I had a query with regards to alkaline (pH 10) solutions and CO2. I have a solution whose composition is listed below and I am bubbling CO2 through the solution. I want to see how long at a given flow rate (x litres of CO2) before I have the precipitation of a certain amount of CaCO3. I can't seem to get the output right no matter what I try. I need to keep the pH constant for the entire reaction. Is the following code correct for what I am doing?
SOLUTION 1 Nutrient Solution, pH 10, No CO2
Cl 256 charge
-water 1 # kg
GAS_PHASE 1 CO2 addition
Also when I increase the pH, it returns lots of errors. Any help you can give would be great.
Centre for Mined Land Rehabilitation
School of Land and Food Sciences
University of Queensland,
Brisbane, QLD, AUSTRALIA, 4072.
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