Unit -1: Collection and conveyance of Sewage
Components of wastewater flows, waste water water sources and flow rate. Variation in flow rates, waste water constituents, Characteristics of municipal waste water, Quantity of storm water, Ground water infiltration.
Sewerage system, layout, types of sewers, collection system. Appurtenances Design of sanitary and storm water sewers, Maintenance of sewerage systems.
Sewage and sludge pumping, location, capacity and types of pumps, pumping station design.
Unit-2: Unit Operations
Primary treatment - screening, comminuting, grit removal, oil and grease trap, chemical precipitation.
Secondary treatment – Activated sludge process, Process design and operating parameters , modification of ASP , operational problems .Trickling filter , classification , process design considerations . Secondary Clarifications.
Unit -3: Anaerobic treatment and Low cost treatment
Fundamentals of anaerobic treatment, sludge characteristics, Treatment and disposal, Concept of different anaerobic reactors.Low cost waste water treatment methods- Principle of waste stabilization pond.Design and operation of oxidation pond, aerobic and anaerobic lagoons, Aerated lagoon,
Oxidation ditch, septic tank.Selection of alternative treatment process flow sheets. Concept of recycling of wastewater(gray water and brown water.)
Unit-4: Disposal of waste water
Disposal of waste water stream pollution, Self purification, DO sag curve, Streeter Phelp's Equation, Stream classification, disposal on land, effluent standards for stream and land disposals. Introduction to environmental impact assessment, Assessment and Environmental legislation.
Unit -5: Solid Waste Disposal
Solid waste management – Solid waste definition, Types, sources, characteristics. Functional outlines- storage, collection, processing techniques, Methods of treatments of solid waste-Composting, Incineration, Pyrolysis and sanitary land filling. Concept of hazardous waste management.
Unit -6: Air Pollution
Air Pollution- Definition, Sources and classification of pollutants, Effects. Introduction to meteorological aspects of control of industrial air pollution- Settling Chamber, Bag filter, Cyclone separator, Scrubbers, Electrostatic precipitators. Control of vehicular air pollution. Air quality standards.
• Term Work:-
Term work shall consist of the following:-
(A) List of Experiments (Analysis of Waste Water)
1. pH Value.
2. Total Solids
3. Biochemical Oxygen Demand
4. Chemical Oxygen Demand
6. Oil & Grease
7. Sulphate Content
8. Total Nitrogen
9. Demonstration of High Volume Sampler
10. Demonstration of Auto Exhaust Analyzer.
(B) Design of sewerage system & Treatment system for a small urban area.
(C) Visit to sewage treatment plant
Term work submission shall consist of the following –
1. Journal containing experiments carried out in part A of the term work and visit
Report on C
2. Detail design and appropriate drawings required for part B of the term work.
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