http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박진용,김재진,서상봉,장문석,정두식 ( Jin Yong Park,Jae Jin Kim,Sang Bong Suh,Moon Seog Jang,Doo Sig Jung ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.3
The spiral wound type RO (reverse osmosis) membrane module (BW30-2540) for brackish water showed the high values of salt rejection rate and recovery rate in the primary performance tests. Therefore, it was selected for applying RO membrane process to groundwater treatment to use the industrial water. In the field test of the groundwater the value of permeate rate was almost constant, 29.93L/㎡·hr, and very stable water quality, TDS (total dissolved solids)=10∼20㎎/L. After the operation of the RO membrane process during 750hrs, the membrane was disassembled from the module and investigated to find the membrane fouling and its sources. The components of the fouling layer in the membrane surface were Si, Mn, Fe, Ca and K, which were supposed to be the source of the membrane fouling. And, the insoluble organic materials, i.e. algae, were accumulated on the membrane surface, and the inorganic salt component involved in the fouling layer was 1.2282%.
정병옥(Byung Ok Jung),정석진(Suk Jin Chung),이영무(Young Moo Lee),김재진(Jae Jin Kim),서상봉(Sang Bong Suh),이경원(Gyung Won Lee) 한국키틴키토산학회 2001 한국키틴키토산학회지 Vol.6 No.1
N/A Antimicrobial activities and antioxidative activities of several water soluble chitosan derivatives with different molecular weights were measured. Antimicrobial activities of chitosans for test cells showed that Staphylococcus aureus exhibited the best activities followed by Escherichia coli, Pseudomonas aeruginosa, Candida albicans. The concentration of the growth suppression of S. aureus was the lowest, followed by E. coli, P, aeruginosa, and C. albicans. Antioxidative activities of chitosan derivatives tended to increase with the molecular weights of chitosan derivatives. Below MW of 2,100, they did not show the antioxidative activities while above 125,000 chitosan derivatives showed the excellent antioxidative activities. High concentration of chitosan derivatives guaranteed the increased antioxidative effects.