November 21, 2019, 08:14:32 PM
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Topic: milk lime dosing for raising water ph  (Read 164 times)

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Offline danavuia.1987

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milk lime dosing for raising water ph
« on: July 31, 2019, 03:09:31 AM »
What is the milk lime dosing for ph raising in a water plant who uses aluminium sulphate for coagulation?
In rainy season  water turbidity is 200 ntu, and we use a lot of aluminium sulphate .
raw water total alkalinity=1.6 mval/l
ph=7.2
total hardness=5
Thank you!

Offline chenbeier

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Re: milk lime dosing for raising water ph
« Reply #1 on: July 31, 2019, 03:41:34 AM »
This is not possible to answer because the target pH is not given. How much aluminiumsulfate is present and so one. Lime will precipitate with the sulfate anyway.

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