Method for regenerating filter material, especially diatomaceous earth

摘要

Regenerating filtering material, especially diatomaceous earth, comprises suspending and conditioning wet filter slurry removed from the filtration stage in a weakly alkaline environment, and washing twice. Each washing step comprises slurrying and solid-liquid removal. The filter slurry is suspended and conditioned in such a way that the surface load changes to prevent re-agglomeration of organic particles. The solid-liquid separation is carried out in a hydrocyclone cascade. An Independent claim is also included for a device for regenerating filtering material, especially diatomaceous earth, comprising a supply container (10) for suspending and conditioning the filter material, separating and washing stages and a washing water supply running counter currently to the separating and washing stages.