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 HP1 (HYDRUS-1D - PHREEQC)
 N(-3) lacking in HP1
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Bhavna
Average Member

USA
9 Posts

Posted - 07/28/2010 :  02:54:17  Show Profile  Reply with Quote
I am trying to incorporate a soil column with landfill minerals. I need to study redox in the system. I am unable to enter N(-3) in the list of "HP1-Components". I do see the option N(5) and N(3). I still tried to input N(-3) myself but it says that it needs to be defined. Any suggestion on why I can't use this particular valence state is appreciated. Just a note, only positive valence states are visible in this list.

diederik
Moderator

Belgium
19 Posts

Posted - 08/08/2010 :  09:09:12  Show Profile  Reply with Quote
You can add any master species component which are defined in the database [or as new master species in the input file] to the list of components in HP1.

The list given in the GUI is just an example of possible components and it is not complete.

diederik
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Bhavna
Average Member

USA
9 Posts

Posted - 08/08/2010 :  21:32:45  Show Profile  Reply with Quote
Thank you for your response. I wrote N(-3) in the component list but HP1 was unable to recognize that. Maybe, HP1 is using an older Phreeqc database.
However, I did add N(-3) as a new master species and it has been working fine.
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diederik
Moderator

Belgium
19 Posts

Posted - 08/08/2010 :  21:42:38  Show Profile  Reply with Quote
HP1 does not use a predefined database. You define the database of your choice [in the HP1 components and database pathway dialogue window] in the Database Pathway. You should check the database of your choice to see if N(-3) is present or how it is defined.

diederik
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Bhavna
Average Member

USA
9 Posts

Posted - 08/08/2010 :  22:00:07  Show Profile  Reply with Quote
Yes, this seems a much better solution than me adding all the components.
I really appreciate your help in this regard.
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