Preparation of low cost activated carbon from Myrtus communis and pomegranate and their efficient application for removal of Congo red from aqueous solution

Ghaedi, Mehrorang; Tavallali, Hossein; Sharifi, Mahdi; Kokhdan, Syamak Nasiri; Asghari, Alireza

doi:10.1016/j.saa.2011.10.012

Cited by 155 publications

(50 citation statements)

References 47 publications

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“…Various studied by researchers has been conduct on raw and activated carbon agricultural waste [50] such as sugarcane bagasse [8,18,[50][51][52][53][54][55], olive stone [56], date pits [20],langsat peel [34], apple waste [42], macadamia shell [57], rice husk [52], orange peel [58], prosopis juliflora plant [59], bamboo [60], corncob [41], coffee residue [61], pomegranate peel [1,32], coconut shell [11,62] etc. These agricultural waste have been investigated for various dye removal from aqueous solution such as basic dye [15,[63][64], direct dye [11], benzidine-based dye [6], reactive dye [47,65] and others.…”

Section: Agricultural Wastementioning

confidence: 99%

“…[18] analysed the effect of initial dye concentration on removing reactive orange dye where the percentages of removal was noticed to be decrease. In research on Myrtus communis and pomegranate activated carbon [1], the different pattern was obtained. At concentration of 30 mg/L congo red, the percentage of removal was significantly increase with increment of congo red initial concentration.…”

Section: Effect Of Initial Concentrationmentioning

confidence: 99%

“…Without a proper treatment, the disposal of dye wastewater can cause harm for the aquatic species and environment. [1]. Therefore, wastewater from textile industry has to be treated before being discharged into the environment.…”

Section: Introductionmentioning

confidence: 99%

“…Activated carbon have extended surface area, high capacity of adsorption, higher surface reactivity degree and also micro-pore structure which is suitable in eliminating dye from wastewater [41][42][43]. However, treating wastewater by using conventional activated carbon that is available in the market are expensive [1,5,31,[43][44] and its regeneration are even costly [26]. Therefore, various raw material have been examined to produce activated carbon and each presents different properties as some previous research of adsorbent shown in Table 2.…”

Section: Introductionmentioning

confidence: 99%

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Factor Affecting Textile Dye Removal Using Adsorbent From Activated Carbon: A Review

2017

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Abstract. Industrial company such as textile, leather, cosmetics, paper and plastic generated wastewater containing large amount of dye colour. The removal of dye materials are importance as the presence of this kind of pollutant influence the quality of water and makes it aesthetically unpleasant. As their chemical structures are complicated, it is difficult to treat dyes with municipal waste treatment operations. Even a small quantity of dye does cause high visibility and undesirability. There have been various treatment technique reviewed for the removal of dye in wastewater. However, these treatment process has made it to another expensive treatment method. This review focus on the application of adsorbent in dye removal from textile wastewater as the most economical and effective method, adsorption has become the most preferred method to remove dye. The review provides literature information about different basis materials used to produce activated carbon like agricultural waste and industrial waste as well as the operational parameters factors in term of contact time, adsorbent dosage, pH solution and initial dye concentration that will affect the process in removing textile dye. This review approach the low cost and environmental friendly adsorbent for replacing conventional activated carbon.

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Section: Agricultural Wastementioning

confidence: 99%

Section: Effect Of Initial Concentrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Factor Affecting Textile Dye Removal Using Adsorbent From Activated Carbon: A Review

2017

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“…Dye pollution reduction has been exhaustively studied for several years, yet, currently new technologies have been developed to perform and improve dye degradation, making the environment cleaner and reducing pollution. The main and new methods to reduce dye pollution involve activated carbon (GHAEDI et al, 2012), surface modified activated carbons (MOHAMMED et al, 2015), nanoadsorbents (KYZAS; MATIS, 2015), agricultural adsorbent waste (PELÁEZ-CID et al, 2013), other adsorbents (YAVUZ; SAKA, 2013), ozonation (CASTRO et al, 2016), irradiation (HERNÁNDEZ-URESTI et al, 2011), photocatalics (MAHMOODI, 2013, plasma discharge (JIANG et al, 2014), biological methods (KANAGARAJ et al, 2014) and others.…”

Section: Introductionmentioning

confidence: 99%

Impact of Corona Treated Activated Carbon in Anionic and Cationic Dye Adsorption

Pego

Carvalho

Borges

et al. 2017

CERNE

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Dye degradation is a significant topic in environmental science, since dyes can bring several problems to the environment. Activated carbon (AC) is an important material used as adsorbent of these hazardous substances, but need to be improved especially into specific substances. This paper aimed to evaluate the impact of activated carbon surface modified by corona treatment (electric discharge) on adsorption of different dyes. Activated carbons were treated by corona treatment to cause surface modification, modifying exposure time to treatment (2, 5, 8 and 10 minutes). Evaluation of adsorption was performed by adsorption isotherms and kinetic adsorption. Dyes differed in their charge (anionic or cationic) and molecular weight. Dyes used were Methylene Blue (cationic) and Congo Red (anionic). Surface area and Scanning Electron Microscopy (SEM) were also conducted. Surface chemistry was impacted by corona treatment and interfered in dye adsorption. There was decrease of dye adsorption for both dyes according to time exposure. However, the decrease of Methylene Blue (25%) was higher than Congo Red (14%), suggesting that either charge or molecule weight interfere in the adsorption isotherms. In kinetic adsorption, there was no difference between treatments, although there was a difference in adsorption equilibrium. SEM showed that surface was impacted (pore destruction) by corona treatment. Furthermore, estimated surface area was strongly impacted by the treatment, reducing with the increase of time exposure. Thus, textural properties might have contributed to reduce adsorption capacity of both dyes and play a higher role than chemical properties. IMPACTO DE CARVÕES ATIVADOS TRATADOS COM DESCARGA CORONA NA ADSORÇÃO DE CORANTES CATIÔNICOS E ANIÔNICOSRESUMO: A degradação de corantes é um importante tópico nas ciências ambientais, já que os corantes podem trazer diversos problemas para o meio ambiente. O carvão ativado é um importante material usado como adsorvente dessas substâncias causadoras dos mais diversos danos, mas precisam ser melhoradas especialmente quando envolve substâncias específicas. Este manuscrito tem como objetivo avaliar o impacto da superfície de carvões ativados modificados pelo tratamento corona (descarga elétrica) na adsorção de diferentes corantes. Os carvões ativados foram tratados pelo tratamento corona para promover a modificação na superfície, modificando os tempos de exposição ao tratamento (2, 5, 8 e 10 minutos). A avaliação da adsorção foi realizada pelas isotermas de adsorção e velocidade de adsorção. Os corantes diferiram pelas suas cargas (aniônico e catiônico) e massa molecular. Os corantes utilizados foram o Azul de Metileno (catiônico) e o Vermelho Congo (aniônico).A área superficial e a microscopia eletrônica de varredura (MEV) também foram realizadas. A superfície química foi impactada pelo tratamento corona e interferiu na adsorção dos corantes. Houve decréscimo na adsorção dos corantes para ambos de acordo com o tempo de exposição. No entanto, o decréscimo de Azul de ...

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Agro‐Wastes as Low‐Cost Biosorbent for Dyes Removal from Wastewater

Gogoi

Samanta

Dahutia

2022

Agriculture Waste Management and Bioresource

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Preparation of low cost activated carbon from Myrtus communis and pomegranate and their efficient application for removal of Congo red from aqueous solution

Cited by 155 publications

References 47 publications

Factor Affecting Textile Dye Removal Using Adsorbent From Activated Carbon: A Review

Factor Affecting Textile Dye Removal Using Adsorbent From Activated Carbon: A Review

Impact of Corona Treated Activated Carbon in Anionic and Cationic Dye Adsorption

Agro‐Wastes as Low‐Cost Biosorbent for Dyes Removal from Wastewater

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