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#1
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Disolved oxygen meter
any one ever mess with a disolved oxygen meter. is there a diy way to build one out there. I heard they were expensive but never looked into them. i'm nver have a issue but i'm curiuos to know what my readings are and how much changing stones and volume effects the reading. at one point i had a stone in under every plant in the system and now i have one duel fuish pump from wally world with two small blue round stones and all seems to be the same.
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#2
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We did this with fish and came up with a solution that most likely will not sit well with people on this site.
Air stones really do not allow the air to absorb well into the water. More air can be absorbed by surface agitation of falling water then air stones them self to say. If you dont have a lot of water falling into it them, yes the air stones are going to crate the surface water movement that you need for the air to get absorbed into the water. So in theory the more you can brake up the water the more it will become enriched with air. However i also believe that water can only hold 11 parts of oxygen, and no more. Thats why the have the foggers out there for hydroponics, because it will be 100% humidity and 100% air. I hope this helps your thinking. - smurf some videos http://www.youtube.com/watch?v=4oAQh8kH94E http://www.youtube.com/watch?v=KTzzJV0UTvs Last edited by smurf; 01-20-2010 at 09:36 PM. |
#3
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Say you have a one gallon volume bubble of air, then you take that same gallon volume of air and split in two, so now you have 2 half gallon sized bubbles. It wont be twice as much surface area because they are smaller, but by far there is more surface area in the 2 bubbles than the one bubble. Now take that same gallon sized bubble and turn it into 10,000 bubbles using an air stone, now you have significantly increased the surface area. Now use a air stone that puts out 1,000,000 air bubbles for the same one gallon volume of air, now you have significantly increase the surface area once again. Lets say it was possible to create an air stone that was able to make air bubbles the size of a single molecule, well now you have created fog. Quote:
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I have somewhat looked into Ozone Generators. I didn't find any build your own plans for them, but did find that they add a significant amount of oxygen to hydroponic systems, as well as being a purification system for hydroponics. Though they can have issues to deal with like toxic fumes that you need to be clear of, and a special reservoir setup to take best advantage of it. And highly unstable with 3 oxygen molecules as apposed to 2 with H2O2. Basically not for small reservoirs but they work well for commercial operations. In looking into them I found out about using UV lights as a form of disease control witch led to my thread in this forum: Any thoughts on using UV lights as a form of disease control? but still has no reply's. Last edited by GpsFrontier; 01-21-2010 at 03:39 AM. |
#4
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I may have said it wrong, however Its 100% of the volume of air can hold 100% humidity. While water can hold I think 11% oxygen.
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