Phosphate reduction methods: Lanthanum Chloride

[lilrobb]

Anyone ever tried that?

It us super-mega potent from what I read - and has virtually no side effects...

 

[Jaycen B.]

How does it get removed from the system once added? This is what is in the liquid phosphate removers is it not.

 

[lilrobb]

It forms a solid and precipitates in the water column.

Same stuff in the liquid removers, always leary about other ingredients - but I found a source of pure stuff now.
50gallons at a time, haha - this would last the GA Aquarium about a year...

 

[Jaycen B.]

Is it more cost effective than gfo? So it precips out then just suck it up off the bottom.?

Edit: or ends up buried in the sand bed.

 

[lilrobb]

Skimmer and filter socks should catch it, recommended to put the DROP you will need in before the socks and skimmers...

Very cheap compared to GFO (about 4$ a gallon, which makes about 200 gallons of reagent.

 

[Jaycen B.]

Sonds cool, I'll do some more research.

 

[ralph atl]

http://www.reefcentral.com/forums/showthread.php?t=2059711&highlight=lanthanum+chloride">http://www.reefcentral.com/forums/showthread.php?t=2059711&highlight=lanthanum+chloride</a>


it works, however, I'm not sure if I would try it...

 

[lilrobb]

I got my LaCl and will start the test this weekend with the assistance of a PO4 meter.
(yes, Ralph - not as accurate as your Hach test kit, but will be much faster and cheaper to test with multiple daily test).

Brightwell sells the same stuff about 100times diluted as their Phosphat-e...

 

[dawgface]

Very interested!

Following.

 

[smallblock]

There was one guy in that other thread where you brought it up, seemed like he said he used it remember?

 

[ralph atl]

Cool, very interested in your results! Update frequently like you are doing will be great!

 

[lifestudent]

mysterybox;690907 wrote: Cool, very interested in your results! Update frequently like you are doing will be great!

Yep! I'd love to see your results posted Robb!

 

[acroholic]

LilRobb;682290 wrote: Skimmer and filter socks should catch it, recommended to put the DROP you will need in before the socks and skimmers...

Very cheap compared to GFO (about 4$ a gallon, which makes about 200 gallons of reagent.

Robb,
Per the RC Reef Chemistry link Ralph posted, it looks like you need a separate reaction loop, meaning a separate reaction chamber where the LC is dosed, reacts with system water, then filters out as L-Phosphate followed through a 10 micron filter sock or the like. It doesn't sound like you want the LC to be circulating in the DT at all.

One thing I can tell you is that a 10 micron filter sock will need to be rinsed often. I use a 50 to catch GFO fines from my BRS reactor and it clogs up pretty quick.

Is this LC a continuous type drip setup, or is this an "as-needed" treatment based on P test levels in the tank?

 

[lilrobb]

a gallon (containing only 11ml of LaCl) is set to drip over 24hrs into the skimmer, which drains through a 10micron sock.
So daily cleaning is a must...

 

[lifestudent]

LilRobb;691013 wrote: a gallon (containing only 11ml of LaCl) is set to drip over 24hrs into the skimmer, which drains through a 10micron sock.
So daily cleaning is a must...

Robb, where did you get the 10 micron sock?

BTW, I had heard that a 100 micron sock was good enough to catch the LaCl bonded to phosphates. Was I misinformed? :confused2:

 

[oil_fan]

You've got my interest. Following...

 

[lilrobb]

First reading (lower than I expected): 0.06ppm
First dose: 1ml of pure LaCl (not diluted)

Introduced into skimmer intake

 

[ralph atl]

Sorry, but ima confused...was the 0.06 before you started? Or after?

 

[lilrobb]

That's the reading prior to any adjustments

 

[ralph atl]

albeit very high for sps, not really that far off to handle quickly...below 0.03...

above 0.03 it's harder for sps to calcify, which maybe why your larger colonies are showing greater stain...no clue, however.