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Author Topic: Aluminium Oxide removal from process cooling water  (Read 669 times)

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flana

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Aluminium Oxide removal from process cooling water
« on: January 16, 2019, 04:34:16 AM »

Hi All,
Looking for advice on  Aluminium Oxide removal from closed loop process cooling water.
We have contamination of a process cooling water supply with  Aluminium Oxide, levels of 31 mg/L and it should be less than 0.1.
The oxides are coming from equipment that is cooled by the process water. Our previous water treatment was not preventing corrosion which is the Alu Oxide. I was told filtration may not work ?
Any thoughts or advice appreciated.
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chenbeier

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Re: Aluminium Oxide removal from process cooling water
« Reply #1 on: January 16, 2019, 06:17:53 AM »

Aluminium oxide is not soluble in water. Do you mean aluminiumion 31 mg/l?
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flana

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Re: Aluminium Oxide removal from process cooling water
« Reply #2 on: January 16, 2019, 11:56:49 PM »

Aluminium is what the report stated, should be less than 0.1mg per litre and we are seeing 30mg per litre.
Water has a white color.
« Last Edit: January 17, 2019, 12:08:18 AM by flana »
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billnotgatez

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Re: Aluminium Oxide removal from process cooling water
« Reply #3 on: January 17, 2019, 03:31:49 PM »

I wonder if this is suspension of alumina nano-particles.
Especially, if there is continual  mixing.
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flana

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Re: Aluminium Oxide removal from process cooling water
« Reply #4 on: January 18, 2019, 07:10:59 AM »

Yes it does seem to be suspended particles
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billnotgatez

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Re: Aluminium Oxide removal from process cooling water
« Reply #5 on: January 23, 2019, 11:20:34 AM »

Can you use a Flocculation process.
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