Hello, the pumice, the ...

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Hello, the pumice, the perlite or the Biolite can be used for the treatment of nitrates in the drinking water only as support of culture for one biomass dénitrifiante, that is heterotrophic bacteria fed with a typical organic substratum Ethanol, the whole in strictly anoxic conditions.

SVp look after https://www.suezwaterhandbook.fr/eau-et-generalites