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Solarbees for Lake Burley Griffin?

By johnboy - 8 June 2011 27

The Canberra Times has a story on plans to install six Solarbees in Lake Burley Griffin to combat the dreaded Blue Green Algae.

If you’re wondering what’s involved with these solar powered water circulators the company’s website has an excellent video which we’ve posted above for your edification.

They make a compelling argument.

screenshot

What’s Your opinion?


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27 Responses to
Solarbees for Lake Burley Griffin?
Cheap 8:11 pm 08 Jun 11

Why not simply chlorinate the lake?

Watson 2:52 pm 08 Jun 11

p1 said :

Thumper said :

While it would be more effective to treat the source of the problem, this seems to be a pretty good step in the right direction regardless.

I think the argument could be made that stratification within the water body IS on of the problems (it isn’t a symptom, unless you are out there measuring the temperature at varied depths on a regular basis). So this is treating the problem….

It’s sounding better and better all the time!

Holden Caulfield 2:49 pm 08 Jun 11

If only they were installed before the Feed-In Tariff was canned.

p1 2:18 pm 08 Jun 11

Thumper said :

While it would be more effective to treat the source of the problem, this seems to be a pretty good step in the right direction regardless.

I think the argument could be made that stratification within the water body IS on of the problems (it isn’t a symptom, unless you are out there measuring the temperature at varied depths on a regular basis). So this is treating the problem….

p1 2:16 pm 08 Jun 11

Thoroughly Smashed said :

p1 said :

What we need in genetically engineered carp that eat algae….

…and other carp.

…and then themselves?

Thumper 1:39 pm 08 Jun 11

While it would be more effective to treat the source of the problem, this seems to be a pretty good step in the right direction regardless.

Thoroughly Smashed 1:21 pm 08 Jun 11

p1 said :

What we need in genetically engineered carp that eat algae….

…and other carp.

chewy14 12:36 pm 08 Jun 11

Watson said :

Keijidosha said :

Why not cure the source of the problem (high nutrient loads) rather than try to treat the symptoms?

Besides, if the purpose of this device is to agitate the water, why not open the lake up to powered watercraft. You achieve the same result and provide additional public ammenity. Win/win.

It’s too technical for me, but: “The SolarBee® has an adjustable intake hose that creates long-distance circulation either within the epilimnion or down into the hypolimnion, depending on lake management objectives.” That sounds like quite a specific strategy that does a bit more than just agitate the water any old way. Not to mention the big difference between this and powered watercraft: the noise level.

I think it looks great! And while I agree that it would be more effective to treat the source of the problem, I have little confidence that they would be able to identify and reduce all the nutrient run-off sources within an acceptable time frame. I want to be able to swim in that lake and I want it now! Well, maybe not now, it’s bloody cold out there. But if they could trial it this summer, that would be fantastic.

Yes,
your powered watercraft isn’t quite the same as this equipment.
Basically they’re big destratifiers.
http://en.wikipedia.org/wiki/Destratification

Grumpy Old Fart 12:29 pm 08 Jun 11

Well finally something that might actually be of benefit to the community. Instead of a useless phallic owl we could have active bees on the lake cleaning up the water. They might also become fish attractors as fish like structures in the water to hide around.

Bring on the bees

p1 12:25 pm 08 Jun 11

In amongst that rant I forgot to say that the solar-powered-pontoon-turbine-hose-pump-device looks like a pretty nice idea, especially if it works.

p1 12:24 pm 08 Jun 11

Keijidosha said :

Why not cure the source of the problem (high nutrient loads) rather than try to treat the symptoms?

A lot has been done over the years to try exactly that, but you can only try so hard to convince people that they don’t need to fertilise their laws. People like nice green golf courses, European trees drop lots of leaves at once, and no one is really interested in building a water treatment plant at at the creeks leading into the lake.

What we need in genetically engineered carp that eat algae….

Watson 12:12 pm 08 Jun 11

Keijidosha said :

Why not cure the source of the problem (high nutrient loads) rather than try to treat the symptoms?

Besides, if the purpose of this device is to agitate the water, why not open the lake up to powered watercraft. You achieve the same result and provide additional public ammenity. Win/win.

It’s too technical for me, but: “The SolarBee® has an adjustable intake hose that creates long-distance circulation either within the epilimnion or down into the hypolimnion, depending on lake management objectives.” That sounds like quite a specific strategy that does a bit more than just agitate the water any old way. Not to mention the big difference between this and powered watercraft: the noise level.

I think it looks great! And while I agree that it would be more effective to treat the source of the problem, I have little confidence that they would be able to identify and reduce all the nutrient run-off sources within an acceptable time frame. I want to be able to swim in that lake and I want it now! Well, maybe not now, it’s bloody cold out there. But if they could trial it this summer, that would be fantastic.

dannybear 11:39 am 08 Jun 11

wont that just make the carp problem worse?

Keijidosha 10:47 am 08 Jun 11

Why not cure the source of the problem (high nutrient loads) rather than try to treat the symptoms?

Besides, if the purpose of this device is to agitate the water, why not open the lake up to powered watercraft. You achieve the same result and provide additional public ammenity. Win/win.

steveu 10:00 am 08 Jun 11

can they put them in the other lakes too? lake Tuggeranong looks like a sludgepit. Maybe time to drain the lake, pump the water to farms and clean up the mess.

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