Course Learning Objectives:
The course will address the following:
Outline planning and the design of water supply systems for a community/town/city and
selection of source based on quality and quantity
Design of water treatment plant for a village/city
Impart knowledge on design of water distribution network
Design of sewers and plumbing system for buildings
Design of Sewage Treatment Plant
Course Outcomes:
Upon the successful completion of this course, the students will be able to:
Select a source based on quality and quantity and Estimate design population and water demand
Design a water treatment plant for a village/city
Design a sewer by estimating DWF and Strom water flow and plumbing system for buildings
Design a Sewage Treatment Plant for a town/city.
UNIT–I
Introduction: Importance and Necessity of Protected Water Supply systems, Water borne diseases,
Flow chart of public water supply system, Role of Environmental Engineer.
Water Demand and Quantity Estimation: Estimation of water demand for a town or city, Per
capita Demand and factors influencing it - factors affecting water demand, Design Period,
Population forecasting.
Sources of Water: Lakes, Rivers, Comparison of sources with reference to quality, quantity and
other considerations- Ground water sources: springs, Wells and Infiltration galleries, Characteristics
of water– Physical, Chemical and Biological characteristics and WHO guidelines for drinking water
- IS 10500 2012 - Water quality standards for Agriculture, Industries and Construction.
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UNIT–II
Treatment of Water: Treatment methods: Theory and Design of Sedimentation, Coagulation,
Filtration. Disinfection: Theory of disinfection-Chlorination and other Disinfection methods.
Removal of color and odors- Removal of Iron and Manganese - Adsorption- Fluoridation and
deflouridation–Reverse Osmosis- Solar stills- Freezing
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UNIT–III
Collection and Conveyance of Water: Factors governing the selection of the intake structure,
Conveyance of Water: Gravity and Pressure conduits, Types of Pipes, Pipe Materials, Pipe joints,
Design aspects of pipe lines, Design of economical diameter of pumping main, HP of pump and
monthly expenditure for an apartment and a village. Laying and testing of pipe lines- Capacity of
storage reservoirs, Mass curve analysis.
Distribution of Water: Methods of Distribution system, Layouts of Distribution networks, Water
main appurtenances - Sluice valves, Pressure relief valves, air valves, check valves, hydrants, and
water meters–Ideal water supply system. Case studies.
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UNIT – IV
Sewerage: Estimation of sewage flow and storm water drainage – fluctuations – types of sewers -
design of sewers.
Sewer appurtenances – cleaning and ventilation of sewers. Sewage pumps.
House Plumbing: Systems of plumbing-sanitary fittings and other accessories– one pipe and two
pipe systems – Design of drainage in Gated communities, Apartments and Hotels.
Septic Tank - working Principles and Design
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UNIT – V
Sewage characteristics –Characteristics of sewage - BOD equations. ThOD, COD and BOD.
Treatment of Sewage: Primary treatment. Secondary treatment: Activated Sludge Process,
principles, designs, and operational problems. Oxidation ponds, Trickling Filters – classification –
design, operation and maintenance problems. RBCs. Fluidized bed reactors –Anaerobic digestion of
sludge, Sludge Drying Beds.
Ultimate Disposal of sewage: Methods of disposal – disposal into water bodies-Oxygen Sag Curve-
Disposal into sea, disposal on land, Crown corrosion, Sewage sickness. Effluent standards.
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Text Books
1. Environmental Engineering – Howard S. Peavy, Donald R. Rowe, Teorge George
Tchobanoglus – Mc-Graw-Hill Book Company, New Delhi, 1985.
2. Rural Municipal and Industrial water management, KVSG Murali Karishna, Environmental
Protection Society, Kakinada, 2021.
3. Industrial Water and Wastewater Management, K.V.S.G. Murali Krishna, Paramount
Publications, Visakhapatnam, 2018.
4. Elements of Environmental Engineering – K. N. Duggal, S. Chand & Company Ltd., New
Delhi, 2012.
References
1. Water Supply Engineering – P. N. Modi.
2. Water Supply Engineering – B. C. Punmia
3. Water Supply and Sanitary Engineering – G. S. Birdie and J. S. Birdie
4. Environmental Engineering, D. Srinivasan, PHI Learning Private Limited, New Delhi, 2011.
5. Environmental Engineering, Ruth F. Weiner and Robin Matthews – 4th Edition
Elsevier,2003
6. Environmental Engineering, D. Srinivasan, PHI Learning Private Limited, New Delhi, 2011.