OK... finally... back to the CJDS posts.
We are talking about degassing DK's carbonated
well tap water, using a degassing reactor/chamber in-line with DK's Water Factory III. DK's well water comes from the well chock full of CO2 gas, which results in very acidic tap water, acidic enough to eat through brass and also acidic enough to make Mermaids very unhappy.
Before this post, we talked about things that contribute to degassing:
The rough conceptual equation for degassing is:
RESIDENCE TIME x degassing rate x increase in temperature
= amount of degassing that occurs.
The solubility of a gas in a liquid depends on temperature,
the partial pressure of the gas over the liquid,
the nature of the solvent
and the nature of the gas.
We talked about RESIDENCE TIME, the time a solution sits around - the longer it sits, the more degassing happens over time.
We talked about MATRIX (ice cubes, and in the CJDS case the orange scrubby net), and how MATRIX provides SURFACE AREA for degassing to occur, and the higher the SURFACE AREA, the faster the degassing rate.
Today, we finish up with the last two practical parts of the CJDS degassing rate. One thing we DO NOT include, but which is related to degassing rate, is the pressure of gasses over the liquid (in lay terms, the pressure of the different air molecules in air on the surface of the water). We don't get into this because in our CJDS system we are basically not ever changing the pressure of the system, so that variable doesn't matter so much in our CJDS system, even though in physics it does.
Today, we illustrate two more aspects that DO relate to the CJDS system: temperature, and agitation.
DK took two identical cashew jars, put in the same amount of matrix, filled with freshly run DK well carbonated tap water, and set one on the kitchen counter at room temperature, and put the other in the fridge at cold temperature.
After 24 hours, she put the jars side by side and took pics of the degassing.
You will see that the room temperature jar has had a significant amount of degassing happen on the matrix surface, whereas the refrigerated jar shows no visible bubbles.
Much more degassing is in progress in the warmer jar, because there is more heat energy for the gas molecules to bump around and mingle, and stick together, forming bubbles that snowball in growth over time. Much, much less bumping around and mingling the colder you go, so less forming bubbles.
In other words, more degassing takes place over a set amount of time if the temperature is warmer, than if the temperature is colder.
The top pictures shows the jars at the beginning, each treated the same, before separating them for temperature.
The bottom picture is 24 hours later, with the left jar held at room temperature and the right jar in the fridge. You can see the difference in rate of degassing easily.