Sewer Designing Plant (1)ppt

8/17/2019 Sewer Designing Plant (1)ppt

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PROJECT TOPIC - DESIGN OF

SEWER FOR PROPOSED PLAN OFUNIVERSITY

PRESENTED BY-VIBHU KUMAR VERMA 1202800104

NISHI VERMA 1202800067

SHAILESH YADAV 1202800098

ROHIT KUMAR MISHRA 1202800091

VIKRAM YADAV 1202800107


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SEWER DESIGNING PLANT

Sewer system Earlier –conservancy system

Modern- sewer flow


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INTRODUCTION• SEWAGE TREATMENT PLANT IS THE PROCESS O

REMOVING CONTAMINANTS ROM WASTEWATER !

HOUSEHOLD SEWAGE AND DOMESTIC WASTES"

• SEWAGE IMPLIES THE COLLECTING O WASTEWATER

ROM OCCUPIED AREAS AND CONVEYIING THEM TO

SOME POINTS O POINTS O DISPOSAL"


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STATEMENT OF THE PROBLEMS

Health hazards to sweepers and other

residents

Sometimes pollute the city’s watersupplies

Disposed of in the morning , once a

day.Pungent smells may continue to pollute

the surroundings for the entire day


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B.TECH

COURSE

NO. OF SEATS IN EACH YEAR(1,2,3,4)

C"E" 120 120 120 120

M.(. "#$ "#$ "#$ "#$

C.S. "#$ "#$ "#$ "#$

).*. "#$ "#$ "#$ "#$

(.C. "#$ "#$ "#$ "#$

(.( "#$ "#$ "#$ "#$

Chem. "#$ "#$ "#$ "#$

!eron. "#$ "#$ "#$ "#$


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DIPLOMA(Branch

name)

Number of seats in each year(1,2,3,)

C"E" 120 120 120

M.(. "#$ "#$ "#$

C.S. "#$ "#$ "#$

).*. "#$ "#$ "#$

(.C. "#$ "#$ "#$

(.( "#$ "#$ "#$


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M"TECH$%&'()* ('+,

N.+%,& / ,' 3( ,')* ,'&$1!2

C"E" 120 120

M.(. "#$ "#$

C.S. "#$ "#$

).*. "#$ "#$

(.C. "#$ "#$

(.( "#$ "#$

Chem. "#$ "#$

!eron. "#$ "#$


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WATER CONSUMPTION AND SEWERAGE GENERATEDS" N/" D,)&353/( N/" O

%.3"

P/5" O

,')* %.3"

)/(.+5"

&',

$5)

T/' ',&

)/(.+,

$).+,)

W', ',&

,(,&',

$).+,)

" ! bloc+ " "#$ - /.012"$%- .2"$%-

# C bloc+ " -0$ - #.2"$%- #2"$%-

D bloc+ " /$$ - ."#2"$%- #.2"$%-

- ( bloc+ " 0-$ - #2"$% "./2"$%

& bloc+ " -0$ - #.2"$%- #2"$%-

/Hostel

"$$$ ""./2"$% ".#-2"$%

1 'estaurant # $ 1$3seat -.$2"$% .#-2"$%

0 'eception " "$$ - .#2"$% -."/2"$%

4 Computer central 5 lib. " "$$ - .#2"$% -."/2"$%

"$ !uditorium " #$$$ " .-12"$%- #.112"$%-

"" Hospital " "$$ -$3bed .42"$%-

."2"$%-

"# 6ursing home 5medical 7uarter

" -$ " /.#2"$% 2"$%

" Stadium " "$$$ " ".02"$%- ".02"$%-

"- &aculty 7uarter " 0$ " ".#2"$%- "$%-

" Staff 7uarter " "$ " #.-2"$%- ".012"$%-

"/ an+ " 1 - .42"$% ."#8"$%


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GRAPH USED IN CALCULATION


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LINE GROUND PEAK LOW DIAMETER SLOPE < =


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LINE GROUND

WATER

INILTRATIO

N

$+:;

PEAK LOW

$+:;

DIAMETER

$++

SLOPE / ".$##1# ".$#/ #.1 # #.1 / ".04- # ".0-- / #.$# # #.$# / .#/$ # .#/ / 0.$/0 # 0.$/0


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LINE =;


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LINE LOCATION MANHOLE GROUND

LEVEL O

STARTING

MANHOLE

LENGTH POPULATION SEWER LOW

$+:;

&'9M *9 !DD* P'(:

1 A)'=S

H9S*(= %"

= ""." "" "$$ "#$ "$$$ ".#


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LINE GROUND

WATER

INILTRATION

$+:;

PEAK LOW

$+:;

DIAMETER

$++

SLOPE # $.$""0#

0 #.04/ $.$"/$ #$$ $.$$0 #.4#/ $.$"1 #$$ $.$$0 #.4#/ $.$"//14 #$$ $.$$0 #.4#


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LINE =;


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LINE GROUND WATER PEAK LOW DIAMETER SLOPE


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LINE GROUND WATER

INILTRATION

$+:;

PEAK LOW

$+:;

DIAMETER

$++

SLOPE / $.$"1#0 #$$ $.$$0 #.4#/ $.$"0# #$$ $.$$0 #.4#/ $.$"000 #$$ $.$$0 #.4#/ $.$"00" #$$ $.$$0 #.4## $.$"4"4

"0 #.04


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LINE =;


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DESIGN OF MANHOLE

According to manual , calculated data for

manhole main line is :

No. of manholes Diameter of each manhole(mm)

53 900-1800


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TREATMENT PLANTRAW SEWAGE

SCREEN

GRIT CHAMBER

LAGOON WITH AERATORS

EFFLUENT


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DESIGN OF TREATMENT PLANT

D,3( / G&3 )*'+%,& Ma2imum flow Eelocity F:h G $. m3sec

6ow settling Eelocity F :s G d F * 1$ G

$." F I #$ 1$ G

$.$# m3sec

F where d dia of particle and * temperature of

atmosphere G

!rea sewage flow J :h $.$#- J $. $.0 m#

!ssuming water depth " m then

@idth F G I " .0

So $.- m


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Fassume $. m water depth +ept for free board G

6ow oEer all depth D " m $. m ". m

Detention time water depth aboEe the basin J settling

Eelocity

" J $.$# $ sec

So length of tan+ :h I Detention time

$. I $

" m


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D,3( / %'3(

*he 7uantity of sewage treated per day no. of persons 2

sewage generated by each person

$$$ I "#$

/$$$$$ liters

$./ M=

!ssuming organic loading $$ +g 3 hac. 3 day

9D $$ mg 3 litre

9D content 3 day $./ I $$ "0$ +g 3 day

6ow surface area "0$ J $$ $./ hac. /$$$ m#

6ow assume the ratio between length to width # *hen # I /$$$

"1. m


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!nd = m

assume depth of tan+ ".# m

6ow proEided capacity m I "1. m I ".#m

1 m,

Detention time capacity J sewages flow3day

1 J /$$ ". days or # days


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!('!*9'S

Si2 aerators are used.

(ach of the aerator coEers "# s7. m area.


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REMOVAL MECHANISM


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TREATMENT PROCESS ARE

OTEN CLASSIIED AS>-

PRELIMINARY TREATMENT

Screening

Grit chamber

Skimming tank PRIMARY TREATMENT

SECONDARY TREATMENT

Activated sludge

Aerated lagoon

Aerobic granulation TERTIARY TREATMENT

Trickling filter


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WHAT?S IN SEWAGE

WATER

URINE

TOXIC CHEMICALS

TOILET PAPER

ORGANIC WASTES

SOAP

FOOD WASTE

OIL AND GREESE

BACTERIA AND VIRUSES


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THREE MA@OR STEPS

PRIMARY -MOSTLY MECHANCAL

-REMOVES BIG STUFF

SECONDARY

-PHYSICA AND BIOLOGICAL-DECOMPOSE OF ORGANIC MATTER

TERTIARY

-MOSTLY CHEMICAL AND PHYSICAL

-KILLS PATHOGENS-TRIES TO REMOVE TOXIC CHEMICALS


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PRELIMINARY PROCESS

SCREENING:-

SCREENING IS A PROCESS OF RETAIN SOLID WASTES FOUND IN THE

INFLUENT WASTEWTER TO THE TREATMENT PLANT.

THERE ARE TWO TYPES OF SCREENING

MANNUALY OPERATED

AUTOMATICALLY OPERATED

COARSE SCREEN(BAR RACKS)

FINE SCREEN

MICRO SCREEN


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GRIT CHAMBER


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PRIMARY PROCESSSEDIMENTATION TANK

SETTLING PROCESS IS DONE IN SEDIMENTATION TANK:-

PURPOSE:-

. TO REMOVE COARSE DISPERSED PHASE

. TO REMOVE COAGULATED AND FLOCCULATED IMPURITIES.

. TO SETTLE THE SLUDGE.

PRINCIPAL:-

SUSPENDED SOLID PRESENT IN WATER HAVING SPECIFIC GRAVITY

GREATER THAN THAT OF WATER TENDS TO SETTLE DOWN BY GRAVITY.

BASIN IN WHICH THE FLOW IS RETARDED IS CALLED SETTLING TANK


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DESIGN DETAIL O SEDIMENTATION TANK 1. DETENTION PERIOD: FOR PLAIN SEDIMENTATION- TO 4

H!AND FOR COAGULATED SEDIMENTATION-2 TO 2."H.

2. VELOCITY OF FLOW:-#$ CM%MM

. TANK DIMENTION:-TO ":1.GENERALLY L&$M ' MAX. 1$$M.

4. BREADTH (M TO 1$M. FOR CIRCULAR:-DIA.#($

M)GENERALLY 2$ TO 4$ M*

". DEPTH 2." TO " M)M*

(. SURFACE OVERFLOW RATE: FOR PLAIN SEDIMENTATION

12$$$ TO 1+$$$MLD, FOR THOROUGHLY FLOCCULATED

WATER 24$$$ TO $$$$ MLD TANK AREA.

. SLOPES : RECTANGULAR 1 TOWARDS INLET AND CIRCULAR

+.

G S O S


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ADVANTAGES OF SEWER

TREATMENT

(a)Upgrading the quality of life

(b) Upgrading the quality of life

(c)Upgrading the quality of life(d) Saving of money

(e)Economic development and tourism

(f) Flooding incidences

(g)Standard of living


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THANKY

OU

Sewer Designing Plant (1)ppt

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