Application of a metal membrane for rainwater utilization: filtration characteristics and membrane fouling

Kim, Reeho; Lee, Sang-Ho; Kim, Jong‐Oh

doi:10.1016/j.desal.2004.12.004

Cited by 53 publications

(34 citation statements)

References 7 publications

(6 reference statements)

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“…The effluent microorganism concentration was based on the thresholds established by national codes to use rainwater for clothes washing (0 MPN/100ml (ABNT, 2007)) and treated grey water for toilet flushing (500 MPN/100ml (ABNT, 1997)). The UV doses could be lower if less conservative limits for disinfection were adopted; for example, 1000 MPN/100ml for toilet flushing, as described by Kim et al (2005).…”

Section: A N U S C R I P Tmentioning

confidence: 99%

Water-energy nexus in low-income houses in Brazil: the influence of integrated on-site water and sewage management strategies on the energy consumption of water and sewerage services

Vieira

Ghisi

2016

Journal of Cleaner Production

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Section: A N U S C R I P Tmentioning

confidence: 99%

Water-energy nexus in low-income houses in Brazil: the influence of integrated on-site water and sewage management strategies on the energy consumption of water and sewerage services

Vieira

Ghisi

2016

Journal of Cleaner Production

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“…It can be found in the literature E. Ghisi (B) Laboratory of Energy Efficiency in Buildings, Department of Civil Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-900, Brazil e-mail: enedir@labeee.ufsc.br that rainwater is being used, for example, in hotels in China (Deng 2003), schools in Taiwan (Cheng 2003;Cheng and Hong 2004;Wung et al 2006), houses and residential buildings in Germany (Herrmann and Schmida 1999), houses in Australia (Coombes et al 1999) and in the UK (Fewkes 1999a), amongst others. There have been studies on rainwater treatment as well (Kim et al 2005(Kim et al , 2007Nolde 2007;Panigrahi et al 2007). However, there is little information on rainwater tank sizing (Fewkes 1999b;Appan 1999;Domínguez et al 2001;Van Zyl et al 2008).…”

Section: Introductionmentioning

confidence: 96%

Parameters Influencing the Sizing of Rainwater Tanks for Use in Houses

Ghisi

2009

Water Resour Manage

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Rainwater harvesting has been studied in different countries as a way of easing water availability problems and reducing potable water demand in buildings. The most important factor relating to the efficiency of a rainwater system is the correct sizing of the rainwater tank. Therefore, the objective of this article is to assess the influence of rainfall, roof area, number of residents, potable water demand and rainwater demand on rainwater tank sizing. The analysis was performed by using computer simulation and by considering daily rainfall data for three cities located in the state of São Paulo, Brazil. The roof areas considered were 50, 100, 200 and 400 m 2 ; the potable water demands were 50, 100, 150, 200, 250 and 300 l per capita per day; the rainwater demands were taken as a percentage of the potable water demand, i.e., 10% to 100% at increments of 10%; and the number of residents was two and four. Results indicated a wide variation of rainwater tank sizes for each city and also for each parameter. The main conclusion that can be made from the study is that rainwater tank sizing for houses must be performed for each specific situation, i.e., considering local rainfall, roof area, potable water demand, rainwater demand and number of residents. Therefore, sizing rainwater tanks according to local tradition is not recommended as it may incur low efficiency.

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“…São encontrados na literatura poucos exemplos de sistemas de tratamento de água pluvial para fins não potáveis. Existem alguns trabalhos com emprego de técnicas sofisticadas, tais como membrana e ozonização (KIM; LEE; KIM, 2005); ou mesmo emprego sem nenhuma espécie de tratamento (KAHINDA; TAIGBENU; BOROTO, 2007), entre outros. Todavia, tal como apontado em Li et al (2010) o tratamento simples apresenta-se como o mais promissor.…”

Section: -Introduçãounclassified

Avaliação do desempenho de uma unidade em escala real para tratamento de água pluvial empregando a filtração direta por meio de filtro de pressão e amido natural de milho como coagulante primário

Murakami¹,

Moruzzi

2017

Cieng

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RESUMOEste trabalho investigou o desempenho de um sistema experimental de tratamento de água pluvial, visando uso não potável. Optou-se por prescindir o descarte da primeira chuva (first flush) na expectativa de controlar a qualidade da água captada somente via sistema de tratamento e minimizar o volume descartado pelo first flush. Foram realizados ensaios de filtração direta em escala real com emprego de filtro de pressão e aplicação de solução de amido natural de milho como coagulante primário. Para avaliação do desempenho do sistema, foram analisadas a eficiência na remoção de impurezas ao longo das carreiras de filtração e a produção efetiva do sistema. Os resultados indicaram remoção de turbidez de até 70,8% e remoção de cor aparente de até 61,0%. A retrolavagem do sistema de filtração foi completada em 3 minutos a uma taxa de 1.440 m 3 /m 2 dia com consumo percentual de água tratada da ordem de 0,5 a 2,2% do volume potencialmente captável. Palavras-chave: água pluvial, captação, tratamento, aproveitamento, economia. ABSTRACTThe aim of this study was to investigate the performance of an experimental rainwater treatment system for non-potable uses. Without the first-flush discharge it was expected to control the quality of captured rainwater and to minimize the rainwater by-pass caused by the first-flush strategy. A full-scale direct filtration unit was operated and a solution of natural corn starch was used as the primary coagulant. The color, turbidity e coliform efficiencies of the unit was analyzed based on filtration loads and the net water production was estimated. The results pointed out turbidity removal up to 70.8% and color removal up to 61.0%. The backwash of the filtering system was completed in 3 minutes at the rate of 1,440 m 3 /m 2 day with consumption of treated water from 0.5% to 2.2%, based on the potentially harvesting.

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Application of a metal membrane for rainwater utilization: filtration characteristics and membrane fouling

Cited by 53 publications

References 7 publications

Water-energy nexus in low-income houses in Brazil: the influence of integrated on-site water and sewage management strategies on the energy consumption of water and sewerage services

Water-energy nexus in low-income houses in Brazil: the influence of integrated on-site water and sewage management strategies on the energy consumption of water and sewerage services

Parameters Influencing the Sizing of Rainwater Tanks for Use in Houses

Avaliação do desempenho de uma unidade em escala real para tratamento de água pluvial empregando a filtração direta por meio de filtro de pressão e amido natural de milho como coagulante primário

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