The common method(s) used for disinfection in waste water...
The common method(s) used for disinfection in waste water treatment plants are
chlorination
UV light
both (a) and (b)
Phenolic solvent
Correct answer is C
No explanation has been provided for this answer.
Sulphydryl oxidase is used for ...
The chemical oxygen demand (COD) measures the ...
Soya off flavour removal may be achieved using ...
The bitter taste of the high protein materials is reduced by using ...
Permanent hardness of water may be removed by the addition of ...
Application of quaternary ammonium compounds as sanitizing agents tends to ...
The methods used for biological treatment are ...
Temporary hardness of water is caused by the presence of ...