water! water! how safe?
DESCRIPTION
WATER! WATER! HOW SAFE?. INTRODUCTION. Water is the fountain head of life. For the development of human societies, water should be available in the acceptable quantity and quality. NEED. In city everybody uses packaged drinking water. - PowerPoint PPT PresentationTRANSCRIPT
WATER! WATER! HOW SAFE?
INTRODUCTION
Water is the fountain head of life. For the development of human societies,
water should be available in the acceptable quantity and quality.
NEED
In city everybody uses packaged drinking water.
To compare packaged drinking water requirement of Urban and Rural people.
METHODOLOGY
Survey in Varthur village - 22kms away from the city.
Analysis of water samples from bore well and public taps.
Data collected
Out of 72 houses, 43 houses use packaged water.
10 houses are using aqua guard.
Hypotheses
People in Varthur prefer packaged drinking water because tap water is hard and contaminated.
Water sampling parameters Obtained Values Permissible Limits
Sampling Point
Bore well
Tap
Calcium(mg/L) 125.85 32.06 75
Hardness(mg/L) 761.2 733.2 -250/mg/L
Chloride(mg/L) 665.41 748.91 250
Turbidity(NTU) <10 <10 Should not be greater than 10 NTU
Phosphate(mg/L) 0.053 0.025 0.03
Sodium(mg/L) 238 420 200
Potassium(mg/L) 9 197 No limit specified
DATA ANALYSIS
Water is hard High concentration of Sodium and Chloride Bore well sample shows high concentration
of Calcium and Phosphate
RESULT
Proved villagers’ statement
CONCLUSION
Drinking water treatment plant to be established.
Water sources should be protected.