organiccompounds. ... organiccompounds. ... and nanodiamonds were higher than that of activated carbon, which iswidely used as an adsorbent of volatile
In this study, volatile organic compounds of ketone are separated by pervaporation using silicalite-1 ... effectively separate organiccompounds from water because of its high hydrophobicity. ... Pervaporation is mainly used to separate liquid mixtures because it exhibits a high selectivity compared
higher than others like volatile organic compounds over the entire period. ... The concentrations of reduced sulfur compounds (RSC), carbonyl compounds (CC), and NH₃ were generally ... Among target compounds, the concentration of H₂S recorded the maximum value of 3.65 ppm immediately after
and volatile organic compounds. ... These results indicate that odorcompounds form sewage treatment facility are mainly due to sulfur compounds ... be low; correlation coefficient 0.49, but correlation coefficient for theresults of sulfur dioxide and
In this study, we attempt to analyze biofilter"s removal efficiency for volatile organic compounds from ... paint factory. this experiment conducted in a pilot plant with microorganisms immobilized polyurethane ... foam. 7 main components (Toulene, MEK, MIBK, o-Xylene, m-Xylene, Butyl acetate, Ethyl benzene) emitted
carbonyl compounds, reduced sulfur compounds (RSC), and volatile organic compounds (VOC). ... The comparison of spatial patterns indicated that the concentrations of most of the compounds at the ... When the results were compared on a diurnal basis, the afternoon time concentration of most odorous compounds
Volatile organic compounds(VOCs) are harmful substances that contribute to stratospheric ozone depletion ... estimation of VOC emissions by year was gradually increased, and VOC emission due to the utilization of organic ... VOCs in the atmosphere were detected at the highest concentration in industrial complexes.
In this study, the detection characteristics of volatile organic compounds (VOCs) were investigated ... If slope values are derived between ECN and Response Factor (RF) values of each compound, the DI-based ... Likewise, the results at 1:10 split condition showed +1.2% bias.
Nowadays, petroleum separation and volatileorganic compound removal using pervaporation membranes is ... mixture systems including azeotropic mixture, close-boiling mixture, aqueous organic mixtures etc. ... promising membrane technology for the energy saving processes and it has been developed to separate complex
Toluene, xylene, styrene, and ethylbenzene are main volatile organic compounds emitted from painting ... level of ambient VOCs concentration. ... According with the development of gas chromatography equipment, it has been possible to analyze the low
wereinvestigated in formaldehyde (HCHO) and total volatile organic compounds (TVOCs). ... To prevent the pollution of indoor air quality at schools caused by formaldehyde and TVOCs, therecommendation ... as photo-catalysts should be given positive investigation.
Volatile organic compounds and malodors emitted from painting operations are of primary concern in the ... and collected in water circulating pools. ... The activated sludge method that the circulating water pond would be considered as a huge bioreactor
organiccompounds, aldehydes and radon. ... indoor air pollution, and investigated the dose-response slope factor for indoor air pollutants, such as volatile ... Population cancer risks (that is the theoretical cancer deaths) were estimated from exposure to the pollutants
A study on the emission of the volatile organic compounds which is contained within
bisphenol A polycarbonate ... Methylene chloride and toluene were certified and
quantified by Gas chromatography Mass spectrography ... no changes up to 80℃
and then strong change at 120℃.
Volatile flavor compounds of ethyl alcohol, acetic acid, butanol, n-amyl alcohol, iso-pentyl alcohol, ... ethyl acetate, butyl acetate, acetaldehyde and furfural were detected, and main aroma compounds of Gangha-ju ... Anti-microbial activity against several microorganisms was pronounced strong activity over a wide range of test organisms
실험 목적 물과 섞이지 않거나(immiscible) 거의 섞이지 않는 휘발성 유기 화합물(volatileorganic compound)은 물과 유기 화합물의 혼합물을 동시에 증류( ... 또한 초류점도 측정 하였는데 99°C가 측정 되었다. 첫 번째 실험과는 달리 이론값 98.5°C보다 0.5°C가 높은 온도가 측정되었다. ... 아닐린만 넣고 증류한 경우의 초류점은 173°C로 나타났고, 물과 아닐린 혼합용액의 초류점은 99°C로 나타났다.
of yakju (Aroma) Volatilecompounds of rice wine 16 esters 5 alcohols 2 acids 33 volatilecompounds ... Flavor compounds of yakju (Aroma) Over 60% of the total volatile material was comprised of three compounds ... Saccharification Fermentation Major flavor compounds of yakju is organic acids, alcohols, esters, aldehydes
This study reports on the pervaporation separation of a volatileorganic compound(VOC), dichloromethane ... 본 연구는 불소계 폴리실록산이미드 공중합체 막을 이용하여 휘발성 유기 화합물(Volatile Organic Compounds; VOCs)의 일종인 dichloromethane(DCM ... (DCM) from water using fluorinated copolysiloxaneimide membranes.