Contents

• Chapter 1 Sewage

  Introduction, Types of Sewage, Sewage Treatment, Process Used in Treatment Methods, Elements of Sewage Plant Analysis and Design, Order of Reaction, Disposal Scope of Sewage, Disposal Method, Role of an Environmental Engineer, Sewage Quality Parameters, Effect of Industrial Wastes, Effective Guidelines and Standards for Sewage, Review Questions

   

   Chapter 2 Collection of Sewage

  Introduction, Systems of Sewerage, Types of Sewerage System, Combined System, Separate System, Partially Separate System, Considerations for the Type of System, Planning of Sewerage System, System Layout, System Components, Design, Rational Method, Modified Rational Method, Hydrograph Methods, Time-Area Method, Unit Hydro-graphs, Patterns of Collection System, Quantity of Sanitary Sewage, Quantity of Storm-sewage, Sewer System Materials, Sewer Line, Construction of Sewer System, Sewer Testing, Sewage Pumping and Pumping Station, Types of Pumping Stations, Hydraulic Terms and Definitions, Design of Pump Stations, Review Questions

   

   Chapter 3 Sewage Treatment

  Introduction, Sewage Treatment Processes, Preliminary Treatment, Primary Sedimentation, Secondary Sedimentation or Biological Treatment, Activated Sludge Process, Variables of Activated Sludge Process, Trickling Filter, Components of Trickling Filter System, Trickling Filter Treatment, Design of Trickling Filter, Drawbacks, Sludge Digestion, Sludge Dewatering, Stabilization Pond, Requirement of Stabilization Pond, Types of WSP and Their Specific Uses, Description of Oxidation Ponds and the Arrangement of the Ponds in the Model, Septic Tank System, Siting Septic Tank System, Maintenance of Septic Tank Systems, Recent Trends in Sewage Treatment, Waste Water Treatment, Solids Removal, Nutrient Removal, Review Questions

   

   Chapter 4 Waste Water

  Introduction, Methods of Disposal of Wastewater, Surface Disposal, Disposal by Dilution, Self Purification of Streams, Sewage Disposal by Irrigation, Types of Land Treatment, Recycle and Reuse of Waste Water, System of Plumbling, Types of Plumbing, Traps, Requirement of an Ideal Trap, Classification of Traps, Review Questions

   

   Chapter 5 Air Pollution, Noise Pollution and Solid Waste Management

  Introduction, Harmful Effects of Air Pollution, On Human Health, Effects on Plants and Animals, Deterioration of Materials, Effects on Climate, Control of Air Pollution, Devices to Control Particulate Contaminants, Control of Gaseous Pollutants, Noise Pollution, Sources of Noise Pollution, Harmful Effects of Noise Pollution, Control of Noise Pollution, Greenhouse Effect, Global Warming, Effects of Global Warming, Acid Rain, Chemical Reactions of Acid Rain, Causes of Acid Rain, Effects of Acid Rain, Ozone Depletion, Ozone Hole, Importance of Ozone Layer, Causes of Ozone Layer Depletion, Mechanism of Ozone Depletion, Harmful Effects of Ozone Depletion, Solid Waste Management, Classification of Solid Wastes, Collection and Transportation of Solid Waste, Methods of Solid Waste Disposal, Economic Recovery Solid Waste, Sanitary Landfill, Reactions Occurring in Completed Landfills, Gases in Landfills, On Site Sanitation, Review Questions