JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

This subject provides the knowledge of water sources, water treatment, design of

distribution system waste water treatment, and safe disposal methods. The topics of characteristics of waste water, sludge digestion are also included.

Course Outcomes

At the end of the course, the student will be able to:

• Assess characteristics of water and wastewater and their impacts
• Estimate quantities of water and waste water and plan conveyance components
• Design components of water and waste water treatment plants
• Be conversant with issues of air pollution and control

UNIT - I

Introduction: Waterborne diseases – protected water supply – Population forecasts, design period – types of water demand – factors affecting – fluctuations – fire demand – water quality and testing – drinking water standards: sources of water - Comparison from quality and quantity and other considerations – intakes – infiltration galleries.

UNIT - II

Layout and general outline of water treatment units – sedimentation – principles – design factors – coagulation-flocculation 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 – theory of chlorination, chlorine demand - other disinfection practices–Design of distribution systems–pipe appurtenances.

UNIT - III

characteristics of sewage –waste water collection–Estimation of waste water and storm water – decomposition of sewage, examination of sewage – B.O.D. Equation – C.O.D. Design of sewers – shapes and materials – sewer appurtenances, manholes – inverted siphon – catch basins – flushing tanks – ejectors, pumps and pump houses – house drainage – plumbing requirements – sanitary fittings-traps – one pipe and two pipe systems of plumbing – ultimate disposal of sewage – sewage farming –self-purification of rivers.

UNIT - IV

Waste water treatment plant – Flow diagram - primary treatment Design of screens – grit chambers – skimming tanks – sedimentation tanks – principles of design – Biological treatment – trickling filters – ASP– Construction and design of oxidation ponds. Sludge digestion – factors effecting – design of Digestion tank – Sludge disposal by drying – septic tanks working principles and design – soak pits.

UNIT - V

Air pollution– classification of air pollution– Effects air pollution–Global effects–Meteorological parameters affecting air pollution–Atmospheric stability–Plume behavior –Control of particulates – Gravity settlers, cyclone filters, ESPs–Control of gaseous pollutants–automobile pollution and control.

TEXT BOOKS:

• 1. Environmental Engineering by H. S Peavy, D. R. Rowe, G. Tchobanoglous, McGraw Hill Education (India) Pvt Ltd, 2014
• 2. Environmental Engineering by D. P. Sincero and G.A Sincero, Pearson 2015.
• 3. Environmental Engineering, I and II by BC Punmia, Std. Publications. R18 B.TECH CIVIL ENGG. III YEAR
• 4. Environmental Engineering, I and II by SK Garg, Khanna Publications.
• 5. Environmental Pollution and Control Engineering CS Rao,Wiley Publications

REFERENCES:

• 1. Water and Waste Water Technology by Steel, Wiley
• 2. Waste water engineering by Metcalf and Eddy, McGraw Hill, 2015.
• 3. Water and Waste Water Engineering by Fair Geyer and Okun, Wiley, 2011
• 4. Water and Waste Water Technology by Mark J Hammar and Mark J. Hammar Jr.Wiley, 2007.
• 5. Introduction to Environmental Engineering and Science by Gilbert Masters, Prentice Hall, New Jersey.
• 6. Introduction to Environmental Engineering by P. Aarne Vesilind, Susan M. Morgan, Thompson /Brooks/Cole; Second Edition 2008.
• 7. Integrated Solid Waste Management, Tchobanoglous, Theissen & Vigil. McGraw Hill Publication R18 B.TECH CIVIL ENGG. III YEAR