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Enviromental Engineering

1.Water Demand Fire Demand Kuichhlings Formula Freeman Formula National Board of fire Under Writer Formula Buston's Formula Per Capita Demand (q) Assessment of Normal variation Populating Forecasting Methods 2.Conduits for transpoting water Head loss Darcy-Weisbatch formula Hazen-William's Formula Modified Hazen-William's Formula Mannings Formula pressure Acting on Pressure Conduits Hoop tension or Circumferential tension(σ) Water Hammer Pressure 3.Development of ground water Darcy law's Speccific law's Specific yield Specific retension Slot opening Pack Aquifer Ratio (P.A) Well Losses 4.Quality Control of water Supplies Total Solid Suspended Solid Theshold odour number Consistituents of Alkalinity PH Value of water Hardness of water Biochemical oxygen demand (BOD) 5.Water treatment Theory of sedimentation Sedimentation tank Chemical use for coagulation Mixing Basin Flocculation Fileration Rapid sand filter Hydraullic of Sand gravity filters Hydraullic head loss expansion of the filter during backwash Disinfection or Strilization Type of Chlorination Starch iodide test Water Softning 6.Design of Sewere Hydraulic Formulaas for Determining Flow Velocities in Sewers and drains Chezy's Formula Kutter formula Bazin formula Manning's Formula Crimp and Burge's Formula William Hazen's Formula Shields Expression for self Cleaning velocity Hydaulic Characteristic of Circular Sewer Sewer is designed maximum hourly discharge 7.Quality & Characterstics of Sewage Aerobic Decomposition Anaerobic Decoposition Threshold Odour Number (Ton) Total Solids,Suspended Solids and settleable Solids Chemical Oxygen Demand Biochemical Oxygen Demand 8.Disposing of The Sewage Effluents Standard of Dilution for discharge of wastewaters into rivers Dilution and Dispersion Zone of Pollution in river stream Relative Stability (S) Stretcher-PHELPS equation 9.Treatment of sewage Settling Velocity Proportional Flow weir Prabolically or V Shaped Grit Chamber Provide with Parshall flume Skimming tank Sedimentation tank Trickling Filter Sludge Digestion tank Destruction and Removal Efficiency (DRE) Aeration tank 10.Air and sound pollution Primary Pollutants Secondary Pollutants Wind Speed Plume Characterstic of sound and its mesurement power of sound Noise Rating System Cpcb Standards of noise levels (dB) Ambient air quality standards dB(A),Leq

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