Fluoride removal
Fluoride removal
(OP)
Hi, I work in a semiconductor company and am looking for treating fluoride in our wastestream.we have a flow of 450-550 gpm and the fluoride concn is around 50 ppm and we want to bring it down to < 5ppm.
I know the conservative technology of lime and Activated alumina, but how do you deal with the sludge.You need to dewater the sludge and dispose it off as hazardous or non hazardous waste depending on the other wastes in the water.
Is there any other means of treating fluoride without any hazzles of sludge.
Thanks
CD
I know the conservative technology of lime and Activated alumina, but how do you deal with the sludge.You need to dewater the sludge and dispose it off as hazardous or non hazardous waste depending on the other wastes in the water.
Is there any other means of treating fluoride without any hazzles of sludge.
Thanks
CD





RE: Fluoride removal
Any way you slice it, you will have a sludge disposal issue. Contact Dave Orlebeke at eoh2o.com or 541-557-4108 about the applicability of his electrolytic oxidation process to fluoride removal, which he has experience with.
Orenda
RE: Fluoride removal
Regards
RE: Fluoride removal
Thanks -
Dave Orlebeke
Aquatic Technologies
(541) 557-4108
RE: Fluoride removal
Of course, if you could find some way to purify the fluoride, you could sell it to the toothpaste manufacturers.
RE: Fluoride removal
How about crystalized reactors for fluoride removal.No sludge, no dewatering its all crystals and its non hazardous and can be left open to sun for drying or have a vaccumm to suck up all the water. but again Disposal? Any ideas as to what can be done with the crystals DAve?
I will send you the analysis soon. Its been crazy around.I am sorry about that.
RE: Fluoride removal
Dave
RE: Fluoride removal
Crystals?? If these are fluoride compounds, which I presume is the case, Bimr's comments about them being a poison is still true, which then puts them into a hazmat catagory.
Orenda
RE: Fluoride removal
Have you contacted companies such as MEMC for help?
http://www.p2pays.org/ref/18/17146.pdf
RE: Fluoride removal
You know what? I will investigate more on this crystal bed reactors for fluoride removal and get back to you guys in a couple of days.
Its a pretty cool concept but the disadvantage of this system is there should be a continuos flow of water to the crystals.If in case the pump fails, the crystals clog and becomes a mess.
Will keep you guys posted.
Regards