Reductions in cod and acute toxicity of wastewater generated from refined cotton production using activated carbon fibre (ACF)

Abstract

Activated carbon fibre is investigated for adsorption of organic pollutants from wastewater generated from refined cotton production. UV-Vis spectroscopy and FTIR are used to evaluate the chemical changes. Results indicate that the main organic components of refined cotton production wastewater are guaiacyl (G-) and hydroxyphenyl (H-) lignin. It is found that 85% of COD can be removed at 40 • C with ACF dosage of 90 g L −1 . The adsorption process is described by the Redlich-Peterson isotherm model. The kinetic data follows a pseudo-second-order equation. Over 99% of acute toxicity for Refined Cotton Production (RCP) wastewater has been reduced after adsorption using ACF.

Viabilidade De Preparação De Carvão Ativado a Partir De Resíduos De Biomassa Para Utilização Em Cosméticos: Uma Revisâo Sistemática Da Literatura

“…9 Shen, et al, 2011;Hu, et al, 2014;Saha, et al, 2018;Gao, et al,2013;Correa, et al, 2017;Zhao, et al, 2013;Shen, et al, 2013;Bu, et al, 2014;Guilarduci et al, 2006 Casca de coco 4 Shrestha, et al, 2013;Xianghai, et al, 2015;Li, et al, 2018;Wang, et al, 2011 De acordo com os resultados obtidos a lignina é o resíduo mais reutilizado para produção de carvão ativado para utilização em produtos cosméticos e de higiene pessoal seguindo os critérios de inclusão e exclusão adotados, com nove artigos. Isso pode ser devido grande quantidade de resíduos de lignina, já que se utiliza muito desta biomassa para produção de papel, papelão, dentre outros (Medeiros, et al, 2020).…”

A pore‐scale investigation for recovering adsorptive capacity of activated carbon fibre felt using electrothermal desorption combined with ozonization in‐situ degradation method

“…After activated carbon powder and activated carbon particles, activated carbon fibre (ACF) is identified as the third generation of activated carbon adsorption material. [6] Due to its series of advantages, [7] including high adsorption capacity, fast adsorption/ desorption rate, low internal diffusion resistance, and easy regeneration, [8] porous ACF materials (felt or cloth) have shown their tremendous potential for disposing VOCs from the contaminated gas. [9] The adsorption technology for the removal of VOCs using ACF is a typical intermittent cycle process.…”