In which unit operation, gases are released or absorbed in water?
How many types of aerators are commonly used in the treatment of water?
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Which of the following process is used to remove the colloidal particles from water?
Flocculation of iron from water by addition of lime is an example of which of the following process?
In which unit operation objectionable solutes are converted into unobjectionable forms without removal?
In which form of solute stabilization, hydrogen sulfide in water is oxidized into sulfate?
Which form of solute stabilization occurs when water passes through limestone?
In which process, excess lime is converted into bicarbonate?
By which process, odour producing substances is oxidized?
Solids are removed from the water by which of the following unit operation?
Organic contaminants are removed from the water by the process of ______