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Acid mine/rock drainage
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How to eliminate UNDIFINED values (N\A) in a Eh-pH diagram using PhreePlot
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Topic: How to eliminate UNDIFINED values (N\A) in a Eh-pH diagram using PhreePlot (Read 363 times)
Juan Sebastian
Frequent Contributor
Posts: 22
How to eliminate UNDIFINED values (N\A) in a Eh-pH diagram using PhreePlot
«
on:
May 01, 2024, 08:50:38 AM »
Hello, I have problems with Undifined values when I plot a Eh-pH diagram using data of an acid mine drainage. I want to know, how can I eliminate this UNDEFINED values and generate a clean plot? I already looked the examples of the manual, but I don't realise what I doing wrong. Please help!
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dlparkhurst
Top Contributor
Posts: 3665
Re: How to eliminate UNDIFINED values (N\A) in a Eh-pH diagram using PhreePlot
«
Reply #1 on:
May 01, 2024, 07:06:41 PM »
You should write to David Kinniburgh for PhreePlot questions.
It is probably a better idea to make a pH-pO2 plot. You are less likely to get undefined values by being outside the stability field of water.
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Juan Sebastian
Frequent Contributor
Posts: 22
Re: How to eliminate UNDIFINED values (N\A) in a Eh-pH diagram using PhreePlot
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Reply #2 on:
May 01, 2024, 10:15:21 PM »
Thanks dlparkhurst, I just write to David Kinniburgh.
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PhreeqcUsers Discussion Forum
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Acid mine/rock drainage
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How to eliminate UNDIFINED values (N\A) in a Eh-pH diagram using PhreePlot