SECTION-A
Unit-I: Collection of sewage
Importance of sanitation, Systems of sewerage - separate, combined and partially separate. Quantity of sanitary
sewage and variations. Shapes of sewer- circular and egg shaped. Design of sewers, self cleansing Velocity and
slopes, Construction and testing of sewer lines. Sewer materials, joints and appurtenances.
Unit –II Sewage collection from houses and buildings, general principal for design of a sanitary plumbing system, Traps
function and types, System of plumbing, testing of house sewer, sanitary fittings and other accessories, ventilation of
house drainage, waste water recycling in building
SECTION-B
Unit – III
Quality parameters- BOD, COD, Solids, D.O., Oil & Grease, tests on quality parameters, Sewage
disposal , type relative advantage and disadvantage of various sewage disposal system Indian,
Standards for disposal effluents into inland surface sources and on land. Bangalore method and Indore
method of sewage disposal. Disposal of sewage by dilution - self-purification of streams. Sewage disposal by
irrigation (Sewage treatment).
Unitv-VI
Digestion and disposal of primary and secondary sludge – Moisture content, sludge digestion process,,
Factors affecting, sludge digestion tanks, disposal of digested sludge
SECTION-C
Unit-V: Sewage Treatment
Objectives of sewage Treatment, classification of treatment process, Preliminary treatment -screening
and grit removal units. Skimming tanks, Theory and design aspects of sedimentation, coagulation,
merit and demerits of coagulation
Secondary treatment- Biological Filtration – Trickling Filter, High rate Trickling Filter advantage and
disadvantages, miscellaneous type of filter, Humus tank, activated sludge process & its modifications,
aeration tanks, secondary sedimentation tanks
Unit VI
Stabilization pond, oxidation pond, Oxidation ditches, aeration lagoons, anaerobic stabilization units -, septic
tank and Inhoff tank. Sludge Digestion UASB process sequence and efficiencies of conventional treatment
units, Process Design of a complete sewage treatment plant, Examples
SECTION-D
Unit VII
Noise Pollution- Definition and introduction, Effect of Noise, characteristics of sound and it’s measurement, level of noise ,
noise rating system and standards, source of noise their levels and controls
Unit VIII
Air pollution –Definition of air pollution, Effects of air pollution, Dispersion of air pollution in atmosphere, Dispersion
models and equations, Air pollution controls