Preparation of hemicellulose-based hydrogels from biomass refining industrial effluent for effective removal of methylene blue dye

Cold caustic extraction (i.e. CCE) is an essential technique for removing hemicellulose from paper-grade pulp and thus obtaining high-purity dissolving pulp in pulp and paper industry. The generated wastewater from the CCE process contains large amounts of valuable hemicellulose which should be prop...

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Veröffentlicht in:Environmental technology. - 1993. - 43(2022), 4 vom: 31. Jan., Seite 489-499
1. Verfasser: Hu, Ningmeng (VerfasserIn)
Weitere Verfasser: Chen, Dong, Guan, QingQing, Peng, Lincai, Zhang, Junhua, He, Liang, Shi, Yuzhen
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Cold caustic extraction process adsorption capacity biomass refinery hemicellulose-based hydrogel methylene blue wastewater Hydrogels Polysaccharides Water Pollutants, Chemical hemicellulose mehr... 8024-50-8 Methylene Blue T42P99266K
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520 |a Cold caustic extraction (i.e. CCE) is an essential technique for removing hemicellulose from paper-grade pulp and thus obtaining high-purity dissolving pulp in pulp and paper industry. The generated wastewater from the CCE process contains large amounts of valuable hemicellulose which should be properly treated in a cost-effective way. Therefore, in this research, the hemicellulose has been used as a raw material for preparing hemicellulose-graft-polyacrylamide (hemi-g-pAAm) hydrogel particles for efficiently adsorbing methylene blue (MB) from aqueous solutions. The mass transfer kinetic behaviours of hemicellulose during a multiple CCE process were also studied. The MB adsorption kinetic test results showed that the removal efficiency can be higher than 90% for the simulated wastewater containing 500 mg/L of MB. Of note, the maximum removal capacities for the wastewater samples containing 500 and 1000 mg/L of MB could be reached up to ∼1800 and ∼2300 (mg/g) respectively with the equilibrium time of ∼40 min. Compared to other reported materials, the superior adsorption performance of the prepared hemicellulose-based hydrogel proved its great potential for application in the wastewater treatment of dye industry 
650 4 |a Journal Article 
650 4 |a Cold caustic extraction process 
650 4 |a adsorption capacity 
650 4 |a biomass refinery 
650 4 |a hemicellulose-based hydrogel 
650 4 |a methylene blue wastewater 
650 7 |a Hydrogels  |2 NLM 
650 7 |a Polysaccharides  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a hemicellulose  |2 NLM 
650 7 |a 8024-50-8  |2 NLM 
650 7 |a Methylene Blue  |2 NLM 
650 7 |a T42P99266K  |2 NLM 
700 1 |a Chen, Dong  |e verfasserin  |4 aut 
700 1 |a Guan, QingQing  |e verfasserin  |4 aut 
700 1 |a Peng, Lincai  |e verfasserin  |4 aut 
700 1 |a Zhang, Junhua  |e verfasserin  |4 aut 
700 1 |a He, Liang  |e verfasserin  |4 aut 
700 1 |a Shi, Yuzhen  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Environmental technology  |d 1993  |g 43(2022), 4 vom: 31. Jan., Seite 489-499  |w (DE-627)NLM098202545  |x 1479-487X  |7 nnas 
773 1 8 |g volume:43  |g year:2022  |g number:4  |g day:31  |g month:01  |g pages:489-499 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2020.1795930  |3 Volltext 
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