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Description
| - This paper presents a comparison of the calculated values of settling velocity of sand with values determined experimentally. Correct determination of the settling velocity of the sand is very important for the effective design of equipment for primary treatment of the waste water, namely a sand trap. A sample of sand taken from the wastewater treatment plant was deprived of organic components and then dried at 105 °C for 12 hours. On the basis of sieve analysis conducted in accordance to standard ČSN EN 933-1, individual grains of sand were divided into fractions of 0.125 mm, 0.25 mm, 0.5 mm, 1 mm and 2 mm. Settling velocity fractions of each species was first identified experimentally on the laboratory track path. These experimental values were further compared with values calculated according to the Newton's Law, Stokes Law and Allen's Law. Following evaluation of experimental and calculated data, based on calculated deviations it was shown that in case of particles with a diameter of 0.5 mm, 0.25 mm and 0.125 mm it is advisable to use a various type of equation than the equations recommended for the respective flow type. Deviations between calculated and experimentally measured data are relatively high and reach up to 69 %.
- This paper presents a comparison of the calculated values of settling velocity of sand with values determined experimentally. Correct determination of the settling velocity of the sand is very important for the effective design of equipment for primary treatment of the waste water, namely a sand trap. A sample of sand taken from the wastewater treatment plant was deprived of organic components and then dried at 105 °C for 12 hours. On the basis of sieve analysis conducted in accordance to standard ČSN EN 933-1, individual grains of sand were divided into fractions of 0.125 mm, 0.25 mm, 0.5 mm, 1 mm and 2 mm. Settling velocity fractions of each species was first identified experimentally on the laboratory track path. These experimental values were further compared with values calculated according to the Newton's Law, Stokes Law and Allen's Law. Following evaluation of experimental and calculated data, based on calculated deviations it was shown that in case of particles with a diameter of 0.5 mm, 0.25 mm and 0.125 mm it is advisable to use a various type of equation than the equations recommended for the respective flow type. Deviations between calculated and experimentally measured data are relatively high and reach up to 69 %. (en)
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Title
| - Study of Settling Velocity of Sand Particles Located Wastewater Treatment Plant
- Study of Settling Velocity of Sand Particles Located Wastewater Treatment Plant (en)
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skos:prefLabel
| - Study of Settling Velocity of Sand Particles Located Wastewater Treatment Plant
- Study of Settling Velocity of Sand Particles Located Wastewater Treatment Plant (en)
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skos:notation
| - RIV/62156489:43210/11:00169274!RIV14-MSM-43210___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/62156489:43210/11:00169274
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - settling velocity; wastewater treatment plant; sedimentation; primary treatment; sand (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Trávníček, Petr
- Vítěz, Tomáš
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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