What is the impact of fluoride-containing wastewater on wastewater treatment?
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What impact does a fluoride concentration of 578 mg/L in wastewater have on wastewater treatment systems and microorganisms? If there is no impact, at what concentration does it start to have an effect? Ignoring the effects of salt (such as on microorganisms)
It’s toxic, right? We have water like this as well; we’re currently carrying out defluorination treatment
Fluorine is toxic; it seems that wastewater discharge regulations require the fluoride level to be below 1 ppm. Not long ago, an industrial area in Ordos had to treat large quantities of fluoride-containing wastewater on a centralized basis. However, their fluorine content is basically between 5 and 10 only; yours is too high. It seems that the common method is to precipitate fluoride ions using lime water. It’s not clear exactly how low the levels can be reduced; if meeting the emission standards is required, resins could be considered. Our company has specialized fluoride-removing resins. If you need samples for testing, please contact us via the message system or by phone.
For imported resins, we need to consider which brand to choose. Purit’s products don’t work well – they are unable to reduce the fluoride level below 1 ppm. Dow’s products also fall short, and Lanxess’s products have their limitations as well with poor performance. The specifics regarding Dow’s products aren’t clear to us. We have this product of our own, which offers excellent fluoride removal capabilities, enabling the level to be reduced below 1 ppm. However, its regenerating agent is different from those used abroad; still, our price is only half of that of similar foreign products. The prices of foreign products are at least over 100,000 per cubic meter. We’re not sure what the results were of the experiments conducted by our colleagues in the technical department. The above are the experimental results for the Ordos project. For reference only.