It is about Water Treatment for Industrial Applications and introduction introduction regarding sources, impurities in water, hardness of ware there types. It also includes Softening of water using lime-soda process it principles, Zeolite softener, demineralization by synthetic ion exchange resins.The text book also involved Boiler troubles: Carryover, Priming and Foaming, Scales and Sludges, Caustic Embrittlement, Boiler Corrosion and its Causes.and effects on boiler operation and methods of prevention. External and Internal conditioning.