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Topic: How to remove COD  (Read 3817 times)

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Offline ujwal_rana

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How to remove COD
« on: September 17, 2013, 01:59:33 AM »
We have spent acid that contain 80 % sulfuric acid, 15-20 % water and 1 % p-Chlorobenzenesulfonic acid. Its COD is nearly 36000 ppm. I want to reduce the COD below 2000 ppm. We have a party willing to take the spent but the condition is COD should be below 2000 ppm.

Any suggestions.
« Last Edit: September 17, 2013, 05:21:20 AM by ujwal_rana »
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Offline curiouscat

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Re: How to remove COD
« Reply #1 on: September 17, 2013, 02:36:33 AM »
What will you do after the COD is reduced? 80% spent acid even without COD is not exactly ripe for disposal.
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Offline discodermolide

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Re: How to remove COD
« Reply #2 on: September 17, 2013, 03:02:23 AM »
May I ask what COD stands for?
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Offline DrCMS

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Re: How to remove COD
« Reply #3 on: September 17, 2013, 04:37:48 AM »
Quote from: discodermolide on September 17, 2013, 03:02:23 AM
May I ask what COD stands for?

Chemical Oxygen Demand see http://en.wikipedia.org/wiki/Chemical_oxygen_demand it is essential a measure of how much combined organic material is in the waste stream
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Offline ujwal_rana

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Re: How to remove COD
« Reply #4 on: September 17, 2013, 05:18:20 AM »
We have one party who is willing to take the spent provided the COD below 2000 ppm
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Offline curiouscat

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Re: How to remove COD
« Reply #5 on: September 17, 2013, 05:44:25 AM »
Quote from: ujwal_rana on September 17, 2013, 05:18:20 AM
We have one party who is willing to take the spent provided the COD below 2000 ppm

Use a multi effect evaporator, I guess. 
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