WATER TREATMENT METHOD COMPRISING A RAPID SETTLING STEP FOLLOWED BY A FILLTRATION STEP THAT IS PERFORMED DIRECTLY ON THE MICRO- OR ULTRA-FILTRATION MEMBRANES AND CORRESPONDING DEVICE

摘要

The invention relates to a water treatment method comprising a liquid/solid separation step (1) followed by at least one filtration step (2). The invention is characterised in that the liquid/solid separation step (1) comprises a settling step which is performed at a surface velocity of more than 15 m/h and in that the filtration step (2) is performed directly on at least one microfiltration or ultrafiltration membrane.