Clariflocculator Calculations

Design calculations for 25MLD clariocculator in a water treatment plant

general parameters Design Flow output from WTP Design Flow input to WTP, consider 5% losses in WTP Design ow Pumping $ours in aw Water Pumping &tation 'n t(e )asis of 2" (our pumping, design ow +- P+/T/& o . 'f clariocculators Flow in 0lariocculator Detention time in occulation one, range 1* minutes 3olume re4d. in occulation one Proide Water Dept( in occulation one, range "*.5 m e4uired Dia of occulation tan Proide a Dia of occulation tan 3olume proided ssume surface loading 7ange "55 m8da9: &urface area re4uired rea of Flocculation  Total  Total rea of 0lariocculator including occulation Proide area of 0lariocculator including occulation Dia of 0lariocculator Proide dia of 0lariocculator Detention time 7detention time range 12 (ours:, 3olume re4uired in 0larif9ing one Water dept( in clarif9ing one 7assumedspecicient of drag 7.; 1.!: D9namic iscosit9 7 C : elocit9 of water at t(e tip of )lade elocit9 of water adacent to t(e tip of paddel assumed 7clari: as per speci
dimensions 25 26.25 1!".#5 2" 1 1*1 1 1 1*1 "  . 5#.5 ".#5 1".!21222!5* 1* 5#6.!#5 "5 #;2.6;6!56522 1 5 " .; 6 !"6.*6;6!56522 ! "# "*.5*;!5!#62 "5 2 2 2;2 " 2"*#.;26;6!565 1 in 12 ." 1 ; .0.0 2 1 .* .;!?1@"  .* .1 !!; 1 2 * 15

dist of paddle s(aft from t(e centre line of erticle s(aft dist of paddle s(aft from t(e centre line of erticle s(aft Power input to occulator Proide outlet launder of , widt( Proide outlet launder of , dept( Flow in Eaunder, for 5% ow lengt( Weir Eoading taen Eaunder Perimeter re4uired Proide weir to (ae inlet from )ot( sides, t(us launder perimeter re4uired is &o Proide weir to (ae inlet from )ot( sides, t(us launder perimeter re4uired is ctual launder lengt( proided &urface Eoading Weir Eoading Dept( at outer edge ottom slopes 8 or scrapper )ridge time for one re. G +inimum 1G12 (oriontal A * +inutes or more +inimum sie of sludge pipe

.!55*1*12# 1 2".!; .; .; 5#.5 1 2#".;* 1"6.!2 1"# 111.156 " to * B " ". to "."

25

units

+ED +ED cu8(our $ours cu8(our no cum8(our +inutes cum m m m cum m8da9 s4m s4m s4m s4m m m (ours cum m cum m8min cum8s4m8(r mm sec1 pa.s m8sec m8sec g8cu.m s4m rpm satis
m m watts m m m"8(r m"8d8m m m m m m"8 m28 Da9. m" 8 m8 da9 m

mm