Steam-activated carbon from malt bagasse: Optimization of preparation conditions and adsorption studies of sunset yellow food dye

Lopes, Greice K.P.; Zanella, Heloisa G.; Spessato, Lucas; Ronix, Amanda; Viero, Patrícia; Fonseca, Jhessica M.; Yokoyama, Jéssica T.C.; Cazetta, André L.; Almeida, Vitor C.

doi:10.1016/j.arabjc.2021.103001

Cited by 45 publications

(10 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The percentage of humidity, volatile matter, ash and fixed carbon of BSG were 9.0%, 82.8%, 2.3% and 12.4%, respectively. Similar values were reported by Lopes et al (2021) using a BSG obtained from a local brewery located in south Brazil, for humidity (7.03%), volatile matter (79.42%), ash (1.68%) and fixed carbon (11.87%). This behavior showed that BSG does not show great variation in relation to the local production characteristics of each brewery.…”

Section: Bsg and Biochar Characterizationsupporting

confidence: 85%

“…In addition to these applications, the production of activated carbon (AC), currently known as biochar from BSG has emerged as a promising alternative for the use of this waste (VANDERHEYDEN et al, 2018;GONÇALVES et al, 2017;MACHADO et al, 2020). In a recent study, LOPES et al (2021) optimized the parameters involved in the preparation of biochar from BSG through physical activation and showed that BSG is a potential precursor highly available and ecologically correct to be used with a biochar. In addition, biochar from BSG has shown high rates of adsorption of organic matter and organic compounds such as paracetamol (NADOLNY et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Factors such as time and temperature of pyrolysis are essential factors for obtaining a biochar with a high adsorptive capacity (SCHETTINO et al, 2007). The effect of these variables on the surface area, the adsorption capacity and the pore volume have been studied (LOPES et al, 2021). However;although, currently BSG is commonly used as a precursor to biochar, when it comes to chemical activation, it is not known what are the optimized conditions that result in good adsorption performance for this material.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chromium adsorption studies using brewer’s spent grain biochar: kinetics, isotherm and thermodynamics

et al. 2023

View full text Add to dashboard Cite

Brewer’s spent grain (BSG) is a residue from brewery production, that can be reused as adsorbent of heavy metals like Chromium (Cr). In this study, BSG was used as a biochar for Cr adsorption in batch adsorption experiments. The biochar pyrolysis temperature (500, 600 and 700ºC), pyrolysis time (30, 105 and 180 minutes) and zinc chloride concentration (5, 12.5 and 20%) were evaluated and optimized from a fractional factorial design. An equilibrium adsorption capacity of 78.13 mg.g-1 and a yield of 26.42% were achieved using 700ºC, 30 min, 12.5%. This biochar was applied to the adsorption of Cr in aqueous solution, under different stirring speeds (100, 150 and 200 rpm). The higher agitation speed reduced the adsorption capacity of the coal from 90 to 72 mg.L-1. In addition, the Cr adsorption equilibrium was reached before 100 min. The pseudo-first order model best described the Cr adsorption kinetics. The Redlich-Peterson isothermal model best fitted the experimental data, with the parameter g (close to 1) suggesting Langmuir’s assumptions as the most appropriate to describe the adsorption of Cr on the optimized activated carbon.

show abstract

Section: Bsg and Biochar Characterizationsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chromium adsorption studies using brewer’s spent grain biochar: kinetics, isotherm and thermodynamics

et al. 2023

View full text Add to dashboard Cite

show abstract

“…To study the effect of this parameter on the adsorption of IB onto Sm-TiO2, the reaction time was varied between 10 and 300 min. [33] obtained the equilibrium adsorption of food dye sunset yellow onto steam-activated carbon from malt bagasse within 240 min. The rapid kinetics observed at the start of the experience may be interpreted by the availability of numbers of active sites on the Sm-TiO2 surface at the start of adsorption [34,35].…”

Section: Effect Of Contact Timementioning

confidence: 99%

Performance studies of indigo dye removal using TiO2 modified clay and zeolite ultrafiltration membrane hybrid system

Romdhani¹,

Aloulou²,

Aloulou³

et al. 2021

DWT

View full text Add to dashboard Cite

Dyes contamination causes serious damages to the aquatic life's and human health.With increase in these persistent organic contaminants accumulation around the world, performant environmentally friendly and low cost materials and techniques are required to protect ecosystem and human. In this study, the efficacy of titania-smectite nanocomposites (Sm-TiO2 NCs) at removing indigo blue (IB) dye was assessed by both batch adsorption and hybrid treatment combining adsorption and ultrafiltration (UF) processes. During the adsorption, the effect of different parameters on IB removal such as dose of Sm-TiO2, contact time, pH and IB concentration were studied. The optimal conditions were applied for the Sm-TiO2 during dye removal using adsorption/UF hybrid treatment. At 293 K and pH 2.5, an optimized dose of Sm-TiO2 (100 mg/L) removed 73 % of the IB from a 25 mg/L solution in 240 min with an equilibrium adsorption capacity greater than180 mg/g. The adsorption of IB dye by Sm-TiO2 NCs followed Langmuir adsorption isotherm model and pseudo-secondorder kinetics. The thermodynamic studies revealed that the adsorption process was 2 spontaneous and exothermic. When a hybrid process was applied, a higher IB removal capacity has been obtained with a lower dose of Sm-TiO2 compared to the case of batch adsorption process. In addition, the presence of Sm-TiO2 NCs has been found to reduce the UF membrane fouling. In this case, the adsorption followed by UF treatment applied in two stages was modified to a single stage hybrid process. Permeate flux was increased from 71 L/h.m 2 (only UF) to 182 L/h.m 2 (Sm-TiO2/UF).

show abstract

“…Sendo assim, alternativas sustentáveis têm sido buscadas para o reaproveitamento desse resíduo. Research, Society and Development, v. 11, n. 11, e324111133766, 2022 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v11i11.33766 3 A produção de carvões ativados a partir de resíduos de biomassa vem sendo amplamente estudada e o bagaço de malte é considerado um potencial precursor, visto que é composto principalmente por celulose e hemicelulose, além de lignina e proteínas (Lopes et al, 2021). O carvão ativado é comumente empregado como adsorvente para a remoção de contaminantes.…”

Section: Introductionunclassified

Produção de carvão ativado a partir de bagaço de malte com ativação química utilizando diferentes agentes ativante

Barbosa

Araújo²,

Alves³

et al. 2022

RSD

View full text Add to dashboard Cite

O Brasil é o terceiro maior produtor de cerveja no mundo, alcançando aproximadamente 14 bilhões de litros por ano. Se por um lado a expansão do setor cervejeiro no país produz um incremento significativo no PIB brasileiro, também ocasiona impactos ambientais inerentes ao processo, visto que são produzidos diferentes resíduos durante a produção e o principal deles é o bagaço do malte. Esse trabalho teve como objetivo em investigar o aproveitamento do bagaço de malte por meio da produção de carvão via síntese hidrotérmica com posterior ativação química por pirólise. Primeiramente, avaliou-se os parâmetros tempo (4, 14 e 24h) e temperatura (150, 175, 225 e 250 ºC) da carbonização hidrotérmica, tendo como resposta a eficiência de remoção do corante azul de metileno em solução aquosa. Posteriormente, utilizou-se três agentes ativantes (KOH, H3PO4 e ZnCl2) em duas proporções mássicas (1:1 e 2:1) para produção dos carvões ativados. As diferentes condições foram avaliadas em termos de área superficial (SBET) e eficiência de adsorção. A ativação química foi capaz de aumentar a área superficial dos carvões em aproximadamente 200 vezes. O carvão ativado com KOH apresentou melhor desempenho na remoção do corante, alcançando uma eficiência de 95,39% nas condições submetidas. O aumento na proporção do agente ativante levou a maiores eficiências na adsorção, visto que aumentou a área superficial dos carvões ativados. Todos os carvões apresentaram predominância de mesoporos, confirmada pelas isotermas de adsorção e dessorção de N2 e pela distribuição de tamanho dos poros.

show abstract

Steam-activated carbon from malt bagasse: Optimization of preparation conditions and adsorption studies of sunset yellow food dye

Cited by 45 publications

References 60 publications

Chromium adsorption studies using brewer’s spent grain biochar: kinetics, isotherm and thermodynamics

Chromium adsorption studies using brewer’s spent grain biochar: kinetics, isotherm and thermodynamics

Performance studies of indigo dye removal using TiO2 modified clay and zeolite ultrafiltration membrane hybrid system

Produção de carvão ativado a partir de bagaço de malte com ativação química utilizando diferentes agentes ativante

Contact Info

Product

Resources

About