Ozone Air Dryer

[Bryan]

Hello randy:

I understand that calcium chloride can be used as a media to dry air for a ozonizer. Any idea how I can DIY. If I recall correctly the calcium chloride turns to a liquied as it absorbs moisture.

[Randy Holmes-Farley]

We talk about it here:

http://archive.reefcentral.com/forums/showthread.php?s=&threadid=313295

[Bryan]

Oops, short memory. I was the one who asked the origianl question.

Any idea what would be the best way to use the calcium chloride. I was thinking of a tube lying on it's side with inlets and outlets at both ends.

How tightly packed should the calcium chloride be?

[Randy Holmes-Farley]

The tighter the better, as long as the air still flows through. An up/down tube might be less likely to have an air channel along the top of the tube than a horizontal one.

[Boomer]

An up/down tube might be less likely to have an air channel along the top of the tube than a horizontal one.

Yes, they should run vertical, all of those I have used do. You should put some floss and a sponge disk at the input, inside the tube, for better filtration fom the air.

[Bryan]

If I go vertical how do I stop the water from collecting at the bottom and plugging the inlet or outlet?

[Boomer]

There is not that much water in air. The media absorbs the water. Cooking it in th oven once a month will drive of the water and the media will be refreshed :D

[Bryan]

Thanks Boomer. I was under the impression the Calcium Chloride would turn to a slushy wet mush, plugging the inlet or outlet.

[Boomer]

If it does you will need to cook it more often. A much better way would be to go to LFS and get some FW Ammonia remover or the granular phosphate sponge media like SeaChems, PhosGurad

There are four common material used for air drying

1. Calcium Sulfate, like Drierite

2. Activated Alumina like, like PhosGuard

3. Zeolite, like FW Ammonia remover or old fashion floor dry or kitty liter.

4. Silica Gel

# 3 is the best at removing moisture

[Bryan]

I like the idea of kitty litter. Cheap, and easy to fine.

[Boomer]

kitty litter

BE VERY CAREFUL HERE.

Take note I said old fashion you can not use some of the new stuff that has perfumes in it or is of a non zeolite nature

[Bryan]

Boomer:

Ok, can Zeolite be baked to remove moisture.

[Boomer]

Yes

[Bryan]

Boomer:

One more quick question. the Zeolite I picked up today was quite dirty and needs to be washed and then baked.

Does 300 degrees for a couple hours seem ok.

[jdieck]

Hi Bryan.

I use indicating Silica gel beads and it works well. I use two 11/2" dia 40 inch long acrylic pipes full of hte silica and they need regeneration about every 10 days.

230F in the oven for 45 minutes does the trick.