159

G V P College of Engineering (Autonomous) 2016

Civil Engineering

ENVIRONMENTAL ENGINEERING

Course Code: 15CE1124 L T P C3 0 0 3

Pre-requisites:Chemistry, Environmental Studies, Fluid Mechanics, EnvironmentalSanitation.

Course Outcomes:

At the end of the Course, the Student will be able to:

CO 1 Assess the quality and quantity of water requirements for acity/town and identify different components of a water supplyproject.

CO 2 Design different treatment units and distribution systems forwater supply

CO 3 Analyse the characteristics, collection, conveyance anddisposal of wastewater

CO 4 Design of sewers and appurtenances

CO 5 Design of secondary and biological treatment units

UNIT-I (10 Lectures)WATER DEMANDS- STANDARDS -SOURCES:

Aspects of Environmental Engineering – Protected water supply –Need – Water demands – Fluctuations – Design period-Populationforecast – Water quality – Drinking water standards- Testing andsignificance – Quality and Quantity and other considerations of surfaceand sub-surface sources – Yield calculations – Intake works – Storagereservoir capacity – Systems of water supply – Requirements –Detection of leakages – Selection of pump – Economical diameterof pumping main.

Semester - V

160

G V P College of Engineering (Autonomous) 2016

Civil Engineering

UNIT-II (10 Lectures)TREATMENT OF WATER AND DISTRIBUTION:

Water treatment, conventional treatment flow diagram –Sedimentationtypes – Principles – Design factors – Coagulation –Design ofClariflocculator – Filtration – Slow, Rapid gravity filters and Pressurefilters – Design principles-Disinfection –Chlorination–Distributionsystems– Layouts – Design- and analysis, Hardy Cross method andEquivalent Pipe method. Valves – Other appurtenances.

UNIT-III (10 Lectures)WASTE WATER MANAGEMENT:

Introduction: Waste water treatment system – Definitions of terms– Collection and conveyance of sewage – Sewage flow rates – Stormwater – Characteristics of sewage– Cycles of decay – BOD- COD– Ultimate disposal of sewage.

UNIT-IV (10 Lectures)DESIGN OF SEWERS AND PRIMARY TREATMENT:

Layouts – Design of sewers – Sewers appurtenances – Sewage pumping-Conventional sewage treatment – Primary treatment: - Screens –Grit chamber – Sedimentation tanks – Design principles. Septic tanksand Imhoff tanks - rural latrines – House plumbing – Appurtenances.

UNIT-V (10 Lectures)SECONDARY BIOLOGICAL TREATMENT:

Secondary treatment – Biological treatment – Trickling filters –Activated Sludge Process – Low cost waste treatment methods –Design of Oxidation ponds – Aerobic and Anaerobic lagoons. SludgeDigestion – Design principles – Disposal.

TEXT BOOKS:1. G.S. Birdi, “Water Supply and Sanitary Engineering”,

DhanpatRai & Sons Publishers, 8th Edition, 2010.

2. B.C. Punmia, “Water Supply Engineering”, Vol. 1, “WasteWater Engineering Vol. II”, 2nd Edition, Ashok Jain &ArunJain, Laxmi Publications Pvt. Ltd, New Delhi, 2008.

Semester - V

161

G V P College of Engineering (Autonomous) 2016

Civil Engineering

3. K.N. Duggal, “Elements of Environmental Engineering”,7th Edition, S. Chand Publishers, 2010.

REFERENCES:

1. Hammer and Hammer “Water and Wastewater Technology”,4th Edition, Prentice Hall of India, 2003.

2. Fair, Geyer and Okun, “Water and Waste Water Engineering”,3rd Edition, Wiley, 2010.

3. Metcalf and Eddy, “Waste Water Engineering”, 3rd Edition,Tata McGraw Hill, 2008.

4. Howard S. Peavy, Donard Z. Rowe, George Technobanoglous,“Environmental Engineering”, 1st Edition McGraw –HillPublications, Civil Engineering Series, 1985.

Semester - V