| 摘要 |
PROBLEM TO BE SOLVED: To obtain a detergent for a permeation membrane for treating water having strong washing effect and no bad influence on the membrane and a human body, and to provide a washing method. SOLUTION: The membrane detergent used for washing of the permeation membrane for treating water is a membrane detergent containing at least one kind selected from the group consisting of L-cysteine hydrochloride, a hydrate thereof and derivatives thereof. In the method for washing the membrane, the permeation membrane for treating water contaminated with an inorganic substance is washed using the membrane detergent. The membrane detergent may be used in a range of 0.02 to 0.2 wt.%. COPYRIGHT: (C)2004,JPO&NCIPI
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