for rainwater harvesting. Life cycle assessment, life cycle cost assessment, and water balance modelling have been used in urban water management. Most life cycle studies reported that rainwater harvesting systems have better environmental performance than centralised systems. The water balance method may effectively determine the impacts these systems cause on the water cycle. Using life cycle assessment and the water balance method together is essential to evaluating rainwater harvesting systems integrated into the urban environment.

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Rainwater harvesting potential in water abundant and scarce regions in northeast Brazil using remote sensing

Cited by 3 publications

References 30 publications

Caracterização pluviométrica dos últimos 50 anos em Caruaru - PE, com análise de tendências, máximas diárias, Curvas IDF e distribuição Gumbel

Caracterização pluviométrica dos últimos 50 anos em Caruaru - PE, com análise de tendências, máximas diárias, Curvas IDF e distribuição Gumbel

Financial Feasibility of Harvesting Rainwater from Permeable Pavements: A Case Study in a City Square

Comprehensive Environmental Assessment of Rainwater Harvesting Systems: A Literature Review

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