Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off
In this study, highly permeable rigid polyurethanes (PU) incorporating calcium oxide (CaO) (PU/CaO) composite materials were prepared via a facile and economic one-pot synthesis method and characterized for remediation of heavy metal-contaminated urban storm water run-off (USR) in a fixed-bed column...
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Taylor & Francis
2016
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| author | Vafaeifard, M. Lee, G. Akib, S. Ibrahim, S. Yoon, Y. Jang, M. |
| author_facet | Vafaeifard, M. Lee, G. Akib, S. Ibrahim, S. Yoon, Y. Jang, M. |
| author_sort | Vafaeifard, M. |
| collection | UM |
| description | In this study, highly permeable rigid polyurethanes (PU) incorporating calcium oxide (CaO) (PU/CaO) composite materials were prepared via a facile and economic one-pot synthesis method and characterized for remediation of heavy metal-contaminated urban storm water run-off (USR) in a fixed-bed column. Column tests were conducted to investigate various parameters, and data were interpreted using the Bed Depth Service Time model to predict service time. Among the media tested, 25% CaO-incorporated PU (PU/CaO-25) had the highest adsorption capacity of Cu(II). PU/CaO-25 had about 2.5-fold higher rigidity (0.38 MPa) than a “typical” rigid polymer (0.15 MPa). Hydraulic conductivity tests showed PU/CaO-25 (avg. 0.4 mm) had a permeability (0.108 cm s−1) equivalent or higher than reference sands. Specific structural features of PU/CaO-25 and the remediation mechanism were also determined using FESEM/EDS, XRD, N2 gas isotherm and chemical equilibrium modeling. Moreover, column tests using simulated USR showed that all heavy metals were removed by PU/CaO-25 to below their regulation levels at ~1,100 bed volumes. Based on the physicochemical properties and functionality, PU/CaO-25 may be useful as an effective filter material in USR treatment and reuse applications. |
| first_indexed | 2024-03-06T05:42:29Z |
| format | Article |
| id | um.eprints-17431 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:42:29Z |
| publishDate | 2016 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | um.eprints-174312017-07-05T02:55:42Z http://eprints.um.edu.my/17431/ Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off Vafaeifard, M. Lee, G. Akib, S. Ibrahim, S. Yoon, Y. Jang, M. TA Engineering (General). Civil engineering (General) In this study, highly permeable rigid polyurethanes (PU) incorporating calcium oxide (CaO) (PU/CaO) composite materials were prepared via a facile and economic one-pot synthesis method and characterized for remediation of heavy metal-contaminated urban storm water run-off (USR) in a fixed-bed column. Column tests were conducted to investigate various parameters, and data were interpreted using the Bed Depth Service Time model to predict service time. Among the media tested, 25% CaO-incorporated PU (PU/CaO-25) had the highest adsorption capacity of Cu(II). PU/CaO-25 had about 2.5-fold higher rigidity (0.38 MPa) than a “typical” rigid polymer (0.15 MPa). Hydraulic conductivity tests showed PU/CaO-25 (avg. 0.4 mm) had a permeability (0.108 cm s−1) equivalent or higher than reference sands. Specific structural features of PU/CaO-25 and the remediation mechanism were also determined using FESEM/EDS, XRD, N2 gas isotherm and chemical equilibrium modeling. Moreover, column tests using simulated USR showed that all heavy metals were removed by PU/CaO-25 to below their regulation levels at ~1,100 bed volumes. Based on the physicochemical properties and functionality, PU/CaO-25 may be useful as an effective filter material in USR treatment and reuse applications. Taylor & Francis 2016 Article PeerReviewed Vafaeifard, M. and Lee, G. and Akib, S. and Ibrahim, S. and Yoon, Y. and Jang, M. (2016) Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off. Desalination and Water Treatment, 57 (54). pp. 26114-26129. ISSN 1944-3994, DOI https://doi.org/10.1080/19443994.2016.1164082 <https://doi.org/10.1080/19443994.2016.1164082>. http://dx.doi.org/10.1080/19443994.2016.1164082 doi:10.1080/19443994.2016.1164082 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Vafaeifard, M. Lee, G. Akib, S. Ibrahim, S. Yoon, Y. Jang, M. Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off |
| title | Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off |
| title_full | Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off |
| title_fullStr | Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off |
| title_full_unstemmed | Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off |
| title_short | Facile and economic one-pot synthesis of rigid functional-polyurethane for the effective treatment of heavy metal-contaminated urban storm water run-off |
| title_sort | facile and economic one pot synthesis of rigid functional polyurethane for the effective treatment of heavy metal contaminated urban storm water run off |
| topic | TA Engineering (General). Civil engineering (General) |
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