Blueingreen Oxygen Injection At Norfork

[graceanne]

Hi all!

First of all, if this is an inappropriate use of this forum, I apologize and will not pursue this any further.

I am with BlueInGreen, LLC in Fayetteville. We conducted a test of our SDOX oxygen injection system in Quarry Park below Norfork Dam from November 13th through 21st. We have seen some discussions about our system around the internet, and I wanted to make myself available to answer any questions anyone has about the system or the test.

I am also curious about y'all's thoughts about the oxygen injection we did at the Norfork Dam tailrace. Did anyone see it? Did you notice a difference in fish activity or quality of fishing? Do you have stories about the effects on fishing?

I'm interested in all comments and stories, good or bad. We think that some of the best evidence will be from the fishermen who were there and saw the effects of our system on the fish.

We are analyzing all of the data we collected on our tests both in the river and at the Hatchery and are writing a report that will be available to anyone who wants a copy.

Thank you!

Grace Richardson

grace.richardson@blueingreen.biz

[laker67]

I read a post on John Wilson' site. According to the 2 fishermen, they were directly below the 02 injection system and caught nothing. They were even using bait. Zip, Zero, Nothing.

[Phil Lilley]

Is this is same kind of system the Corp uses at the Table Rock facility? Also, Shepherd of the Hills hatchery installed a new injection system.

Can't speak to the Norfork Tailwater but there are others that can here.

It would be interesting what your data showed- before and during your injection period.

Also, you're probably going to look at the data in years to come because temperature of water is a big factor. Our water temp was high this year so O2 saturation was harder to achieve I'd think.

[snagged in outlet 3]

First off, thank you Grace for your work. It's the best news about the Norfork since they outlawed dragging chain.

Second, I don't think the fact that some guys fishing around the O2 injector, and didn't catch fish, has anything to do with the viability of the system.

I'm curious about your answers to Phil's questions and also the data you collected during your test.

I say "NO" to minimun flow until the O2 problem is addressed.

Thanks again for your work. When the report is ready, I'd like to see it.

SIO3

[graceanne]

Hi Mr. Lilley, thank you for your questions!

The system the Corp uses at the Table Rock facility and the injection system at SOTH hatchery are different from our system. I know that most people on here know more about it than I do, but from what I understand, the Table Rock dam uses turbine venting to raise the dissolved oxygen (DO) in the tailrace of the dam. And, I’m not certain what Shepard of the Hills hatchery uses to add dissolved oxygen to its raceways. But, our technology works differently from other oxygen injection systems. Most systems add oxygen in a gas form to water as bubbles and provide some method for it to dissolve (mixing, agitating, long retention time, etc). Ours, on the other hand, completely dissolves oxygen into water first, before adding it into the water to be treated. So only DO is added with no bubbles.

Temperature can make a difference in the performance of a system because, just like you said, warmer temperature waters will hold less oxygen. Bubbling systems are greatly affected by water temperature (especially in shallow water) because they rely on dissolving the bubble in the river/lake and the higher the water temperature, the slower the bubble dissolves. The SDOX system is not as affected by temperature since we use high pressure pure oxygen to get the DO very high (350 ppm) and then mix this with the river and are not relying on the rate bubbles dissolve in the water. We have temperature data, too, so we’ll be taking that into consideration as we analyze everything.

Once we have the report done (probably next week some time), I’ll post a link to it on here. It’ll show what we did with our system, and what was happening before we started injecting.

[Phil Lilley]

We talked about this at our Trout Unlimited meeting last night (see audio download). The corp does inject liquid o2 into the turbines but alot of it is lost in the mix before it even hits the lake.

It would be great if you all took over the operation here at Table Rock as well as other tailwaters if your test prove your system works better than the Corps. Sounds like your method would even save money.

[graceanne]

Hi Mr. Lilley,

I can't seem to find the audio download of the Trout Unlimited meeting. Where can I find that?

Thank you!

Grace

[Flysmallie]

Grace,

Here is a link to the topic for the TU meeting. The link to the audio is in Phil's first post.

http://ozarkanglers.com/forums/index.php?showtopic=14746

[taxidermist]

I have heard from others that the bite really imporved duting the O2 injection, even below thw catch and release area.

Now if its their imagination or they just had more confidence that's something to be debated. One thing certain is it reduced the stress on the fish.

[graceanne]

Hi all,

I just wanted to let you know that we now have a presentation of our technology on our website as it is relevant to the Norfork Dam. You can view it at http://www.blueingreen.biz/BnGNorforkDam_s.pdf.

Thank you!

Grace