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231229s2023 xx |||||o 00| ||eng c |
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|a 10.1002/wer.10969
|2 doi
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|a pubmed25n1220.xml
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|a (DE-627)NLM36639391X
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|a (NLM)38148739
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Sun, Yongjun
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Preparation of composite coagulant for the removal of microplastics in water
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 28.12.2023
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|a Date Revised 06.01.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2023 Water Environment Federation.
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|a In this work, a composite flocculant (polyferric titanium sulfate-polydimethyldiallylammonium chloride [PFTS-PDMDAAC]) with a rich spatial network structure was prepared for the treatment of simulated wastewater containing polystyrene (PS) micro-nanoparticles. Characterization results showed that the surface of the PFTS-PDMDAAC was a three-dimensional network polymer of chain molecules that exhibited good thermal stability and formed an amorphous polymer containing multiply hydroxyl-bridged titanium and iron. When n(OH- ) : n(Fe) = 1:2, n(PO4 3- ) : n(Fe) = 0.35, n(Ti) : n(Fe) = 1:8, n(DMDAAC) : n(Fe) = 5:100, and the polymerization temperature is 60°C, the prepared composite flocculant has the best effect. The effects of dosage, pH, and agitation intensity on the flocculation properties of PFTS-PDMDAAC were also studied. The optimal removal rates of PS-μm and haze by PFTS-PDMDAAC were 85.60% and 90.10%, respectively, at a stirring intensity of 200 rpm, a pH of 9.0, and a PFTS-PDMDAAC dosage of 20 mg/L. The flocs produced by the PFTS-PDMDAAC flocculation were large and compact in structure, and the flocculation mechanism was mainly based on adsorption bridging. Kaolin played a promoting role in the process of PS-μm removal by PFTS-PDMDAAC floc and accelerated the formation of large and dense flocs. This study provided a reference for the coagulation method to remove micro-nanopollutants in the actual water treatment process. PRACTITIONER POINTS: A composite flocculant with rich spatial network structure (PFTS-PDMDAAC) was prepared. PFTS-PDMDAAC can effectively remove micro-nano polystyrene (PS) in wastewater. The floc produced by PFTS-PDMDAAC is large and compact in structure. The flocculation mechanism of PFTS-PDMDAAC is mainly adsorption bridging
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|a Journal Article
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|a composite flocculant
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|a flocculation
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|a flocculation mechanism
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|a micro-nano pollutant
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|a particle size analysis
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|a poly-N,N-dimethyl-N,N-diallylammonium chloride
|2 NLM
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|a 26062-79-3
|2 NLM
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|a Wastewater
|2 NLM
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|a Microplastics
|2 NLM
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|a Plastics
|2 NLM
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| 650 |
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|a Titanium
|2 NLM
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|a D1JT611TNE
|2 NLM
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|a polyferric chloride
|2 NLM
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| 700 |
1 |
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|a Wu, Qu
|e verfasserin
|4 aut
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1 |
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|a Li, Xiaoqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Wenquan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shah, Kinjal J
|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 95(2023), 12 vom: 01. Dez., Seite e10969
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnas
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| 773 |
1 |
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|g volume:95
|g year:2023
|g number:12
|g day:01
|g month:12
|g pages:e10969
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| 856 |
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|u http://dx.doi.org/10.1002/wer.10969
|3 Volltext
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