Waste water computation
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14 Terms
1
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[(Doi-Dof) / Vs] x Vb
Bod unseeded
2
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[(Doi-Dof-SF) / Vs] x Vb
BOD seeded
3
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(BOD x seed in dilution) /Vb
Seed correction
4
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(Vdiluted sample / Vundiluted sample) x 100%
Sample size %
5
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(Vundiluted sample / Vdiluted sample) x 100%
Dilution factor
6
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BOD loading /BOD Q/person/day
People
7
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(BOD x Q) / (V x MLVSS)
BOD /COD /SS loading
8
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(MLVSS x V aeration tank) / (QwXw +QeXe)
MCRT
9
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(SV/MLSS) X 1000
Sludge volume index
10
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( SV x 1000) /SVI
Sludge density index (Xr)
11
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(SV x Q) /SVI
Return Sludge (Qr)
12
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(g(Pp-Pf) dp^2)/18u
Settling velocity stokes law
13
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/(4g(Pp-Pf)dp^2) / 3Cd P
Settling velocity newtons law
14
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Cd YA (V^2/2g)
Drag force
Note 
Flashcards (47)