A simplified technique to determine intraparticle diffusivity of macro-reticular resins
Both resins and activated carbons are commonly used as adsorbents in water and wastewater treatment. In general, intraparticle diffusion mechanisms within macro reticular resin particles (such as XAD-2000) are different from those in activated carbon particles. Currently, completely mixed batch reac...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2016-11-01
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| Series: | Sustainable Environment Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468203916301601 |
| _version_ | 1819091768446025728 |
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| author | Takashi Kawakita Huan-Jung Fan Yoshimi Seida Junpei Fujiki Eiji Furuya |
| author_facet | Takashi Kawakita Huan-Jung Fan Yoshimi Seida Junpei Fujiki Eiji Furuya |
| author_sort | Takashi Kawakita |
| collection | DOAJ |
| description | Both resins and activated carbons are commonly used as adsorbents in water and wastewater treatment. In general, intraparticle diffusion mechanisms within macro reticular resin particles (such as XAD-2000) are different from those in activated carbon particles. Currently, completely mixed batch reactor (CMBR) technique can be used to determine the intraparticle diffusivity for phenolic compounds adsorbed onto activated carbon systems. However, the technology cannot determine the intraparticle diffusivity accurately if the fluid-film resistance is significant, such as synthetic macro-reticular resins. Therefore, this study develops a technique to determine the intraparticle diffusivities of XAD-2000 resin. This paper characterized the concentration decay curves of para-nitrophenol in CMBR to determine effective pore diffusivity (DP) of the resin. The obtained mean and standard deviation of DP are about 1.1 × 10−5 and 3.2 × 10−6 (cm2 s−1), respectively. The technology developed in this study has the advantages of significant chemical saving and easy operation. |
| first_indexed | 2024-12-21T22:44:58Z |
| format | Article |
| id | doaj.art-236c5956d307471dab88dc1541d47b5f |
| institution | Directory Open Access Journal |
| issn | 2468-2039 |
| language | English |
| last_indexed | 2024-12-21T22:44:58Z |
| publishDate | 2016-11-01 |
| publisher | BMC |
| record_format | Article |
| series | Sustainable Environment Research |
| spelling | doaj.art-236c5956d307471dab88dc1541d47b5f2022-12-21T18:47:43ZengBMCSustainable Environment Research2468-20392016-11-0126624925410.1016/j.serj.2016.09.001A simplified technique to determine intraparticle diffusivity of macro-reticular resinsTakashi Kawakita0Huan-Jung Fan1Yoshimi Seida2Junpei Fujiki3Eiji Furuya4Department of Applied Chemistry, Meiji University, Kawasaki 214-8571, JapanDepartment of Safety, Health and Environmental Engineering, Hungkuang University, Taichung 433, TaiwanNatural Science Laboratory, Toyo University, Tokyo 112-8606, JapanDepartment of Applied Chemistry, Meiji University, Kawasaki 214-8571, JapanDepartment of Applied Chemistry, Meiji University, Kawasaki 214-8571, JapanBoth resins and activated carbons are commonly used as adsorbents in water and wastewater treatment. In general, intraparticle diffusion mechanisms within macro reticular resin particles (such as XAD-2000) are different from those in activated carbon particles. Currently, completely mixed batch reactor (CMBR) technique can be used to determine the intraparticle diffusivity for phenolic compounds adsorbed onto activated carbon systems. However, the technology cannot determine the intraparticle diffusivity accurately if the fluid-film resistance is significant, such as synthetic macro-reticular resins. Therefore, this study develops a technique to determine the intraparticle diffusivities of XAD-2000 resin. This paper characterized the concentration decay curves of para-nitrophenol in CMBR to determine effective pore diffusivity (DP) of the resin. The obtained mean and standard deviation of DP are about 1.1 × 10−5 and 3.2 × 10−6 (cm2 s−1), respectively. The technology developed in this study has the advantages of significant chemical saving and easy operation.http://www.sciencedirect.com/science/article/pii/S2468203916301601Intraparticle diffusivityPNPResinBiot number |
| spellingShingle | Takashi Kawakita Huan-Jung Fan Yoshimi Seida Junpei Fujiki Eiji Furuya A simplified technique to determine intraparticle diffusivity of macro-reticular resins Sustainable Environment Research Intraparticle diffusivity PNP Resin Biot number |
| title | A simplified technique to determine intraparticle diffusivity of macro-reticular resins |
| title_full | A simplified technique to determine intraparticle diffusivity of macro-reticular resins |
| title_fullStr | A simplified technique to determine intraparticle diffusivity of macro-reticular resins |
| title_full_unstemmed | A simplified technique to determine intraparticle diffusivity of macro-reticular resins |
| title_short | A simplified technique to determine intraparticle diffusivity of macro-reticular resins |
| title_sort | simplified technique to determine intraparticle diffusivity of macro reticular resins |
| topic | Intraparticle diffusivity PNP Resin Biot number |
| url | http://www.sciencedirect.com/science/article/pii/S2468203916301601 |
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