Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins
Four kinds of resins were investigated for the recovery of 4,4‘-dinitrostilbene-2,2’-disulphonic acid (DNDS), which is present as a pollutant in wastewater, and their adsorption behaviour and mechanisms assessed. One of the resins, YWB-38, exhibited much better adsorption properties towards DNDS tha...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
2006-12-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361707781422004 |
| _version_ | 1797282336289587200 |
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| author | Wei-Ben Yang Jun Fan Aimin Li Quanxing Zhang |
| author_facet | Wei-Ben Yang Jun Fan Aimin Li Quanxing Zhang |
| author_sort | Wei-Ben Yang |
| collection | DOAJ |
| description | Four kinds of resins were investigated for the recovery of 4,4‘-dinitrostilbene-2,2’-disulphonic acid (DNDS), which is present as a pollutant in wastewater, and their adsorption behaviour and mechanisms assessed. One of the resins, YWB-38, exhibited much better adsorption properties towards DNDS than the other two commercial acrylic ester resins XAD-7 and HP2MG. The Langmuir and Freundlich adsorption models were fitted to the experimental equilibrium data when the Langmuir model was found to provide a better fit for all resins over the temperature range studied. The investigation indicates that hydrophobic interaction provides the main mechanism in the adsorption of DNDS onto XAD-4 resin and that such interaction decreases significantly when additional methanol (10%) is added to the DNDS solutions. While the main interaction between the acrylic ester resin and adsorbate is hydrogen bonding, this can be enhanced to some extent by increasing acid concentration. Adsorption dynamics, column adsorption and desorption processes were also investigated to explore the differences in adsorption behaviour and mechanism on the polystyrene resin XAD-4 and acrylic ester resins. |
| first_indexed | 2024-03-07T17:11:21Z |
| format | Article |
| id | doaj.art-0867f487038346958bb079868b621464 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:11:21Z |
| publishDate | 2006-12-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-0867f487038346958bb079868b6214642024-03-03T00:54:10ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382006-12-012410.1260/026361707781422004Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto ResinsWei-Ben Yang0Jun Fan1Aimin Li2Quanxing Zhang3 Jiangsu Engineering & Technology Research Center for Organic Toxicant Control and Resource Reuse, Nanjing 210038, P. R. China Jiangsu Engineering & Technology Research Center for Organic Toxicant Control and Resource Reuse, Nanjing 210038, P. R. China Jiangsu Engineering & Technology Research Center for Organic Toxicant Control and Resource Reuse, Nanjing 210038, P. R. China Jiangsu Engineering & Technology Research Center for Organic Toxicant Control and Resource Reuse, Nanjing 210038, P. R. ChinaFour kinds of resins were investigated for the recovery of 4,4‘-dinitrostilbene-2,2’-disulphonic acid (DNDS), which is present as a pollutant in wastewater, and their adsorption behaviour and mechanisms assessed. One of the resins, YWB-38, exhibited much better adsorption properties towards DNDS than the other two commercial acrylic ester resins XAD-7 and HP2MG. The Langmuir and Freundlich adsorption models were fitted to the experimental equilibrium data when the Langmuir model was found to provide a better fit for all resins over the temperature range studied. The investigation indicates that hydrophobic interaction provides the main mechanism in the adsorption of DNDS onto XAD-4 resin and that such interaction decreases significantly when additional methanol (10%) is added to the DNDS solutions. While the main interaction between the acrylic ester resin and adsorbate is hydrogen bonding, this can be enhanced to some extent by increasing acid concentration. Adsorption dynamics, column adsorption and desorption processes were also investigated to explore the differences in adsorption behaviour and mechanism on the polystyrene resin XAD-4 and acrylic ester resins.https://doi.org/10.1260/026361707781422004 |
| spellingShingle | Wei-Ben Yang Jun Fan Aimin Li Quanxing Zhang Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins Adsorption Science & Technology |
| title | Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins |
| title_full | Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins |
| title_fullStr | Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins |
| title_full_unstemmed | Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins |
| title_short | Recovery of the Dye Intermediate DNDS from Aqueous Solution by Adsorption onto Resins |
| title_sort | recovery of the dye intermediate dnds from aqueous solution by adsorption onto resins |
| url | https://doi.org/10.1260/026361707781422004 |
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