JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Introduction: Water Requirements, Sources of Water, Water Supply Considerations, Water Quality, Drinking Water Standards, Secondary Standards-Toxic Water Pollutants, Quality Criteria for Surface Water, Purpose of Water Treatment - Selection of Water Processes, Water-Processing Sludges.

UNIT - II

Conventional Treatment Processes: Sedimentation, Type of Sedimentation, Zone Settling, fitration, Gravity Gnadular-Media Fitration, Head Losses, Back Washing and Media Fluidization - Pressure Filters - Slow Sand Filters, Coagulation and Flocculation Coagulants, Coagulants, Coagulant Aids, Rapid Mixing Devices, Disinfection, Disinfection Methods, Cl2 Handling and Dosage, Control of Thms, Fluoridation, Defluoridation.

UNIT - III

Water Softening: Lime Soda Process Variations-Ion Exchange Softening and Nitrate Removal. Iron and Manganese Removal: Iron Corrosion, Water Stabilization-Cathodic Protection.

UNIT - IV

Taste and Odour: Methods for Control, Aeration, Adsorption, Control of Algae Growth. Reduction of Dissolved Salts: Distillation, Reverse Osmosis, Electrodialysis.

UNIT - V

Transportation and Distribution of Water: Aqueducts, Hydraulic Consideration, Design of Transportation System, Distribution System Configuration, Distribution System Design and Analysis, Distribution Reservoirs and Service Storage.

REFERENCES:

• 1. Viessman Jr., Mark J. Hammer: Water Supply and Pollution Control
• 2. Peavy H.S., Row D.R. and Tchobanaglous G.: "Environmental Engineering", Mc Graw Hill International Edition, 1988.
• 3. Fair, Gair, Okun: Water Supply Engineering, John Wiley, 1990. M. Tech – I Year – I Sem. (Env. Engg.) WATER AND WASTE WATER LAB (Lab - I) Water & Waste Water samples
• 1. pH & Solids Analysis
• 2. Aciditiy& Sulfate Ions
• 3. Dissolved Oxygen, Chlorides & Hardness
• 4. Standard Curve, Synthetic Solution Preparation and Glassware Washing and Microbial Decontamination Procedure
• 5. Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD)

REFERENCES:

• 1. AWWA, WEF, APHA, 1998, Standard Methods for the Examination of Water and Wastewater
• 2. Sawyer, C.N., McCarty, P.L., and Parkin, G.F. 2000. Chemistry for Environmental Engineering 4th Edition. Tata McGraw-Hill Publishing Company Limited. M. Tech – I Year – I Sem. (Env. Engg.)