WATER QUALITY PARAMETERS ON BASIS OF PHYSICAL,CHEMICAL AND BACTERIOLOGIAL.

1. WELCOME DEVESH SHARMA PREPARED IN ORDER TO CONTROL POLLUTION

2. PHYSICAL, CHEMICAL & BACTERIOLOGICAL CONTAMINATION OF WATER AND WATER QUALITY STANDARDS

6. Aquifiers

9. BUREAU OFINDIAN STANDARDS IS 10500-1991 Parameters Disirable limit Permissible limit Colour Hazen unit 5 25 Turbidity-NTU 5 10 pH 6.5-8.5 6.5-8.5 Hardness (as CaCO 3 )mg/l 0.3 1 TDS 500 2000

10. BUREAU OFINDIAN STANDARDS IS 10500-1991 Parameters Disirable limit Permissible limit Nitrate mg/l 45 45 Chloride mg/l 250 1000 Flouride mg/l 1 1.5 Arsenic mg/l 0.05 0.05 Aluminium mg/l 0.03 0.2

16. Battery acids <1.0 Milk 6.7 Carbonated Beverages 2 – 4 Rain water 6.5 Lemon juice 2.3 Blood 7.5 Orange juice 4.2 Sea water 8.0 Vinegar 3 Ammonia solution 11.3 Domestic sewage 6.5-8.5 Ground water 7.5-8.5

28. Essential bacteriological Standards Characteristics Number / 100 ml Treated water in distribution system Feacal coliform zero Total coliform not more than 10 Total coliform should not be detectible in two consecutive samples

30. Common problems contd Visible effects Reasons water turns black,smell Waste water Acidic taste Low pH Alkaline taste High pH Boiled Rice hard and yellow High Alkalinity White deposits on boiling Hardness

31. Common problems Visible effects Reason Iron taste, change in colour after exposure to atmosphere, change in colour of cloths,utensils Oily appea- rance on top of water body Iron Soap not lathering hardness Brownish black streaks on teeth `Fluride Growth of Algae Nitrate, phosphate Fish kills Low pH less DO Salty taste chloride

32. Thank you