SOLID-LIQUID SEPARATING FILTRATION BODY, METHOD FOR WASHING THE SAME AND SOLID-LIQUID SEPARATING APPARATUS USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a solid-liquid separating filtration body having =1 m pore size by which clean water can be obtained by separating the materials suspended in water as solids and which has a structure to be washed efficiently when attachments thereon are removed and to provide a method for washing the solid-liquid separating filtration body. SOLUTION: This solid-liquid separating filtration body to be immersed vertically in the water to be treated is constituted so that an air introducing part or the air introducing part and a washing water introducing part are arranged in the lower part of the filtration body for washing the inside of the filtration body and the upper part of the filtration body is communicated with a pipeline opened to the atmosphere for discharging the used air or the used air and the used washing water and the attachments on the inside of the filtration body peeled off by washing water. This method for washing the solid-liquid separating filtration body is carried out by introducing air or air and washing water through the air introducing part, etc., removing the attachments by shearing force caused by the scrubbing effect of air bubbles and discharging the removed attachments from the pipeline opened to the atmosphere together with the air.