Does A Carbon Filter Remove Fluoride

artellan · May v, 2017

Hi! This is my get-go post on physicsforums. I wasn't sure if information technology belonged here or in the Chemical science forum, but just picked here.

I am trying to effigy out if my drinking water filter system removes some fluoride from my water. (I know it doesn't remove all as it's not specifically a fluoride filtering organisation.) It's a dual filter carbon block undersink system, made by GE (FQSVF is the filter). Although the manufacturer claims that it does non remove fluoride, I have read that activated carbon filters may actually reduce 40-lx% of fluoride in water, particularly when fluoride is existence added to the water supply in the form of man-made forms of fluoride such as hexafluorosilicic acid.

Here is a quote from Aquasana.com who make a similar activated carbon system:
"Aquasana systems practise remove ii of the iv fluorine isotopes, giving yous a 40-60% overall reduction. The portion of the fluoride our organisation filters out is the constructed portion, while leaving in the naturally occurring fluoride. However, y'all will non find this on our performance data sheet because of the percentage of reduction. Our testing documents just list those contaminants that have been certified to be removed at a rate of 97% or greater, then we cannot include fluoride on the list. "

Does that quote even make sense from you know of h2o filters? If so, is it reasonable to suspect that my GE system would operate similarly with respect to fluoride?

Annotation my filter specs can be found at:
http://products.geappliances.com/ApplPro… [Broken]

Thanks in advance.
Mike
Winnipeg, Canada

meplumber

I am not an engineer, simply a plumber. Water treatment has become higly gov't regulated in both the United states and Canada. Most manufacturers merely publicize the contaminants that they can remove above the federal mandates. Which for about contaminants is the 97% that y'all mentioned.

I cannot speak to the chemical processes at play inside of the Activated Charcoal/Carbon filters. I feel that I am merely qualified to say that removal of synthetic additives is very mutual with h2o treatment systems of all types.

Sad that I could non be more helpful.

Good Luck.

artellan

Thanks very much for the reply. I've really submitted the question to GE client service, and already got a response maxim they would research information technology for me. So hopefully I volition become some kind of answer ...

At the very least I can probably make them explain the statement on the box that information technology "does not remove fluoride", i.e. does that mean it'southward guaranteed to not remove Whatsoever fluoride, or only that it doesn't remove more than 97% of fluoride (or perhaps, merely remove synthetic fluoride).

It'due south kind of funny, you'd think their marketing department would realize that for most people who buy filtration systems, removal of fluoride is a PLUS!

Cheers
Mike

artellan

Only noticed a reply from GE in my inbox. I must say I'yard impressed with their responsiveness then far (email on a Saturday morning!) ... hopefully their "SmartWater team" that is doing further enquiry will be able to give a useful answer.

Here is the email:

Good Morning time!

Give thanks you for your assist as well! ... I should exist getting a response from our research team here within the next 24 hours.

I have forwarded your email to our SmartWater team for review and handling likewise. They will contact you as soon as possible to provide further aid and respond whatever additional questions yous may have.

Thank y'all once again for contacting GE and I apologize for whatever inconvenience this situation has caused you. I capeesh your patience and please don't hesitate to contact united states of america in the time to come should you need further assistance. Have a nice day.

Cordially,
...

Appliance Specialist
Consumer e-Response Squad
GE Appliances

artellan

Well, in the terminate GE did non provide any answers, they simply said "nosotros have non made any public statements well-nigh fluoride removal".

I actually thought the filter box said "does non remove fluoride" merely I checked again and it doesn't say that (it doesn't mention anything well-nigh fluoride anywhere). It'due south really on various third-political party sellers' websites (e.g. filtersfast.com) that it says "FQSVF does not remove fluoride" but peradventure that's not official GE argument.

So, the filter may or may not remove some fluoride; GE is non providing any data on that.

Someone on yahoo answers said that the Aquasana statement about fluorine isotopes doesn't make whatsoever sense, and therefore they can't be trusted. I'1000 inclined to retrieve that might exist the case. But it might as well be the case that they did exam and establish their filter removes xl-60% of fluoride, and information technology was a non-scientific marketing person who wrote the explanation on their website.

So final determination is, my carbon block filter may or may not be removing some fluoride, and there's no fashion to discover out unless I actually get my water tested!

cyclonis

Artelan if y'all are yet around ...i found some interesting information while browsing and viewing your mail on this forum...

http://world wide web.cda-adc.ca/jcda/vol-74/event-v/443.html

Results: Hollow-fibre membrane filters did non bear on fluoride concentrations in the fluoridated h2o, just activated-carbon filters removed some fluoride, especially from the pure-water solution. Filtering a pure-h2o solution with a fluoride concentration of 0.8 mg F/L reduced the fluoride concentration until 210 50 of the solution had been filtered. However, filtering a tap-water solution of 0.viii mg F/Fifty reduced the fluoride concentration only until 8 L had been filtered. The concentration of captivated fluoride in the filter at x 50 of filtration was four.7 mg/kg activated carbon.

ironically plenty from the Periodical of the Canadian Dental Association

but they inadvertently said there are some truths to the carbon filtration. Thats why they are not immune to talk about information technology because the corp government would **** their pants if people stacked up multiple carbon filers persay down the same line ;)

artellan

Wow, thank you for the information cyclonis. Very interesting. So it appears that immediately subsequently changing my filter it may be removing a fair fleck of fluoride, but that such filtration ability falls off quickly the more than water is filtered.

Of class, it'southward hard to say how much that study applies to my situation (their tests were using sodium fluoride, whereas Winnipeg is using Hydrofluosilicic Acid).

I take been considering an fluoride filter which can be added inline to my existing filter: http://www.pure-earth.com/fluoride-water-filters.htm

And of course, hoping to become a bunch of people to sign the 'fluoride gratis winnipeg' petition.

Thank you once again!

cyclonis

No Prob....ironically plenty im trying to go my municipality to cease fluoride...we take a fluoride free toronto site already ;) .... i sent a letter to york region.

redwhitechem

No, it has no affect to remove fluoride. Y'all were wasting money to purchase such filter. Besides, fluoride is practiced to teeth,that was why government put it into drinking water.

Drakkith

Thread locked for moderation.

Drakkith

I thought so too @hitechem, but Harvard disagrees. Fluoride reduces IQ. The use of fluoride needs to be stopped until information technology has been studied more: http://grand.huffpost.com/u.s.a./entry/2479833

The written report does not support that the levels of fluoride found in drinking water have an effect on IQ. It looked at levels much college than that establish in drinking water.

Since this thread is and so quondam it's been decided to go out it locked.

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