Environmental Engineering

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General

  1. Terms - Sewage, domestic sewage, sewage treatment, disposal, scope, 
  2. Role of an environmental engineer, 
  3. Historical overview.

Sewage Characteristics

  1. Quality parameters: BOD, COD, TOC, Solids, DO, Nitrogen, Phosphorus, 
  2. Standards of disposal into natural watercourses and on land, 
  3. Indian Standards.


Collection of sewage

  1. Systems of sewerage: separate, combined, and partially separate, 
  2. components of sewerage systems, systems of layout, 
  3. A quantity of sanitary sewage and variations, 
  4. the quantity of stoffil water, 
  5. Rational method, shapes of sewer, circular and egg-shaped, 
  6. A Hydraulic design of sewers: diameter, 
  7. Self-cleansing velocity and slopes, 
  8. Construction and testing of sewer lines, 
  9. Sewer materials, 
  10. Joints and appurtenances, 
  11. Sewage pumping and pumping stations.

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Sewage Treatment

  1. Various units: their purposes sequences and efficiencies, 
  2. Primary treatment: screening and grit removal units, oil and grease removal, Primary treatment, 
  3. secondary treatment: activated sludge process, trickling filter, Sludge digestion and drying beds, Stabilization pond, septic tank, Soakage systems, Imhoff tank,
  4. Recent trends in sewage treatment, 
  5. Advanced wastewater treatment nutrient removal, 
  6. Solids removal.

Wastewater Disposal and reuse

  1. Disposal of sewage by dilution, 
  2. Self-purification of streams, 
  3. Sewage disposal by irrigation & sewage farming, 
  4. Wastewater reuse.

Plumbing for Drainage of building

  1. Various systems of plumbing - one pipe, two pipes, 
  2. Single stack, Layout of house drainage.












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