Development of Cotton Linter Nanocellulose for Complexation of Ca, Fe, Mg and Mn in Effluent Organic Matter

Water

José Cláudio Caraschi¹  Vinícius de Jesus Carvalho de Souza¹  Danielle Goveia¹  Luciana Camargo de Oliveira²  Wander Gustavo Botero³ 

[1] Campus of Itapeva, São Paulo State University (UNESP), São Paulo 18409-010, Brazil;Department of Physics, Chemistry and Mathematics, Graduate School of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), Rodovia João Leme dos Santos, SP-264, São Paulo 18052-780, Brazil;Institute of Chemistry and Biotechnology, Federal University of Alagoas (UFAL), Maceió 57072-970, Brazil;

关键词: aquatic humic substances;    nanomaterials;    metallic ions;    water;    bioavailability;   

DOI  :  10.3390/w13192765

来源: DOAJ

【 摘 要 】

Effluent organic matter (EfOM) is present in different domestic and industrial effluents, and its capacity to hold metallic ions can interfere in the wastewater treatment process. Due to the low quality of water, new sustainable technologies for this purpose have become extremely important, with the development of renewable-source nanomaterials standing out in the literature. Nanocellulose (NC) deserves to be highlighted in this context due to its physicochemical characteristics and its natural and abundant origin. In this context, the interactions between NC extracted from cotton linter, organic matter fraction (humic substances) and metal ions have been evaluated. Free metal ions (Ca, Fe, Mg and Mn) were separated by ultrafiltration and quantified by atomic absorption spectrometry. The nanomaterial obtained showed potential for the treatment of effluents containing iron even in the presence of organic matter. The probable interaction of organic matter with NC prevents the efficient removal of calcium, magnesium and manganese. For these elements, it is desirable to increase the interaction between metal and NC by modifying the surface of the nanomaterial.

【 授权许可】

Unknown