Environmental Engineering – 2

Contents:-

Miscellaneous treatment of water:-

Removal of iron and manganese, Removal of colour, odour and taste, Fluoridation, De-fluoridation, Necessity of disinfection, chlorination, Action of chlorine, Chlorine demand, Break point chlorination, Super chlorination, De chlorination, Chlorine residual, Disinfection by iodine and bromine, Disinfection by ultraviolet rays, Chlorine dioxide, Well disinfection, Reverse osmosis, Electro-dialysis, Microfiltration, Ultra filtration, Nano filtration

Characteristics of sewage:-

Basic definition, Physical characteristics, Chemical characteristics, Biological characteristics, Determination of biological oxygen demand ( B.O.D), Determination of chemical oxygen demand (C.O.D) , Decomposition of sewage, Graphical representation, Sewage farming method, Flow diagram of primary treatment, Screens, Grit chamber, Primary sedimentation tank, Flow diagram of secondary treatment, Secondary sedimentation tank

Sludge Disposal:-

Activated sludge process, Sludge digestion tank, Dosing tank, Elements of trickling filters, Septic Tank, Sludge digestion, Imhoff tank, Sludge disposal, Disposal by drying bed, Disposal on land,

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