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ID 4450
Title Transcription
ギャク シントウ マク ショリ ニ ヨル キュウハイスイ ノ ナンスイカ ト カンノウ トクセイ ノ カイゼン
Title Alternative (English)
Softening of Tap Water by Reverse Osmosis Filtration Resulting in the Improvement of the Sensory Quality
File
language
jpn
Author
Nakamura, Soichiro
Dokai, Kazumi
Matsuura, Megumi
Tsuji, Yukiko
Description
Underground water has been used for living water source in Shimane University for 50 years since its establishment in the Nishi-kawatsu area. The building of the Faculty of Education in the University has become old,especially in the water service system. It has been easily assumed that the superannuated service main may have been the cause of deterioration of the water quality in the building. According to a preliminary examination, water quality of the tap water in the building indicated hard water property with extremely high conductivity of 715μ S/cm. Thus, a reverse osmosis filtration system (produced by Shimane Denko Co. by using a reverse osmosis membrane, ESPA^【〇!R】ESPAFREE 75 model, Nitto Denko Co.) has been employed for softening the hyper hard water in this study. Based on the sensory evaluation it was concluded that the resulting soft water with low conductivity of 22 μS/cm has good reputation.
Journal Title
Memoirs of the Faculty of Education, Shimane University. Natural science
Volume
35
Start Page
9
End Page
14
ISSN
05869943
Published Date
2001-12-01
NCID
AN00107941
Publisher
島根大学教育学部
Publisher Aalternative
The Faculty of Education Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Education
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