re: CO2 capacity

---------- Forwarded message ----------
From: psears at emr1_NRCan.gc.ca (Paul Sears)
Message-Id: <9702031837.AA05232@emr1.emr.ca>
Subject: CO2 Capacity ?
To: Aquatic-Plants at ActWin_com
Date: Mon, 3 Feb 1997 13:37:32 -0500 (EST)

     * Subject: CO2 Capacity? 
     * From: STDIXON <stdixon at bechtel_com> 

>interest is along the following lines:  Assume a steady CO2 bubble size and
>flow rate, and a steady flow of water through a given CO2 reactor.  If I
>have say, about 7 mg/l CO2 at a pH of 7.0 with KH of 2.5, would I have a
>greater CO2 mg/l concentration if I raised the KH to say 4?  In other
>words, if I would be willing to accept a higher base case pH, could I
>increase the CO2 levels for a given supply of CO2?

	No.  The CO2 concentration would remain the same, and the pH would
rise by log(4/2.5), or about 0.2.

Paul Sears        Ottawa, Canada

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