Comparação de desempenho hidrológico de sistemas de infiltração de água de chuva: poço de infiltração e jardim de chuva

Reis, Ricardo Prado Abreu; Ilha, Marina Sangoi de Oliveira

doi:10.1590/s1678-86212014000200006

Cited by 13 publications

(9 citation statements)

References 6 publications

(3 reference statements)

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“…According to Reis and Ilha (2014), before each test, the dry-well were filled and emptied three time in a row, in order to increase the moisture of the soil in the contour region, creating a more unfavorable operation condition. Thus, only the data collect after the fourth filling procedure were considered in the analyses.…”

Section: Methodsmentioning

confidence: 99%

Drywells Dimensioning: Analogy Between Water Flow in Soil and Heat Flux in Media Solids

Ferreira¹,

Ilha²

2020

J. Urb. Environ. Engng

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The drywell is an on-lot drainage system, which is composed by an excavation in the soil lined with a perforated piped and gravel at the bottom and sides. There are many models for on lot systems dimensioning, which were initially developed for agriculture areas or for simulation of water percolation in porous media, thus, they are not fully optimized for small areas like urban lots. This article proposes a model for dimensioning drywells, which is based on physical and hydrological characteristics of the installation site. It was developed using the analogy between water flow in soil and the heat flux in media solids. Results obtained with the proposed model were statistically similar (p>0.05) to those obtained with experimental data.

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Section: Methodsmentioning

confidence: 99%

Drywells Dimensioning: Analogy Between Water Flow in Soil and Heat Flux in Media Solids

Ferreira¹,

Ilha²

2020

J. Urb. Environ. Engng

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“…In recent decades, the trend of adopting concepts for the development of low-impact solutions has been studied in an attempt to maintain the equilibrium conditions of the water balance (REIS and ILHA, 2014). According to Barbassa et al…”

Section: Infiltration Wellmentioning

confidence: 99%

Uso de filtro de carvão ativado em poço de infiltração para retenção de contaminantes metálicos presentes no ambiente urbano

Souza

Poleto²,

Lázaro³

et al. 2022

CeN

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Nas cidades, o alagamento impacta negativamente a vida de seus moradores e transeuntes, que ficam impossibilitados de se deslocarem durante o fenômeno de chuvas intensas, havendo ainda potenciais perdas humanas e bens materiais, coexistindo ao risco de contaminação através do contato direto ou indireto com a água retida na via. Com a premissa de atender essa problemática, esta pesquisa traz, como alternativa estrutural, o uso do poço de infiltração adaptado para a mitigação do alagamento, adjunto de forma paralela ao sistema de drenagem pública de águas pluviais, capaz de promover a restituição do recurso hídrico ao lençol freático através da infiltração e notadamente, livre de poluentes externos. Deste modo, foi previsto o uso nesta estrutura como material filtrante o carvão ativado granular, para a retenção de contaminantes presentes na superfície urbana impermeável, por exemplo, metais pesados como Chumbo (Pb), Cromo (Cr), Cadmio (Cd) e Níquel (Ni), sendo a eficiência desse filtro avaliada através de um comparativo com os resultados obtidos em amostras de água de escoamento superficial, correspondentes ao período chuvoso para um ambiente urbano delimitado na cidade de Cuiabá-MT. Pôde-se concluir que cada grama de material filtrante possui uma capacidade de retenção de contaminantes como Pb e Cd, respectivamente de 12,05 mg e 30,58 mg, acima das concentrações observadas em campo, de modo que tal material apresenta condição para a remoção de ainda mais compostos metálicos, conferindo maior segurança a saúde humana e ao ambiente, enquanto os elementos Cr e Ni não foram encontrados em concentrações significativas, não oferecendo, portanto, risco as águas subterrâneas ou havendo a necessidade de um processo de filtragem.

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“…Although compensatory techniques are recognized worldwide as an important groundwater recharge source (Edwards et al, 2016), a few studies have analysed drywell performance to quantify experimentally its potential contribution in groundwater recharge (Sasidharan et al, 2018). In Brazil, drywells were investigated in different type of soils and infiltrate rates by Reis et al (2008), Carvalho (2008Carvalho ( , 2013, Reis & Ilha (2014), Lucas et al (2015), Barbassa et al (2014) and Ferreira et al (2018). They recognized the role of drywell in groundwater recharge in urban environments; however, they did not quantify its capacity to contribute to such process.…”

Section: Introductionmentioning

confidence: 99%

Estimation of potential groundwater recharge by a drywell in sandy clay soil

Justino¹,

Failache

Barbassa

2021

RBRH

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We estimated the potential groundwater recharge (Rpot) of a drywell that receives, temporarily stores, and infiltrates direct surface runoff from a contribution area (180.5 m2) comprising a roof and a cemented floor. The Rpot for traditional rainwater management and for similar contribution area but covered with grass was also estimated for comparison. Our methodology involved the use of water budget equation, monitoring of rainfall and soil water content up to 1.92 m depth, estimation of drywell overflow using the modified Puls model, and determination of actual evapotranspiration using water stress coefficient in 2017 and 2018. Results revealed that the Rpot for drywell was 83.3% of the precipitated volume, 2.22 times higher than that of the grass-covered area (37.6%) given the increased area for evapotranspiration in the latter. In turn, the traditional urban drainage system did not demonstrate potential of groundwater recharge. Therefore, the drywell contributes significantly to groundwater recharge apart from serving as local flood control.

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Comparação de desempenho hidrológico de sistemas de infiltração de água de chuva: poço de infiltração e jardim de chuva

Cited by 13 publications

References 6 publications

Drywells Dimensioning: Analogy Between Water Flow in Soil and Heat Flux in Media Solids

Drywells Dimensioning: Analogy Between Water Flow in Soil and Heat Flux in Media Solids

Uso de filtro de carvão ativado em poço de infiltração para retenção de contaminantes metálicos presentes no ambiente urbano

Estimation of potential groundwater recharge by a drywell in sandy clay soil

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