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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/wer.10785
|2 doi
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|a pubmed24n1496.xml
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|a eng
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|a Caldera-Villalobos, Martín
|e verfasserin
|4 aut
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| 245 |
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|a Biobased hydrogels and their composite containing MgMOF74 for the removal of textile dyes and wastewater treatment
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 09.08.2024
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Water Environment Federation.
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|a In this work, we report the synthesis of a biobased hydrogel comprised of collagen, chitosan, and polyurethane for the removal of textile dyes. The adsorption capacity of this hydrogel was improved by adding a magnesium metal-organic framework to the semi-interpenetrating polymer matrix yielding a composite hydrogel. Removal of Bismarck Brown and Congo red was studied, and the experimental results fit Freundlich's model. Both hydrogel formulations were tested for the removal of textiles dyes from wastewaters. The magnesium-metal organic framework improved the efficiency of the biobased hydrogel for the removal of direct and mordant dyes reaching up to 89 ± 2%. The composite hydrogel was tested for the removal of Congo Red in a fixed bed column observing the breakthrough point after 168 min. Also, a flocculant material was prepared from collagen and chitosan and was tested for the removal of direct red dye from wastewater removing up to 80 ± 1%. The pretreated wastewater by coagulation-flocculation was treated by adsorption yielding a global removal efficiency of 99%. Finally, the studied hydrogels are potentially biodegradable being completely degraded by the proteolytic action after 22 days. PRACTITIONER POINTS: Composite hydrogels of collagen, chitosan, and MgMOF74 removed efficiently textile dyes from wastewater in batch systems and fixed bed columns. A biobased flocculant of collagen and chitosan significantly improved water quality after coagulation flocculation. Hydrogels were reusable for four cycles, and they can be proteolytically degraded after 22 days
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|a Journal Article
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|a adsorption
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|a industrial waste
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|a physical and chemical treatment
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|a remediation
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4 |
|a wastewater treatment
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1 |
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|a Claudio-Rizo, Jesús Alejandro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cabrera-Munguía, Denis Aidée
|e verfasserin
|4 aut
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|a Burciaga-Montemayor, Nidia Guadalupe
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 94(2022), 9 vom: 15. Sept., Seite e10785
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
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|g volume:94
|g year:2022
|g number:9
|g day:15
|g month:09
|g pages:e10785
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|u http://dx.doi.org/10.1002/wer.10785
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