PROBLEM TO BE SOLVED: To provide a medicinal purified water production apparatus etc. in which the heating part necessary for hot water sterilization of free chlorine removal means is hard to become large and the amount of discharged water during hot water sterilization operation is hard to become large.SOLUTION: Provided is a purified water production unit 1 which is a medicinal purified water production apparatus for purifying water-to-be-treated and producing purified water which is water for pharmaceutical use, and is characterized to include: a pump P1 for delivering water-to-be-treated a warming device 30 for heating the water-to-be-treated delivered by the pump P1 an activated charcoal tower 40 for removing free chlorine contained in the water-to-be-treated heated by the warming device 30 a prefilter 50 for removing solid content from the water-to-be-treated from which free chlorine has been removed by the activated charcoal tower 40 and a pipe arrangement H8 for returning the water-to-be-treated from which solid content has been removed by the prefilter 50 to the pump P1 when sterilizing the activated charcoal tower 40 and the prefilter 50 with hot water.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】遊離塩素除去手段を熱水殺菌する際に必要な加熱部が大きくなりにくく、熱水殺菌を行う際の排水量が多くなりにくい医薬精製水製造装置等を提供する。【解決手段】被処理水を精製し、製薬用の水である精製水を製造する医薬精製水製造装置であって、被処理水を送出するポンプP1と、ポンプP1により送出された被処理水を加熱する加温装置30と、加温装置30により加熱された被処理水に含まれる遊離塩素を除去する活性炭塔40と、活性炭塔40により遊離塩素が除去された被処理水から固形分を除去するプレフィルタ50と、活性炭塔40およびプレフィルタ50を熱水により殺菌するときに、プレフィルタ50により固形分が除去された被処理水をポンプP1に戻す配管H8と、を備えることを特徴とする精製水製造ユニット1。【選択図】図1
