http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Advanced membrane technology for application to water treatment
Magara, Yasumoto,Kunikane, Shoichi,Itoh, Masaki 嶺南大學校 環境問題硏究所 1997 環境硏究 Vol.16 No.2
AbstractFollowing the successful implementation of the MAC21 Project, the New MAC21 Project is being implemented for further development of membrane technology in Japan. The project includes various pilot-scale and laboratory experiments on 1) nanofiltration system, and 2) MF/UF system combined with advanced treatment processes such as activated carbon treatment, ozonation and biological treatment. As the result, it has been shown that both systems are applicable to drinking water treatment. Although a NF system was very effective for the removal of organic contaminants such as precursors of disinfection by-products, it is considered that the development of a proper treatment method for the concentrate will by very important in the future.
BEHAVIOR AND ASSESSMENT OF PESTICIDES IN DRINKING WATER PRODUCTION SYSTEM
AIZAWA,Takako,MAGARA,Yasumoto 嶺南大學校 環境問題硏究所 1995 環境硏究 Vol.15 No.1
The concentration of the pesticides remaining in river water and raw water for tap water supply, located in agricultural area, was measured. As a result, 11 kinds of pesticides were detected. The residual pesticides in water was also degraded by chlorination because of chlorine was a strong oxidant that did not exist in natural condition, and produced by-products. The organo-phosphate pesticides that have P=S bond were easily degraded and produced oxons (P=O) as primary byproduct. Thiobencarb was also degraded by chlorination, and produced chlorobenzyl alcohol, chlorotoluene, chlorobenzyl chloride, chlorobenzoic acid and chlorobenzyl aldehyde as chlorination byproducts. Also, when thiobencarb was detected in raw water, the above byproducts were detected in the filtrated water in a purification plant for water supply. Therefore, the management and control of pesticides in drinking water and ambient water quality management should be scoped the chlorination byproducts.
Development of membrane filtration technology and its application to water supply
Kunikane, Shoichi,Itoh, Masaki,Magara, Yasumoto 嶺南大學校 環境問題硏究所 1998 環境硏究 Vol.18 No.1
Abstract 'MAC 21' and 'New 21' Projects were implemented for the development of membrane technology in Japan. 'MAC 21' Project included a series of pilot-scale experiment on micro- and ultrafiltration (MF and UF, respectively). As the result, it has been shown that MF and UF are excellent in the removal of turbidity and bacteria. 'New MAC 21' Project included various pilot-scale experiments on 1) nanofiltration (NF) after MF/UF, and 2) MF/UF combined with advanced treatment processes such as activated carbon treatment, ozonation and biological treatment. As the result, it has been shown that both of these two treatment systems can remove organic contaminants such as precursors of disinfection by-products well, and, especially, NF is excellent in their removal.