solved numericals on sedimentation

1. May 20
plain Se4tlmgtone of
Shape to teat 3mLD of hwwle
Desig
Decfanula
with dtienieo time The evey flho afL
shld he ess dhtb tb,coo Lld /m Lf
water cevtins Gec 9ll of usptnde
d
seffleable
Solids o hhich
calCulate he
L4t ys
Volmc of
sludye f
cleahihn9 pe ryod
Volume ef the 49nk 1 2. So
m
A sSm depth of dank
2S0
Suy--aceAreo= 33 33 m
A SSme LB
23xB =83 32 2 = 8323
6 4S 6S
L 12-0 13
checkor Suyfar loodimp
SL
3o
Surfar Areaa
13X63
35502 4 so0o Iel
Hemre OK
slude uantit
SS 6re mg
6
0X 3 lu
Total

2. lot str1tlea
Me suld
10 mylday
uany clud Iepotif d ih h 7"
916o 9
pe siy) plain Sedimenta tien 1ok setlangula
hcma olaily demand o wuler is bmLp.
he
may eeY
shapc, assmin 1he de/ensuey 7ime of
LheurS and flow hrovg 1velatily of 2oCmin
lc checlc up f ht flo al.
Volume f
Javkk 7 D T
-
/0"1/4
J60 7 m
21, 10
lerth of c ve lbrty of ffo 07.
2o (mminX 4xb6
800 ) 4 m
Vse L:
valn
pth ef fank 16666 94
48KI2
6
Pischav1
Sufatt lordr al C
pan Are
17301: 1) 14|m2
77.17A]hr/m-

3. mAY 1e1|
A Settlm i deipne.od for an
tCof soeo 1m?/H wln ptsto.ge
OF pavhcles of diamefer o 06 o 03 mm
he aPmd
ved in 4his tank Terp of worlr
2c g ef parh cles i 26
OVcfl f t soo m/H
5
1X36DO
A
38 cm|Se
O OO13 6 m Sec
136 Cmis°C
Vs
As per
Ho 2 em's eq
Ys
4 1 S - ) 4 _ 3 4 t 7
avhcle
or 0 6 mm
41e 2 &s-1) (o.06)
320
f7
: 2 2 mmS o322 cmlS
V
322
O 138
9.33-93 00
Hene all paiheler df o-06mny d 7 P

4. 03 mnm /a
pahcle
4/8 26-)(o-o3)
3x
10t70
DO69 mm Se
o030t1 Cmu
0806 x/ad
o38
797
( , -1) d2 also u ta f
-dxjo m?s.
perlacl
s
0-32 cm]s
e-o m palc
951(ais-)E0
o03
-6

5. 2LD
may/ume 20e y 21
(
Design heri2mle flo type sedime-ling lane
Df2ectanulaY shape with he folouanj dot9
fellouor Jota
) Diamete ef he particle4o se Sedtleod Ix/o
i4) Tempeatyr of water
Desin dIschare 1LMLD
Hi)
Sp:9cf slt and clay
Kine »atic
2-6
)
viscosity I3)o xlo m3ec
v Surfare lDAdin 84 lnJd for oo ls
18
(2-6F) (1x)
3/6 x1o
5 m1S
6:36 10
guT-fart lood ate is 86 for Vso-0) s
Sur-fatt Joo 4/ att fov V 86KID
864 6.86xlo
S9 2 od
Daily demand Ix10
Su1-fate Area
Surfare looel l0ooxSa2
168. 2 m
L1 e 2:
1 3 168-6
2
213 113 1C&6
L 9:2/m
L= 19um

6. A SSme e feche lph 8 free
a vols dime
mjonS are 184ng 2 8m
(opacif 84
x2 xIS= 253:92
Detensic pecrd=
253 9 2
1/24
61 h
fmc 3
Lei e eding
fo8-7it
7ikl
Wrdt 92
2
7

7. O Desiqn o clrulna
itted with merhanita) lude
f a wles tuek i t t4 yly dal
2 1illie es he u
he detensi pesied he wk f lP
S 4 I6s ad h Nept4 A/e h
n 1A bc 15Umed 3 1
uahtrly ef wte h e . endrd t/4
Volume cf nk t
7o CU
Copacity ef cirula k havny dha D
wate dept a Sive y
and
7C l l D o / x 33)
79 D o c1 D 497 )
Solvm y t1 c0
68 7 n y
a5sUm
)714 aee heard ef o A e f
iedime ratioty nk A
cf

8. (Garg 398)
Two PYI y Seffirg bosins
with a Im Side wnter dpt Sng le eflu*nt heirs
M a r o h
0 1 8
ESE (UPSe)
are m in dio mot e
loca ted the Periphoxies o he ank
wat He of 6,coo mlday, (aleuate
Swrfoct
) Vulme
) Ovtr flouo m3Imo
Datt
ii) Dete ncin toe i» Hrs
NuY
D T
F CirtuAay tnlc V=D (oo0 + o
785H)
D o-ollD t o 78S H) pK DT
D o ollD + o.785 P)
D T.
DT o e/lx24 t o
7&x21)
X24
D.T 4 HYs
Vo lm x DT.
To4a vol l 6000 x-4) 26l083
Volu of cOLe anlc 6l0 3
3 os 4Im
Sutface aTea Of ac
Vol of tanK
Daph of wrt
A)
62/ 6 2 m

9. 13 00o
Over ffe f
A 61-6 2
20 1 mm doy
wt or d ng do
Dis chony pe doy
len of wei
lea
Ph ofF wer
Ciy CiYtulav e nlc
alo g A perph ary of circulay fouk
T D 3 14x26
81
8 64m
weir load 3 000p
S9.23 mm dhy.
S1 64

10. Feb
Rol intem
Duin o
7ectangular plai Seoime tabm
Hat.
DesirN Sedimeotab*m tonk = 27 d
ay
wate lost i esludging
i n mum Si2of the parhc1e t Le rehmnd-o022 mny
)Expected remeval «fficjency of minimv sia' pahcle
701
SP 93 f pov belr = AG
)Assumeo peformance eF Jethng tank 9rt-n
Vit) kinemabc Viscos ty of water at ec- J-0) xlo
Vii) L 4'
eten hon me= 3SHrs
esind outffo 275 mJy
Desiq nacd avear fo 27 + 275 2 2906/lH
2
SAttli eleiby-V, (-1)
3
035tx/o mls
30-76 m/d
-1 n 7
A
07
219
3 a / m 2
A
2&0 6 x 24
250'|Hr
9is harte
Swrfo Juadry e e
aB0 6 X14 4
ufscehea = 307 SDm
A
21
Capait pischavy D
380 6 3T 192/ m