Sorption of some textile dyes by beech wood sawdust

Dulman, Viorica; Cucu-Man, Simona

doi:10.1016/j.jhazmat.2008.06.046

Cited by 100 publications

(41 citation statements)

References 32 publications

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“…[12] Lignocellulosic waste materials arising from food and wood industry or agriculture represent a potential alternative to conventional adsorbents. Different adsorbents derived from industrial or agricultural wastes have been successfully used for dye removal from an aqueous solution such as apple pomace, [14,15] peanut hull, [1] sugar bagasse, [16,17] sugar beet waste, [15] barley husk, [18] brewers' spent grain, [19,20] wood sawdust, [15,21] fruit and vegetable peels, [22,11] etc. The main components of lignocellulosic materials responsible for adsorption are polymers: cellulose, hemicellulose and lignin, i.e.…”

Section: Introductionmentioning

confidence: 99%

Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain

et al. 2018

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Brewers' spent grain (BSG), a lignocellulosic waste material, was evaluated as a low-cost adsorbent for the removal of synthetic dyes methylene blue (MB) and Congo red (CR) from aqueous solutions in a batch process. Characterisation of the BSG was performed by chemical analysis, FTIR and SEM. The effects of contact time, initial dye concentration, adsorbent particle size, adsorbent concentration and pH on the adsorption process were investigated. High removal of both dyes ranging from 70 to over 90 % was achieved. It was shown that in both cases (MB and CR adsorption) the process could be interpreted in terms of Langmuir and Freundlich adsorption isotherms. The kinetics of the adsorption process was well described by the pseudo-second-order model. The results indicated the potential use of BSG as a low-cost adsorbent for MB and CR dye removal from aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain

et al. 2018

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“…Dye is not soluble at pH 2 which is why the pH range chosen as 3 to 10. The most dye removal was observed at pH 3 with 100% and as seen in Figure 4 the yield was decreased with increasing pH [16] .…”

Section: The Effect Of Ph On Dye Removalmentioning

confidence: 70%

New copolymer of acrylamide with allyl methacrylate and its capacity for the removal of azo dyes

Yıldırım

Yılmaz

et al. 2015

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“…O método de adsorção utilizando-se de materiais alternativos e naturais como adsorventes vem sendo estudado, visando eficiência e economia em tratamento de efluentes e um melhor aproveitamento de resíduos antes considerados inúteis [4][5][6][7][8][9]. Dentre estes, destacamos a cinza de casca de arroz, que é um resíduo do agronegócio gerado em abundância e que tem despertado o interesse de pesquisadores por suas propriedades adsorventes [10].…”

Section: Introductionunclassified

Determinação do número de ciclos de reuso do adsorvente cinza de casca de arroz no tratamento de um banho residual de tingimento têxtil

Barcellos¹,

Lima²,

Blosfeld³

2016

Eclet. Quim.

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____________________________________________________________________________Resumo: Este estudo avaliou um sistema de fluxo contínuo utilizando cinzas de casca de arroz como adsorvente para tratamento do banho residual de tingimento têxtil. O sistema consistiu na recirculação do efluente numa bureta contendo o adsorvente. Este procedimento foi realizado em cinco ciclos de reutilização do adsorvente. A Demanda Química de Oxigênio e Cor foram determinadas pela estimativa da eficiência do adsorvente em função do tempo, comparando os ciclos de reuso das águas residuais, antes e depois de tratadas com cinzas. A máxima eficiência obtida foi de 91% no 1º ciclo. No entanto, no ciclo 5, a eficiência do adsorvente foi em torno de 46%. Palavras-chave: adsorção, cinza de casca de arroz, corantes reativos ____________________________________________________________________________Abstract: This study evaluated a continuous flow system using rice husk ash as an adsorbent to treat textile bath dyeing residual. The system consisted in recirculating the effluent in a burette containing the adsorbent. This procedure was performed in five cycles of reuse of the adsorbent. Chemical Oxygen Demand and color were determined by the estimate of the adsorbent's efficiency as a function of time by comparing the cycles of reuse bath dying residual, raw wastewater and wastewater treated with ashes. The maximum efficiency obtained was 91% in the 1 st cycle. However, in the 5 th cycle the efficiency adsorbent was near 46%.

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Sorption of some textile dyes by beech wood sawdust

Cited by 100 publications

References 32 publications

Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain

Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain

New copolymer of acrylamide with allyl methacrylate and its capacity for the removal of azo dyes

Determinação do número de ciclos de reuso do adsorvente cinza de casca de arroz no tratamento de um banho residual de tingimento têxtil

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