SOIL WATER PURIFIER

摘要

A soil water purifier for purifying soil water discharged from a toilet (3), comprising shell contact aeration chambers (6, 7) filled with a contact material (15) of shells and arranged to purify soil water introduced to the shell contact aeration chambers (6, 7), wherein the contact material (15) employs shells having the pearl layer (b) on at least the inner surface side thereof removed.