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Hardness
Water Softening
Municipal Water Treatment
Boiler Troubles
Water Softening 2
100
Soap Consuming Capacity of Water
What is Hardness of Water
100
Removing hardness of water
What is softening of water
100
Screening
What is frst step in getting potable water
100
Formation of Scale and Sludge
What are the disadvantages of Hardwater
100
Sludge disposal is very difficult, Hardness is around 25 ppm
What are disadvantages of L-S process
200
Gives lather with Soap
What is Soft Water
200
Sodiumm alumino silicate
What is Zeolite Y
200
In order to settle fine particles of impurities, helps in forming coarse particles
What is use of coagulant
200
Semi Solid slurry formed in an industrial process
What is Sludge
200
hardness of water is 10 ppm
What is the hardness of water in Zeolite process
300
Parts Per Million
What are the units of expressing hardness
300
Cross link polymer of styrene divinyl benzene
What is Ion exchange resin
300
Addition of chlorine to water to remove disinfectants
What is Chlorination
300
Hard sticky precipitate formed in boiler
What is Scale
300
Both cations and anions were removed and 2 ppm hardness obtained
What are advantages of Ion Exchange process
400
Removes by mere boiling of water
What is Temporary Hardness
400
By passing brain solution
How will you regenerate Zeolite
400
Hypochlorous acid
What acts as germicide
400
Minute hair cracks formed in inner layers of boiler
What is caustic enbrittlement
400
CaCO3 is highly insoluble and easy for calculations
Why hardness can be expressed as CaCO3 equivalents
500
Complexometric method
What is principle involved in determination of hardness of water
500
NaOH and HCl
What are the reagents used for regeneration of ion exchange resins
500
The point at which demand of chlorine has been fully satisfied by the addition of chlorine to water
What is Break Point Chlorination
500
Excess soda present in lime treated water
What is responsible for caustic embrittlement
500
Pure water can be removed or separated from impurities by applying high pressure than hydrostatic pressure
What is the principle in Reverse Osmosis