302 高感度膜損傷検知システム(水処理技術・解析,大気・水循環保全技術)

概要

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It is important to monitor the treated water quality at drinking water production system where membrane filtration units are installed. In this study, a new sensing system is developed which can identify the damaged membrane module quickly with high sensitivity. The developed system measures electrical resistance change if air bubbles are passed through the sensing region in the permeate water line when the membrane module has some damaged portion and air leakage is anticipated by air pressurizing. This membrane damage sensing technique is not affected by the water quality and is more sensitive than conventional systems such as high sensitivity turbidity or particle meter. The simple mechanism of the developed sensor also makes it economically feasible for installation at each membrane module.
一般社団法人日本機械学会の論文
2006-07-11