Would it be possible to build a floating filter that can filter the blue green algae from rivers and lakes?

Tau.Neutrino said:

Would it be possible to build a floating filter that can filter the blue green algae from rivers and lakes?

MDBA said:

Can blue-green algae be removed?

Blue-green algae are naturally occurring microscopic bacteria and cannot be removed from the River Murray and its tributaries. Chemicals that kill or disperse blue-green algae cannot be used in natural waterbodies due to the impact on other organisms that live in and use the water. See our how blue-green algae blooms are handled page for more information.

roughbarked said:

Tau.Neutrino said:

Would it be possible to build a floating filter that can filter the blue green algae from rivers and lakes?

MDBA said:

Can blue-green algae be removed?

Blue-green algae are naturally occurring microscopic bacteria and cannot be removed from the River Murray and its tributaries. Chemicals that kill or disperse blue-green algae cannot be used in natural waterbodies due to the impact on other organisms that live in and use the water. See our how blue-green algae blooms are handled page for more information.

Filters do not use chemicals

Tau.Neutrino said:

roughbarked said:

Tau.Neutrino said:

Would it be possible to build a floating filter that can filter the blue green algae from rivers and lakes?

MDBA said:

Can blue-green algae be removed?

Blue-green algae are naturally occurring microscopic bacteria and cannot be removed from the River Murray and its tributaries. Chemicals that kill or disperse blue-green algae cannot be used in natural waterbodies due to the impact on other organisms that live in and use the water. See our how blue-green algae blooms are handled page for more information.

Filters do not use chemicals

I didn’t say that or suggest it.

Chemicals and sunlight are the main food for blooms. Water temperature is another. We can’t afford to shade the whole river system but we can attempt to reduce the influx of chemicals and we can manage water flows to regulate temerature and oxygen levels of the rivers.

roughbarked said:

Tau.Neutrino said:

roughbarked said:

Filters do not use chemicals

I didn’t say that or suggest it.

Chemicals and sunlight are the main food for blooms. Water temperature is another. We can’t afford to shade the whole river system but we can attempt to reduce the influx of chemicals and we can manage water flows to regulate temerature and oxygen levels of the rivers.

>>>I didn’t say that or suggest it.

True.

some green shades reduce sunlight by 70 percent

could that be used as well

sun shading rivers and lakes, that has been attempted hasn’t it.

has filtering blue green algae been tried?

Ill do some searching

yes it has

Can a water filter combat blue-green algae?
https://cnycentral.com/news/local/can-a-water-filter-combat-blue-green-algae

Water Filtration Technique Removes Dangerous Freshwater Algae Toxins
https://www.sciencedaily.com/releases/2006/08/060823184753.htm

but that appears to be small scale

https://www.mdba.gov.au/sites/default/files/pubs/the-algal-management-strategy.pdf

What about using shade balls ?

Tau.Neutrino said:

What about using shade balls ?

For static bodies of water? yes all this can work but dynamics of river systems are more complicated.

roughbarked said:

Tau.Neutrino said:

What about using shade balls ?

For static bodies of water? yes all this can work but dynamics of river systems are more complicated.

yes, good for lakes

Maybe a test to see if it be possible for rivers if they were tied together and tethered to a tree etc

L.A. Says Goodbye to ‘Shade Balls’
http://www.governing.com/topics/transportation-infrastructure/gov-shade-balls-water-quality.html

L.A. Says Goodbye to ‘Shade Balls’

Maybe we can buy they used shade balls and experiment on some of our worst hit rivers.

Tau.Neutrino said:

L.A. Says Goodbye to ‘Shade Balls’ http://www.governing.com/topics/transportation-infrastructure/gov-shade-balls-water-quality.html

L.A. Says Goodbye to ‘Shade Balls’

Maybe we can buy they used shade balls and experiment on some of our worst hit rivers.

Maybe we can buy their used shade balls and experiment on some of our worst hit rivers.

Water Filtration Technique Removes Dangerous Freshwater Algae Toxins

A water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has found. Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.

more…

I wonder how far they could scale that up to?

Tau.Neutrino said:

Water Filtration Technique Removes Dangerous Freshwater Algae Toxins

A water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has found. Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.

more…

I wonder how far they could scale that up to?

The problems with filtering will probably start at how much are we taking out?

roughbarked said:

Tau.Neutrino said:

Water Filtration Technique Removes Dangerous Freshwater Algae Toxins

A water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has found. Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.

more…

I wonder how far they could scale that up to?

The problems with filtering will probably start at how much are we taking out?

dunno, $ money is not my field

maybe we can look at the blue green algae as a resource for processing ?

place the filtering process on a floating barge of some kind ?

maybe need more filtering near the boom of the river and towed ?

or a mobile land based platform that can be moved into another location

I wonder if its also possible to process the filtering so that it could be collected and used for feeding the fish ?

Tau.Neutrino said:

roughbarked said:

Tau.Neutrino said:

Water Filtration Technique Removes Dangerous Freshwater Algae Toxins

A water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has found. Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.

more…

I wonder how far they could scale that up to?

The problems with filtering will probably start at how much are we taking out?

dunno, $ money is not my field

maybe we can look at the blue green algae as a resource for processing ?

place the filtering process on a floating barge of some kind ?

maybe need more filtering near the boom of the river and towed ?

or a mobile land based platform that can be moved into another location

I wonder if its also possible to process the filtering so that it could be collected and used for feeding the fish ?

or process the blue green algae and use it as a fertilizer

if that’s possible

Tau.Neutrino said:

Water Filtration Technique Removes Dangerous Freshwater Algae Toxins

A water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has found. Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.

more…

I wonder how far they could scale that up to?

Any amount. Both microfiltration and electrophoresis methods have been trialed at Werribee sewage treatment plant. And both would be 100% effective at removing algal toxins.

PS. More than anything, the real trouble with them is that also remove fertilizer from the water, stopping the result from being used for fertilizing crops.

try using UV light to kill the algae

a drone with a UV light source could fly up and down water courses during detected outbreaks killing the algae in situ

wookiemeister said:

try using UV light to kill the algae

a drone with a UV light source could fly up and down water courses during detected outbreaks killing the algae in situ

Possible. I know that UV light is used in greywater systems to kill pathogens in the wastewater before storage.

Keep in mind that most river algae isn’t the blue-green type. Most is green algae, which is good algae.

mollwollfumble said:

wookiemeister said:

try using UV light to kill the algae

a drone with a UV light source could fly up and down water courses during detected outbreaks killing the algae in situ

Possible. I know that UV light is used in greywater systems to kill pathogens in the wastewater before storage.

Keep in mind that most river algae isn’t the blue-green type. Most is green algae, which is good algae.

One does have to keep a grasp on their bearings.