Dear fredE & others
Traditionally, neutralisation of fluoride-containing wastewater with lime is used. But frequently, the amount of lime required for neutralisation is insufficient for adequate fluoride removal. Furthermore, the separation of calcium fluoride from the wastewater is difficult...
Dear Nareshiitr
I am not sure that I understand your posting, but are you saying that you can remova sulfate from water through wet air oxidation? That would be worth a price or two, or I am totally misunderstand your posting.
Could you please specify what kind of technology you have been...
Dear Mike
Your post is from already some time ago. But I still would like to mention that an alternative to the abovementioned technology is the biotechnological production from elemental sulfur. The advantage is that the H2S is produced under ambient conditions. Disadvantage is that it is...
Dear Jeffrop
What kind of concentrations and flows are you dealing with. I suppose that that is quite important information in order to give you advice on useful methods.
Regards,
Jacco
Dear all
There appear to be two threads on the same topic. Have a look at thread thread164-47948. It has some alternative technologies.
Greetings,
Jacco
Dear TomOC
A recent development that does not use amine (results in chemical waste) is based on an absorber with a buffer solution. The H2S that is washed in is converted to elemental sulfur by partical oxidation in a seperate reactor. It will produce reusable elemetal sulfur instead of waste...
