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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?
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taxmoneydownthegurgler 11:59 am 15 Jul 11

Yes, these solar bees are obviously a truly wonderous device, how could one not believe the claims in their website or even better, that wholesome source of undisputable facts and data..youtube!
So when my friends farm dam has a BGA problem, the solution is just give it a bit of a stir and problem solved??
There is a basic scientific fundamental that many are overlooking, though some have got it right…there is too much nutrient in the water feeding the algae.
And if one of these particular nutrients happens to be the food source for toxic blue green algae…aka phosphorus…then our lovely lake will produce a fine crop of toxic algae! And no amount of stirring is gunna make it go away. Interesting that toxic algae has been detected in the cooler months (which contradicts one post)….maybe no one told those particular algae that they weren’t allowed out in the cold??
But…the “powers that try’ need a solution..and fast…appease us whinging public first, second …actually try and fix the problem.
Those shiny looking and extremely technical looking floating devices resplendent with powerful solar panels (no CO2 from these puppies, gotta be good) look like the trick…..trick is the key word here..
For goodness sakes, please someone in the appropriate department address the real problem…treat the water or stop the algae food from getting in there. Draining it will work too…but wheres the water coming from to fill it again? The river??!

Deref 7:14 am 14 Jun 11

Watson said :

p1 said :

So we need to open the lake to powered submersible water craft?

Recreational submarines. Cool!

😀

Although if you saw the stinking pea-green soup pouring out of the floodgates when they opened Scrivener Dam, you’d have to say that visibility might leave something to be desired.

Watson 11:32 am 10 Jun 11

p1 said :

So we need to open the lake to powered submersible water craft?

Recreational submarines. Cool!

blowers 11:29 am 10 Jun 11

Are CANTURF helping to pay the cost of the installation? Seems only fair considering the run off from the turf farms is a significant component

p1 10:46 am 10 Jun 11

Keijidosha said :

I’d argue that not much has been done. Queanbeyan’s WTP flushes turds into the Molonglo river at the mere thought of rain, stormwater from Fyshwick (industrial) and Pialligo (nurseries) is discharged directly into the same river, and last time I checked there was a whopping great turf farm on the top end of Jerrabomberra wetland. Possibly one of the least condusive environments to algae prevention!

I believe that a lot could be achieved by establishing wetland barriers to naturally filter the water before it enters the main channel. This has worked in other areas of Australia and there is no reason it couldn’t work here.

I was trying to be positive when I said “a lot”. As you point out, what has been done is a tiny drop in the bucket when compared to what could be done quite quickly. As usual I suspect the reasons that changes have not been made to the inputs you list include lack of political will, lack of funding, and a disconnect between the various authorities with the power to change things.

Deref said :

The last thing we need on the lake is the aquatic equivalent of white Commodores with doof machines.

So we need to open the lake to powered submersible water craft?

Deref 7:25 am 10 Jun 11

Keijidosha said :

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.

You’re kidding, right?

These devices mix water from the bottom to the top. All speedboats do is agitate the top few centimetres, as well as being incredibly noisy. The last thing we need on the lake is the aquatic equivalent of white Commodores with doof machines.

Keijidosha 4:06 pm 09 Jun 11

p1 said :

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.

I’d argue that not much has been done. Queanbeyan’s WTP flushes turds into the Molonglo river at the mere thought of rain, stormwater from Fyshwick (industrial) and Pialligo (nurseries) is discharged directly into the same river, and last time I checked there was a whopping great turf farm on the top end of Jerrabomberra wetland. Possibly one of the least condusive environments to algae prevention!

I believe that a lot could be achieved by establishing wetland barriers to naturally filter the water before it enters the main channel. This has worked in other areas of Australia and there is no reason it couldn’t work here.

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