Treatment of Stormwater using Fibre Filter Media

Johir, M.A.H.; Lee, J. J.; Vigneswaran, S.; Kandasamy, Jaya; Shaw, K.

doi:10.1007/s11267-009-9237-7

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…Though the average removal efficiency of total suspended solids (TSS) was 98.45 %, it was observed that 89 % of the filter combinations showed 100 % removal of suspended particles. The removal percentage of TSS in the present study was in concurrence with the study results by Johir et al (2009), who reported a removal percentage of 94-98 for suspended solids by using a fibre filter.…”

Section: Hydraulic Efficiencysupporting

confidence: 93%

“…The removal of organic forms of nitrogen in most gravel filters was generally high, ranging from 60 to 75 %. Johir et al (2009) reported a nitrate reduction in stormwater using a fibre filter media from the range 0.38-0.79 to 0.005-0.093 mg L -1 (approximately 93 % reduction). However, denitrification process was the major removal mechanism in all these cases.…”

Section: Hydraulic Efficiencymentioning

confidence: 99%

“…The use of tertiary membrane-filtered municipal wastewater for irrigation as an alternative to natural freshwater sources was evaluated by Lonigro et al (2006) in Italy and found that it can be considered a valid alternative source of water for vegetable crop irrigation. In another study conducted in Australia (Johir et al 2009), a high-rate fibre filter was used as a pre-treatment to stormwater in conjunction with in-line flocculation. Gironas et al (2008) conducted study of a mixed porous media composed of expanded perlite and a nonwoven needle-punched geotextile to reduce the suspended solids load and concentration in urban runoff.…”

Section: Introductionmentioning

confidence: 99%

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Performance evaluation of environmentally compatible stormwater filtration systems

Samuel

Senthilvel

2013

Int. J. Environ. Sci. Technol.

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A horizontal flow multimedia stormwater filter was developed and tested for hydraulic efficiency and pollutant removal efficiency. Suitability of different natural fibres such as jute, sisal, hemp, coir and oil palm was studied as filter media. Furthermore, the efficacy of different fabric filter screens made up of both woven and nonwoven textiles was also assessed. A new terminology, Universal Performance Index, was introduced. Analysis of these indices showed that jute medium, nonwoven sisal screen and media proportion 1:1:1 performed better. All of the filter combinations exhibited 100 % sediment removal at lower sediment concentration in the inflow. Percentage of discarded flow versus reference flow for the stormwater filter combinations showed that the device performed better at lower flow rates. It was also observed that the hydraulic efficiency was directly proportional to the slope and inversely proportional to the cross-sectional area of the filter. Hydraulic efficiency showed a diminishing trend as the sediment level in inflow increases. By using matrix ranking method, the gravel-coir fibre-sand filter in 1:1:1 proportion with woven sisal hemp screens was selected as the best filter combination. The field evaluation of the filter showed 97.24 % efficiency in normalizing pH and 13.27 % efficiency in reducing electrical conductivity. The removal percentages of magnesium and sodium were 32 and 34 %, respectively. But higher removal efficiencies above 70 % were recorded for total solids, nitrates and sulphates.

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Section: Hydraulic Efficiencysupporting

confidence: 93%

Section: Hydraulic Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance evaluation of environmentally compatible stormwater filtration systems

Samuel

Senthilvel

2013

Int. J. Environ. Sci. Technol.

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“…al, 2007;LEE et. al, 2008a;JOHIR et. al, 2009) Trata-se assim de uma tecnologia inovadora e eficiente, sendo interessante avaliar sua aplicabilidade em sistemas de tratamento de água visando eficiência de remoção e possivelmente baixos custos de implantação, operação e manutenção.…”

Section: Fatores Que Influenciam O Desempenho Do Filtro De Fibras Fleunclassified

Emprego de filtro de fibra flexível constituído de sisal e de polipropileno na clarificação de água para abastecimento

Morita¹

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Reali, pela orientação, pela atenção e paciência, e por todos os ensinamentos durante a pesquisa e também durante a graduação. Ao técnicos Roberto Bérgamo e Alcino, pela montagem das instalações utilizadas na pesquisa, pela atenção e capricho e pelas valiosas dicas e explicações. À técnica Maria Teresa, pelo auxílio em laboratório, pela disposição em sempre ajudar. À CAPES, pela concessão de bolsas. Ao Diego, meu companheiro de vida, por cada momento compartilhado, agora e sempre. Pelas conversas, pelo apoio, pelo amor e por estar ao meu lado, trilhando novos caminhos. A meus pais, pela minha formação, por cada conversa e momento que me permitiram chegar até aqui. A meus amigos, especialmente à Vivian, minha amiga do peito, por sempre me ajudar, me ouvir, e pelas risadas que sempre demos! Pela ajuda especial que me deu nesta etapa final dos estudos!

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