| 摘要 |
PROBLEM TO BE SOLVED: To make simple regeneration possible even in a home, to use unnecessary packings for gardening soil, and to enable use without producing refuse substantially by being incorporated with Na-type zeolite or a zeolitelike substance featured by the exchange capacity of Ca ions at a prescribed temperature being at least a prescribed value as Ca to a prescribed amount of zeolite or a zeolitelike substance. SOLUTION: The packings for treating water contain Na-type zeolite or a zeolitelike substance featured by the exchange capacity of CaO ions at 25 deg.C being at least 120 mg as CaO to 1 g of zeolite or a zeolitelike substance. The zeolite or the zeolitelike substance is a crystalline inorganic oxide which had a molecule-sized pore diameter. Although the composition of the zeolite is not 6 limited in particular, it is preferable to have a large ion exchange capacity. For that purpose, a crystalline metasilicate in which the metal portion is of a divalent metal is preferable in terms of an ion exchange capacity. As a kind of zeolite to be used preferably, X, Y, P-type zeolite and others are named.
|
