203. The Study of Applicability of Activated Carbon Fibers (ACF) for Removal of Volatile Organic Compounds (VOCS) in Indoor Environments

Lu, Haifeng; Zimmerman, N.

doi:10.3320/1.2758560

Cited by 2 publications

(2 citation statements)

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“…There are increased awareness of human health risks caused by the emissions of indoor pollutants and their secondary chemicals (Kreiss 1989;Wolkoff et al 1992;Stenberg et al 1994;Norback et al 1995;Wieslander et al 1997;Nordstrom et al 1999;Delfino 2002;Simoes 2002;Pope et al 2004;Mendell 2007 (Ramanathan et al 1988;Graham and Bayati 1990;Liu 1990;Foster et al 1992;VanOsdell et al 1996;Lu 2005;Guo et al 2006;Pei et al 2011Pei et al , 2011b. For this reason, this filter material is most widely used either alone or as base material in the commercial filter industry nowadays.…”

Section: Introductionmentioning

confidence: 95%

Laboratory comparison of relative performance of gas phase filtration media at high and low O ₃ /NO ₂ challenge concentrations (ASHRAE RP-1557)

et al. 2014

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To guide the selection and design of air filter/cleaning devices for improving indoor air quality (IAQ), it is important to be able to assess the performance and characteristics of filter media within a reasonable/practical testing period for low concentration conditions (∼50 ppb) under which they are applied. Our study objectives were to investigate whether filter media showing good performance at high concentrations per ASHRAE Standard 145.1 (ASHRAE 2008) would also perform well at low concentrations, typically indoors, and to explore whether and how existing models for filtration media beds can be applied to predict and extrapolate the experimental performance results obtained under high concentrations. Six filter media having different filtration properties, pellet shape and size, and target compound were selected for this investigation. Experiments were performed at both high (∼1 ppm/100 ppm) and low (∼50 ppb) levels of O 3 /NO 2 concentration for all media selected. Existing models were evaluated for the feasibility of data extrapolation from high to low concentration conditions. The results showed that (1) the relative performance of filter media at high concentration was qualitatively indicative of that from the low concentration results and (2) no existing models were suitable for any media having major catalytic removal characteristics for the cases studied, and an improved mechanistic model needs to be developed.

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Section: Introductionmentioning

confidence: 95%

Laboratory comparison of relative performance of gas phase filtration media at high and low O ₃ /NO ₂ challenge concentrations (ASHRAE RP-1557)

et al. 2014

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“…The advantages of combined biosorbents with immobilized carrier are obvious. The surface of polyacrylonitrile-based carbon fiber (PAN-CF) contains numerous micropores, –OH, –COOH, –C=O and other functional groups, which can adsorb small molecule’s pollutants like organic contaminant and ions in the environment effectively (Lu, 2005). Carbon fiber has good electrical conductivity and chemical stability, so it has multiple potential advantages in developing biosorbents carrier (Yang et al., 2004).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of aquatic Cd²⁺ using a combination of bacteria and modified carbon fiber

Xue

Liu

2017

Adsorption Science & Technology

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Batch experiments were conducted to investigate the capacity and mechanisms for adsorbing Cd 2þ from aqueous solutions by the composite material. The composite material was manufactured with Plesiomonas shigelloides strain H5 and modified polyacrylonitrile-based carbon fiber. Experimental results showed that the surface areas of modified polyacrylonitrilebased carbon fiber increased by 58.54% and pore width increased by 40.19% compared with unmodified polyacrylonitrile-based carbon fiber. Boehm's titration results show the surface acid sites of composite material were increased by 712% compared with unmodified polyacrylonitrilebased carbon fiber. The field emission scanning electron microscope results show P. shigelloides H5 can be grown on the surface of modified polyacrylonitrile-based carbon fiber closely. The equilibrium removal rate and sorption quantity of composite material were 71.56% and 7.126 mg g À1 , respectively. With the pH value of aqueous solution increased, the removal rate of Cd 2þ ions was also increased, but the change of temperature and ionic strength had no significant effect on the removal rate. Furthermore, the results showed the whole sorption process was a good fit to Lagergren pseudo-second-order model and Freundlich isotherms model. Therefore, the results infer that there was a heterogeneous distribution of active sites, and then the sorption process was chemical adsorption and multilayer adsorption. In a word, microbial composite carbon fiber material can adsorb Cd 2þ ions from aqueous solution effectively, which might be helpful in wastewater treatment in the future.

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203. The Study of Applicability of Activated Carbon Fibers (ACF) for Removal of Volatile Organic Compounds (VOCS) in Indoor Environments

Cited by 2 publications

References 0 publications

Laboratory comparison of relative performance of gas phase filtration media at high and low O ₃ /NO ₂ challenge concentrations (ASHRAE RP-1557)

Laboratory comparison of relative performance of gas phase filtration media at high and low O ₃ /NO ₂ challenge concentrations (ASHRAE RP-1557)

Adsorption of aquatic Cd²⁺ using a combination of bacteria and modified carbon fiber

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203. The Study of Applicability of Activated Carbon Fibers (ACF) for Removal of Volatile Organic Compounds (VOCS) in Indoor Environments

Cited by 2 publications

References 0 publications

Laboratory comparison of relative performance of gas phase filtration media at high and low O 3 /NO 2 challenge concentrations (ASHRAE RP-1557)

Laboratory comparison of relative performance of gas phase filtration media at high and low O 3 /NO 2 challenge concentrations (ASHRAE RP-1557)

Adsorption of aquatic Cd2+ using a combination of bacteria and modified carbon fiber

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Laboratory comparison of relative performance of gas phase filtration media at high and low O ₃ /NO ₂ challenge concentrations (ASHRAE RP-1557)

Laboratory comparison of relative performance of gas phase filtration media at high and low O ₃ /NO ₂ challenge concentrations (ASHRAE RP-1557)

Adsorption of aquatic Cd²⁺ using a combination of bacteria and modified carbon fiber