Ammonium Phosphate (NH4)3PO4 is a strong electrolyte. What will be the concentration of all the ions in a 0.9 M solution of ammo
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Solution :
Given :
The steady state flow = 8000
The concentration of the particulate matter = 18 mg/L
Therefore, the total quantity of a particulate matter in fluid
If 60 mg of alum required for one litre of the water treatment.
So Alum required for
or 480 kg/d
Therefore the alum required is 480 kg/d
1 mg of the alum gives 0.234 mg alum precipitation, so 60 mg of alum will give
mg of alum ppt. per litre
480 kg of alum will give = 480 x 0.234 kg/d
= 112.32 kg/d ppt of alum
Daily total solid load is
= 256.32 kg/d
So, the total concentration of the suspended solid after alum addition
= 32.04 mg/L
Therefore total alum requirement = 480 kg/d
b). Initial pH = 7.4
The dissociation reaction of aluminium hydroxide as follows :
After addition, the aluminium hydroxide pH of water will increase due to increase in ions.
Therefore, the pH of water will be acceptable range after the addition of aluminium hydroxide.
c). The reaction of and water as follows :
For the atmospheric pressure :
And the pH is reduced into the range of 5.9 to 6.4