oxygenation of water questions

[warmemorial]

what is the maximum ammount of Disolved Oxygen that 70 degree water can hold and how long will it take to reach those levels with a few air stones.

i ask because i just bought a water filter for my pickle barrel and now i wonder whether i still need to bubble for 24 hours or not.

-thanks
i cant find much info on this

 

[cannachef]

you should still push the water with a airstone. the point of doing that is to dechlorinate the water so the chorine doesn't kill your myco.

 

[Granger2]

You can remove the chlorine from the water just by letting it sit for 24 hours. One purpose of bubbling it is to speed getting the chlorine to exit the water, but bubbling it dissolves oxygen in the water, benefiting the aerobic micro organisms. Good luck. -granger

 

[SeaMaiden]

what is the maximum ammount of Disolved Oxygen that 70 degree water can hold and how long will it take to reach those levels with a few air stones.

i ask because i just bought a water filter for my pickle barrel and now i wonder whether i still need to bubble for 24 hours or not.

-thanks
i cant find much info on this

IIRC it's something like 8 (it's been YEARS since I've tested DO of a given water column, both fresh and salt water) @70*F, but may be lower given the temperature.

How long it would take to drive up DO levels depends on a few factors such as volume of the water column, surface-to-area ratio (the lower the ratio the more difficult it will be to get DO levels driven up) and the amount of surface turbulence you can generate with the air stones.

Many folks believe that O2 is being exchanged with CO2 at the bubble's surface. This is not true, their surface area is too small to offer significant effect. Where the CO2/O2 exchange occurs most, most strongly and most vigorously is at the surface, which is why turbulence is what you're after, along with pulling water from down low up to the surface so as to encourage greatest exchange.