UNIT II
LAYOUT AND GENERAL OUTLINE OF WATER TREATMENT
UNITS – SEDIMENTATION, UNIFORM
SETTLING VELOCITY– PRINCIPLES – DESIGN FACTORS –
SURFACE LOADING – JAR TEST –
OPTIMUM DOSAGE OF COAGULANT – COAGULATIONFLOCCULATION, CLARIFIER DESIGN – COAGULANTS –
FEEDING ARRANGEMENTS. FILTRATION – THEORY –
WORKING OF SLOW AND RAPID GRAVITY FILTERS –
MULTIMEDIA FILTERS – DESIGN OF FILTERS – TROUBLES
IN OPERATION COMPARISON OF FILTERS –
DISINFECTION – TYPES OF DISINFECTION – THEORY OF
CHLORINATION – CHLORINE DEMAND – OTHER
DISINFECTION TREATMENT METHODS.
DISTRIBUTION SYSTEMS – TYPES OF LAYOUTS OF
DISTRIBUTION SYSTEMS – DESIGN OF
DISTRIBUTION SYSTEMS – HARDY CROSS AND
EQUIVALENT PIPE METHODS – SERVICE
RESERVOIRS – DETERMINATION OF STORAGE CAPACITY.