PROBLEM TO BE SOLVED: To provide a water feed device for dialysis and a water feed method for dialysis capable of suppressing a decline in operation efficiency.SOLUTION: The water feed device for dialysis, for feeding water for dialysis to a dialyzing fluid regulating device as an object of the feed, includes a water generation part for dialysis for generating water for dialysis using an RO module 17, and the water generation part for dialysis has a chlorine dioxide feed part 30 for feeding chlorine dioxide to a primary side of the RO module 17, and a chlorine dioxide decomposition part 41 for decomposing the chlorine dioxide in a secondary side of the RO module 17. The chlorine dioxide feed part 30 comprises a chlorine dioxide generation part 31 for generating chlorous acid by contact of sodium chlorite with ion exchange material, and generating the chlorine dioxide of high purity by contact of the chlorous acid with the catalytic material.COPYRIGHT: (C)2013,JPO&INPIT【課題】稼働効率の低下を抑えることの可能な透析用水供給装置、及び、透析用水供給方法を提供する。【解決手段】ROモジュール17を用いて透析用水を生成する透析用水生成部を備え、供給対象である透析液調整装置に前記透析用水を供給する透析用水供給装置であって、前記透析用水生成部が、前記ROモジュール17の一次側に二酸化塩素を供給する二酸化塩素供給部30と、前記ROモジュール17の二次側に二酸化塩素を分解する二酸化塩素分解部41とを備える。二酸化塩素供給部30が、亜塩素酸ナトリウムとイオン交換物質との接触により亜塩素酸を生成して、前記亜塩素酸と触媒物質との接触により高純度の二酸化塩素を生成する二酸化塩素生成部31を備える。【選択図】図1
