Separable amino-functionalized biochar/alginate beads for efficient removal of Cr(VI) from original electroplating wastewater at room temperatureVisa övriga samt affilieringar
2022 (Engelska)Ingår i: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 373, artikel-id 133790Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
An alginate gel bead composite adsorbent with polyethyleneimine (PEI) as a surface modifier and Eichhornia crassipes (EC) biochar, known as EC-alg/PEI-3, was added internally to the adsorb Cr(VI) from an aqueous environment. The functionalized gel beads were characterized using SEM, XPS, FTIR, and other techniques. The maximum adsorption capacities of EC-alg/PEI-3 were 714.3 mg g−1 at 10 °C and 769.2 mg g−1 at 25 °C. In the treatment of highly concentrated electroplating wastewater, EC-alg/PEI-3 can be dosed at 1.4 g L−1 to reduce the concentration of Cr(VI) to below 0.05 ppm. EC-alg/PEI-3 maintained a competitive adsorption capacity after six cycles. This spherical adsorbent material is easy to prepare, has a very high adsorption capacity, is environmentally friendly, and can be easily recycled. The EC-alg/PEI-3 gel beads are promising for the treatment of industrial wastewater.
Ort, förlag, år, upplaga, sidor
Elsevier, 2022. Vol. 373, artikel-id 133790
Nyckelord [en]
Biochar, Hexavalent chromium removal, High capacity, Polyethyleneimine modification, Room temperature adsorption, Sodium alginate gel beads
Nationell ämneskategori
Vattenbehandlingsbioteknik
Identifikatorer
URN: urn:nbn:se:umu:diva-199369DOI: 10.1016/j.jclepro.2022.133790ISI: 000863089600004Scopus ID: 2-s2.0-85137177735OAI: oai:DiVA.org:umu-199369DiVA, id: diva2:1709201
Forskningsfinansiär
Vetenskapsrådet, 2017–04862Vetenskapsrådet, 2021–04629
Anmärkning
Errata: Yingnan He, Jianbing Chen, Jiapei Lv, Yimin Huang, Shuxing Zhou, Wenyan Li, Yongtao Li, Fengqin Chang, Hucai Zhang, Thomas Wågberg, Guangzhi Hu, Corrigendum to "Separable amino-functionalized biochar/alginate beads for efficient removal of Cr (VI) from original electroplating wastewater at room temperature". Journal of Cleaner Production, Volume 412, 2023, 137375. DOI: 10.1016/j.jclepro.2023.137375
2022-11-082022-11-082025-02-10Bibliografiskt granskad