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GP315
PLANT UTILITY
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Quiz (minimum 4) 30%
Theory Test (minimum 2) 40%
End-of-Chapter (minimum 3) 30%
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WATER TREATMENTWATER TREATMENT
SYSTEMSYSTEM
AZMIR IQBAL BIN IBRAHIM
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All natural waters contain suspended orAll natural waters
contain suspended or
dissolved inorganic or organic chemicalsdissolved inorganic or
organic chemicalsto some degree. Whether they areto some degree.
Whether they are
present in high enough concentration topresent in high enough
concentration to
be considered as impurities depends onbe considered as
impurities depends onthe water use.the water use.
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Remove all the impuritie i! "ater to e!ure the "aterRemove all
the impuritie i! "ater to e!ure the "ateri uita#le $or the i!te!%e%
ue&i uita#le $or the i!te!%e% ue&
The impuritie 'a! #e 'lai$ie% a(The impuritie 'a! #e 'lai$ie%
a(
OBJECTIVEOBJECTIVE
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INTA)* MI+ING P,INT A*RATI,N-*.IM*NTATI,N
TAN)
/ILT*R0HL,RIN*
-T,RAG*
0HL,RIN*
MI+ING P,INTAT*R TAN)0,N-UM*R
ALUM AN. LIM*
PR,00*-- AN.-T,RAG*
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MIXING POINT
2 Alum 8alumi!ium ul$at9 a!% Lime 80a,9 a%%e%
to the ra" "ater&
2 The! the "ater "ill #e tra!$erre% to aeratio!
ta!&
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AERATION TANK
2 The pro'e o$ #ri!7i!7 "ater a!% air i!toThe pro'e o$ #ri!7i!7
"ater a!% air i!to'loe 'o!ta't to remove or mo%i$6'loe 'o!ta't to
remove or mo%i$6'o!titue!t i! the "ater&'o!titue!t i! the
"ater&
2 /u!'tio! to remove the air a!% 7ae $rom the/u!'tio! to remove
the air a!% 7ae $rom the"ater&"ater&
2 *:ample( 0,; a!% h6%ro7e! uphi%e*:ample( 0,; a!% h6%ro7e!
uphi%e
2 A%%i!7 o:67e! i!to the "aterA%%i!7 o:67e! i!to the "ater
2 Remove u!"a!te% o%our $rom "ater&Remove u!"a!te% o%our
$rom "ater&
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SE!MENTAT!"N TAN#
-e%ime!tatio! pro'ee are ue% to 'lari$6 tur#i%a!%
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2 =-'raper> "ill puh the $lo' to the hopper at the
#ottom o$ the ta!&
2 *ve!tuall6 o!l6 'lea! "ater "ill remai! i! the
ta!&
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/L,00ULATI,N
The "ater treatme!t pro'e $ollo"i!7The "ater treatme!t pro'e
$ollo"i!7coagulationcoagulation; "hi'h ue 7e!tle tirri!7 to #ri!7;
"hi'h ue 7e!tle tirri!7 to #ri!7
upe!%e% parti'le to7ether o the6 "ill $ormupe!%e% parti'le
to7ether o the6 "ill $orm
lar7er; more ettlea#le parti'le 'alle%lar7er; more ettlea#le
parti'le 'alle% flocfloc.
2 /lo' "hi'h i #i7 a!% heav6 "ill evetuall6 ettle %o"! i!
ettli!7 ta!&
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$!%TRAT!"N
/ilter are ue% i! "ater treatme!t to
remove relativel6 lo" 'o!'e!tratio! o$
upe!%e% matter "he! a hi7h 'larit6 i
!ee%e%&
The6 are 'o!tru'te% i! a variet6 o$
material 8'o!'rete; teel; $i#er7la; et'&9;
are either ope!?7ravit6 or e!'loe%
preure t6pe; a!% $or %o"!$lo" or up$lo"
$ilteri!7&
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The $ilter me%ia i t6pi'all6 ili'a a!%; or a
'om#i!atio! o$ a!% a!% a!thra'ite&
The me%ia i ele'te% a!% i@e% $or the parti'ularappli'atio! a!%
per$orma!'e %eire%&
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i!ter "ouse - #here fina! $!arifi$ation taes p!a$e
Water in
Filter
Rapid Sand
Filters
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&'%"R!NE M!(!N) *"!NT
2 A%%i!7 'hlori!e to the "ater&
2 0hlori!e "ill remove all the %a!7erou
#a'teria i! the "ater
2 The "ater i !o" pota#le
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Treate% ater PumpTreate% ater Pump
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Lo"er ReervoirLo"er Reervoir
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*levate% Reervoir*levate% Reervoir
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Tha! You&&
