ozone machine thread

[eyes]

If anyone wants to post there store bought or home made ozone genny,post it here. all designs and feedback on the quality of the machine your using, how often you use it(timed intervals), how strong it is(mg/grams),and how is it being used. in duct or inside or outside of room.

also baffle box designs are encouraged as well. I started this thread in response to the previous members thread asking if ozone or carbon was better. I wanted to offer more info from people out there who own them so others can learn from them.

 

[Sam the Caveman]

I bought a cheap one straight from china for $26. It puts out around 250mg/hr and has a dial timer on the front that you can set for however many minutes you want it to run. I opened it up and disconnected the timer part, so now I just use a regular 24 hour plug in timer.

I've had it for over a year and it still works great. I use to to clean the odor of the room after we trim or when I'm making butter, among other things.

I found it on ebay.

 

[medical marvel]

I have a Uvonair Junior. It has a small fan inside it. It puts out the Ozone..when the test patch was placed lower to the floor, it barely registered on the test patch.

I know people crank up the unit and have no trouble with their plants, but there are many many strains that do not like higher levels of ozone. Even a unit running the minimum amount, running constantly can be too much for some. Remember, if you have a 24 hr. circ fan and filter for negative pressure, that ozone is getting sucked over your plants when the unit is on.

You will know.it's okay to smell ozone here and there when the unit is on..but if you smell a constant stream, that is too much ( even though it would be below what the "suggested" environmental levels are. ) Used correctly, it will help with moulds etc. , and help your environment.

As Sam the Caveman said, trimming can be the worst...very important when trimming..always increase your tools.

Drywall or cement board your areas, Tape and paint, that will go a long way, compared with polyfilm and wood studs.

Use a huge exhaust fan and large filter always

 

[bakelite]

I built this a few months ago. I had a smaller one that was based on one of those novelty plasma balls that I hacked. This one works awesome. I knew it would throw out a decent amount of O3 hence the bathroom timer.

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[foomar]

Got this cheap off ebay five years ago , done around 2500 hours and still working well.

This model with an inbuilt air pump will sterilize resevoirs , remove contaminants from water includeing chloramine , keep water butts clean and make it safe to drink ect.

The nominal 250 mg rateing is probably optimistic unless useing oxygen enriched air as source , damp air is a problem and the unit will produce nitric acid if the air is very humid which corrodes the fuck out of everything nearby.

This one was able to mask the stench of four cheese under a 400 watter by itself , would work for most small setups but i wonder about reliability , would have a filter or spare unit on hand.

 

[supermanlives]

i had a uvonair. worked great. dont know what happened to it. it was in the attic where i vented to at the time

 

[GP73LPC]

i have several of these and have used them in my cabinets as well as living areas.

in the cabinets i ran them 24/7, in the living area on timer, 30 mins every several hours...

works well and is safe for household use...

what is a baffle box?

 

[ChaosCatalunya]

i have several of these and have used them in my cabinets as well as living areas.

in the cabinets i ran them 24/7, in the living area on timer, 30 mins every several hours...

works well and is safe for household use...

what is a baffle box?

i had a uvonair. worked great. dont know what happened to it. it was in the attic where i vented to at the time

A baffle box is an expansion area in the exhaust pipe that allows the smelly O2 to really mix properly with the O3 and neutralise the odours.

As supermanlives has his rigged, I always heard they work best when you have a separate space, room, to exhaust them in to, before it finally goes out.

 

[GP73LPC]

my old cabinet had a 'baffle box' then.

i had a 1' x 3' x 16" enclosed box where exhaust from my grow chamber mixed with ozone before exiting across a 14" x 12" x 2" layer of carbon...

link in my sig... very stealth fishtank cabinet...

 

[eyes]

good info,guys. hopefully even more people will chime in as well.

Bakelite- Is that regular hardware screen? You have a screen on the inside and one on the outside of the jar? I had a uvonair and the glass cracked in the short time i owned it. do you notice any difference of ozone quality after running it for an extended period of time?

would be cool to see a pic of that bad boy arcing in the dark.

anyone with a big blue? would be interesting to hear how users like these as well.

 

[bakelite]

Bakelite- Is that regular hardware screen? You have a screen on the inside and one on the outside of the jar? I had a uvonair and the glass cracked in the short time i owned it. do you notice any difference of ozone quality after running it for an extended period of time?

would be cool to see a pic of that bad boy arcing in the dark.

eyes, ya that is plain ol' hardware cloth, inside and outside the jar. No issues with glass jars on either of my O2 machines (knock on wood). Since I only run it in my room during trimming, smoking etc. it's only on for 3-4 minutes at a time. It does seem to have a slightly reduced output since i built it a few months ago. I figure it could be from dust build up on the cell (jar/mesh) itself.

It does light up nicely in the dark

-bakelite

 

[Dislexus]

So, ozone before scrubber, or after scrubber?

In placing the ozone before the scrubber, the ozone degrade the carbon, make no difference, or make it last longer?

 

[GP73LPC]

So, ozone before scrubber, or after scrubber?

In placing the ozone before the scrubber, the ozone degrade the carbon, make no difference, or make it last longer?

i dunno

i built with ozone b4 scrubber and it worked for everything but some stinky afghani i grew...

 

[Dislexus]

It'd be awesome if the ozone attacks the smell molecules trapped in the activated carbon, making it last longer.

But maybe it degrades it.

Or does nothing.

How the fuck do you test something like that hmmm...

 

[GP73LPC]

someone here knows the answer....

they'll join the discussion eventually

 

[bakelite]

Ozone reacts with activated carbon and forms carbon dioxide (CO2) and carbon monoxide (CO). It would be an excellent way to scrub ozone from your exhaust but I wouldn't want to vent it indoors.

 

[GP73LPC]

Ozone reacts with activated carbon and forms carbon dioxide (CO2) and carbon monoxide (CO). It would be an excellent way to scrub ozone from your exhaust but I wouldn't want to vent it indoors.

hmm, i did it for several years... is that what's wrong with me?


no really, thanks i did not know that. where did you get this information?

this really answers the question and the carbon scrubber needs to come before the ozone generator...

 

[bakelite]

hmm, i did it for several years... is that what's wrong with me?


no really, thanks i did not know that. where did you get this information?

this really answers the question and the carbon scrubber needs to come before the ozone generator...

GP,

Absorption and Reaction with GAC
Activated carbon adsorption is extensively used for small applications where air is the ozonator feed gas. This is an adsorption process whereby the reaction consumes the carbon media. The material used is elemental carbon which has been steam activated to provide a large internal surface area. “Carbon is a strong reducing agent, therefore upon contact with ozone gas, the carbon is oxidised to carbon monoxide and carbon dioxide, resulting in destruction of the ozone molecule,” Philip explains.
This reaction degrades or powderises the granular activated carbon, therefore it has a finite life. To this end, the ozone consumes the carbon by slow-rate combustion. Due to this consumption of carbon, the media must be replaced regularly. When the carbon is saturated with water and washed with sprays, the reaction becomes partially catalytic, requiring a larger volume of GAC to be used.
“For ozone installations where oxygen is used as the feed gas, carbon adsorption destructors must not be used, due to the dangers of combustion,” Philip warns.

Here is the link:

http://hydroponics.com.au/free-articles/issue-36-introduction-to-ozone-generation

There is other information out there regarding O3 and Activated carbon but most are technical publications. FWIW laser printers have a small activated carbon filter to get rid of O3 generated by them.

Hope this helps.

-bakelite

 

[GP73LPC]

GP,

Absorption and Reaction with GAC
Activated carbon adsorption is extensively used for small applications where air is the ozonator feed gas. This is an adsorption process whereby the reaction consumes the carbon media. The material used is elemental carbon which has been steam activated to provide a large internal surface area. “Carbon is a strong reducing agent, therefore upon contact with ozone gas, the carbon is oxidised to carbon monoxide and carbon dioxide, resulting in destruction of the ozone molecule,” Philip explains.
This reaction degrades or powderises the granular activated carbon, therefore it has a finite life. To this end, the ozone consumes the carbon by slow-rate combustion. Due to this consumption of carbon, the media must be replaced regularly. When the carbon is saturated with water and washed with sprays, the reaction becomes partially catalytic, requiring a larger volume of GAC to be used.
“For ozone installations where oxygen is used as the feed gas, carbon adsorption destructors must not be used, due to the dangers of combustion,” Philip warns.

Here is the link:

http://hydroponics.com.au/free-articles/issue-36-introduction-to-ozone-generation

There is other information out there regarding O3 and Activated carbon but most are technical publications. FWIW laser printers have a small activated carbon filter to get rid of O3 generated by them.

Hope this helps.

-bakelite

this most definitely helps. i had read after your original post that the ozone did degrade the carbon, but the carbon monoxide and carbon dioxide creation is important info to have.

that article does not mention amounts of those toxic chemicals created. aren't both of these in cigarette smoke as well?

so i don't know if the amounts are really damaging to humans in a living area. like i said i had this setup for years with no adverse affects to me, family members or pets.

the article does also say this about ozone...

Although ozone in the gaseous form is both toxic and reactive, it represents no safety handling problems in properly designed operating systems. Unlike most other oxidants which are stored on site in bulk form, ozone is produced on site in low concentrations and immediately consumed. Consequently, any accidental leakage can be easily controlled, as evidenced by ozone’s long safety history in many applications around the world.

Breathing traces of ozone in air for a few minutes is of little public health concern. Even though throat and lung irritation plus oedema have been observed after extreme exposures to ozone, it is important to recognise that during more than 100 years of commercial use, no deaths related to ozone exposure have ever been reported.

with all of that said, in the future i will build unit in reverse order. carbon scrubber first and then ozone capture and clean box

thanks

 

[foomar]

Have done site inspections at a number of midlands industrial estates this week and had a closer look at how they manage smell and pollutants on a larger scale and talked to a couple of engineers.

Most no longer use carbon filters but the steel caseing is left in place to act as a mixing chamber for ozone.

Primary treatment is a modern efficient electrostatic precipitator , ozone is then injected at 25 g/hour and up from a machine the size of a small car , sensor at the exhaust controls ozone rate with demand.

The reason is cost cutting and convenience , ozone and ESP is half the overall cost of filters to industry , larger ones contain a tonne of carbon and last six months or less.