• 한국동물학회:학술대회논문집
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• 한국동물학회 1998년도 한국생물과학협회 학술발표대회
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• pp.172.1-172
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• 1998

No Abstract, See Full Text

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 1997년도 한국대기보전학회 추계학술대회 요지집
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• pp.64-65
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• 1997

• Environmental Engineering Research
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• 제7권2호
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• pp.67-73
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• 2002

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 1998년도 한국대기보전학회 추계학술대회 발표 논문집
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• pp.358-359
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• 1998

• 한국환경농학회:학술대회논문집
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• 한국환경농학회 2011년도 30주년 정기총회 및 국제심포지엄
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• pp.290-290
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• 2011

• Bulletin of the Korean Chemical Society
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• 제2권3호
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• pp.83-85
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• 1981

Tetrachlorocyclopropene has been prepared smoothly by the dehydrochlorination of pentachlorocyclopropane which could be obtained easily from sodium trichloroacetate and trichloroethylene in 1,2-dimethoxyethane. By the reaction of aromatic hydrocarbons with tetrachlorocyclopropene and aluminium chloride, new substituted phenyltrichlorocyclopropene derivatives have been prepared. The structures of these compounds were characterized by means of spectroscopic methods.

• 공업화학
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• 제10권7호
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• pp.1041-1045
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• 1999

세 가지 종류의 방향족 다이안하이드라이드(6FDA, BTDA, PMDA)와 polydimethylsiloxane(SIDA, 평균 분자량 800)을 단독 다이아민으로 하여 축중합반응에 의하여 폴리실록산이미드(PSI) 막을 제조하였다. 이들은 모두 실록산 30~40 wt % 함유하고 있는 고무상의 고분자로서 낮은 밀도, 높은 비자유부피, 그리고 낮은 표면에너지를 가지고 있었다. 제조된 PSI막을 0.05 wt %의 4가지 혼합용매(ethyl acetate, methylene chloride, trichloroethylene, toluene)에 대해 투과증발 특성을 알아본 결과 이들은 유기용매의 소수성 경향이 증가할수록 높은 선택도와 투과도를 보였다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2001년도 추계학술발표대회
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• pp.537-540
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• 2001

A parallel TBF system that is consisted of two TBFs was developed f ‘ or the long-term treatment of gas-phase trichloroethylene (TCE). Each TBF was operated for TCE degradation or reactivation in a parallel mode, and the effect of switching time and operation variables between the two reactors was investigated. Within 12 hr after switching from TCE degradation to reactivation mode, the MO activity increased up to the initial level. More than 50 % of TCE was degraded for feed concentrations ranging from 5 to 17 ppmv, and completely 100 % removed at concentration of less than 5 ppmv, while TCE removal decreased severely over 28 ppmv. In various empty bed retention times (EBRTs), ranging 상 om 5.2 to 10.7 min, the optimal EBRT was 10.7 min that TCE conversion achieved more than 50 %. For the inlet loading below 23.4 mg TCE/L/day, TCE was entirely removed. The maximal TCE elimination capacity in this system was about 66.63 mg TCE/L/day. During the continuous treatment of TCE over 3 months, TCE removal efficiency was maintained at the range of about 50 %. In these results, the parallel TBF system can be available for the continuously TCE biodegrading operation.

• KSBB Journal
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• 제16권5호
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• pp.511-515
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• 2001

TCE및 TCE 분해산물의 높은 독성으로 인하여 TCE 분해 효소 및 세포 불활성화가 일어나서 장기간 안정되게 반응기 운전이 어렵다는 단점을 극복하고, TCE와 성장기질사이의 경쟁적 저해관계로 인한 처리효율 감소도 막기 위하여 TCE분해단계와 세포 및 효소 재활성화 단계를 구분시킨 2단계 CSTR/TBF 시스템을 개발하였다. B. ceapcia G4를 분해 미생물로 사용하였으며, 탄소원인 phenol과 공기 및 배지가연속적으로 공급되는 CSTR에서 효소 및 세포 재활성를 도모하고, TBF에서는 폐가스에 포함된 기사의 TCE를 공기와 함께 공급하여 B. cepcia G4 미생물막에의한 TCE가 분해되도록 구성하였다. 2단계 CSTR/TBF 시스템은 유입 TCE 농도가 15pp $m_{v}$까지도 100% 수준의 처리 효율을 보여주었으며, 고농도의 TCE를 안정적으로 장기간 처리할 수 있었다.다.

• 한국염색가공학회지
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• 제6권4호
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• pp.17-26
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• 1994

Poly(ethylene terephthalate)(PET) filaments were treated in binary mixtures of organic solvents such as benzyl alcohol/perchloroethylene(BA/PER), benzyl alcohol/trichloroethylene(BA/TRI), benzyl alcohol/ethylene chloride(BA/EC), methanol/perchloroethylene (ME/PER), and methanol/trichloroethylene(ME/TRI). From the equilibrium swelling of PET, total and partial isotherms of PET for sorption of solvent mixtures and isotherms for distribution of the components between the phases were taken. Also the shrinkage and the crystallinity of PET treated with binary mixtures were investigated. The results obtained were summerized as follows: 1. All isotherms for distribution of the components between the phase deviated from the diagonal in system of PET-binary mixtures. Especially in the binary mixtures of ME/PER or ME/TRI, selectivo sorption of chlorinated hydrocarbon PER and TRI by PET occured. 2. The shrinkage of PET treated in binary mixrures was increased to compare with single solvent-treated, but the composition of binary mixtures corresponding to maximum values of shrinkage was not always agreed with the composition of binary mixtures corresponding to maximum values of shrinkage was not always agreed with the composition of binary mixtures exhibiting of the maximum swelling of PET. 3. The crystallinity of PET treated in binary mixtures generally increased than that of single solvent-treated.