Influência do método de lavagem nas características de carvões antracitoso e betuminoso utilizados em meio filtrante

Wiecheteck, Giovana Kátie

doi:10.11606/d.18.2016.tde-01062016-115415

Cited by 2 publications

(2 citation statements)

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“…Comparing the last filtration runs of both systems and considering head loss tendency, it is noted that the higher filtration rate applied provided greater clogging in depth. This aspect can be associated with homogeneity and poorly sorting of the filter media (CNU = 1.48; CC = 0.86) (M. Soares & Pizzolatti, 2019; Wiecheteck, 1996).…”

Section: Resultsmentioning

confidence: 99%

Pre‐filtration followed by slow double‐layered filtration: Media clogging effects on hydraulic aspects and water quality

Lunardi

Martins

Pizzolatti

et al. 2022

Water Environment Research

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This study evaluated clogging effects on head loss and water quality in sand prefiltration columns, followed by innovative double-layered slow-filter filtration technology using anthracite coal and sand. The study was divided into two phases. Phase 1 (filtration rate 11 m 3 /m 2 Ád) had a layout of a pre-filter (PF) system followed by a slow filter (SF). In Phase 2 (filtration rates of 5.5 and 11 m 3 /m 2 Ád), two PF systems (PF1 and PF2) followed by SFs (SF1 and SF2) were monitored, be differed only by filtration rate. Phase 1 presents a mean turbidity removal of 45.6% in PF and 23.9% in SF. PF presented a lower head loss in the superficial layers of the filter media, whereas SF presented a more important contribution in the deeper layers of the bed. In Phase 2, the mean results obtained for turbidity removal in PF1 and SF1 were 84.7% and 22.4%, in that order. PF2 and SF2 promoted mean reductions of 84.5% and 22.0%, respectively. Greater clogging is observed in the PF's surface layers, whereas the SFs dissipate greater clogging with depth. Filtration rates and water quality were similar in filter media of different compositions. Practitioner Points• Double-layer filters show better use of the porous media in depth.• Different materials produce different forms of clogging. • Higher filtration rates increase the number of pre-filter and slow filter runs.

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Section: Resultsmentioning

confidence: 99%

Pre‐filtration followed by slow double‐layered filtration: Media clogging effects on hydraulic aspects and water quality

Lunardi

Martins

Pizzolatti

et al. 2022

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…Apesar de seu pretencioso nome (ESPINDOLA, 2008, p. 31-32) Odair Grillo (1911-1996 inaugura a "tecnologia de solos, tanto para pavimentação e obras de terras rodoviárias, como para fundações dos grandes edifícios que vinham sendo construídos então" (VARGAS, 2001, p. 106-107). Um impulso ainda maior ocorreu com as consultorias que os próprios Terzaghi e Casagrande deram ao projeto e à construção de barragens para aproveitamento hidrelétrico.…”

Section: Enfoque Geotécnicounclassified

Escoamento em meios porosos: um modelo analítico não darciano baseado no princípio da entropia máxima.

Lofrano¹

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Influência do método de lavagem nas características de carvões antracitoso e betuminoso utilizados em meio filtrante

Cited by 2 publications

References 0 publications

Pre‐filtration followed by slow double‐layered filtration: Media clogging effects on hydraulic aspects and water quality

Pre‐filtration followed by slow double‐layered filtration: Media clogging effects on hydraulic aspects and water quality

Escoamento em meios porosos: um modelo analítico não darciano baseado no princípio da entropia máxima.

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