For the water purifier, a mineral addition part which is filled with mudstone parts in Shimanto strata made like an appropriate small broken stone and from which the minerals are added to passing water, and an impurity removing part filled with active carbon for executing impurity removing action to the water containing the minerals sent out from the mineral addition part are connected in the order.例文帳に追加

適宜の小砕石状とした四万十層中の泥岩質部分を充填した、通水にミネラルを添加するミネラル添加部と、このミネラル添加部から送出されるミネラル含有水に対し不純物除去作用を施す、活性炭を充填した不純物除去部とを、この順に接続して構成したことを特徴とする浄水器。 - 特許庁