water for allf
TRANSCRIPT
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WATER FOR ALL?
Dr. Imran Shaikh
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Water Pre Test What is hard water?
What is pollted water?
What is !ontaminated water?
"ow will #o assess $alit# o% water?
What are !ommon methods %or pri%i!ation
o% water at hosehold& !ommnit# le'el? What are !ommon water (orne diseases
in Pakistan?
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WATER FOR ALL
What is sa%e water?
) Pleasant to taste
) Free %orm harm%l !hemi!al s(stan!es
) Free %rom patho*eni! or*anisms
) +sa(le %or domesti! prpose
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Water $alit# and standards
Ph#si!al standards
,hemi!al standards
-i!ro(iolo*i!al standards
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What do #o look %or in Ph#si!al
standards ?
,olor
Odors
Taste
Rea!tions
Tr(idit# Radiolo*i!al $alit#
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.In !hemi!al standards ?
To/i! s(stan!es as lead0 !admim0
arseni!0 mer!r#
S(stan!es as1
) Florine
) 2itrates
) Pol#n!lear aromati! h#dro!ar(ons
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What is hardness o% water?
It is e/pressed as milli3e$i'alents o%hardness prod!in* ions 4,a0 50",o67
,lassi%i!ation o% water
So%t 838.9 me$&l
-oderatel# hard :3;.9 me$&l
"ard 63 and a(o'e
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.in mi!ro(iolo*i!al standards
Presmpti'e !oli%orm !ont
,olon# !ont
Test %or %e!al strepto!o!!i
Patho*ens
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"ow do #o pri%# water?
On lar*e s!ale1
) Stora*e
) Filtration
) ,hlorination
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Water pri%i!ation
On domesti! le'els1 oilin*
Distillation
,hemi!als1) lea!hin* powder
) ,hlorine ta(lets
) Iodine) Potassim perman*anate
)Alm
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Pakistan poplation !o'era*e o%
water and sanitation +RA2
water sppl# @9
sanitation >;
R+RAL
water sppl#
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Water Post Test What is hard water?
What is pollted water?
What is !ontaminated water?
"ow will #o assess $alit# o% water?
What are !ommon methods %or pri%i!ation
o% water at hosehold& !ommnit# le'el? What are !ommon water (orne diseases
in Pakistan?