Adsorption of congo red using ethylenediamine modified wheat straw

Wang, Zhanwu; Han, Pan; Jiao, Yubin; Ma, Dan; Dou, Chanchan; Han, Runping

doi:10.5004/dwt.2011.1984

Cited by 49 publications

(15 citation statements)

References 41 publications

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“…The activated carbon with large surface area is effective and widely used as adsorbent [3], but its cost is quite high. Therefore, many researchers pay attention to the use of different types of low-cost materials from biomass products such as peanut husk [4,5], sugarcane bagasse [6,7], peanut hulls [8], wheat straw [9,10] as adsorbent. Commercial coffee waste can be used as an available adsorbent to remove cationic dyes from wastewater [11,12].…”

Section: Introductionmentioning

confidence: 99%

Removal of methyl orange (MO) from aqueous solution using cationic surfactants modified coffee waste (MCWs)

Lafi

Hafiane

2016

Journal of the Taiwan Institute of Chemical Engineers

134

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Section: Introductionmentioning

confidence: 99%

Removal of methyl orange (MO) from aqueous solution using cationic surfactants modified coffee waste (MCWs)

Lafi

Hafiane

2016

Journal of the Taiwan Institute of Chemical Engineers

134

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“…The maximum removals of DB56 and BY28 were 94.7% at pH 2-4 and 99.9% at pH 6-10, respectively. The total removal rate of the dyes was 91% at pH [6][7][8][9][10] If iron electrodes are used, the generated Fe ðaqÞ 2þ ions will immediately undergo further spontaneous reactions to produce corresponding hydroxides and/ or polyhydroxides. The Fe(II) ions are the common ions that are generated during the dissolution of iron.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, dye effluents contain chemicals, that are toxic, carcinogenic, mutagenic, or teratogenic to various microbiological, fish species [3]. There are many processes to remove dyes from colored effluents such as adsorption [4][5][6][7][8], precipitation [9], chemical-biological degradation [10], photodegradation [11,12], biodegradation [13,14], chemical coagulation [15,16], Fenton oxidation [17], combined coagulation/flocculation and adsorption [18], and combination of coagulation-flocculation and nanofiltration [19]. EC as an electrochemical method was developed to overcome the drawbacks of *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous decolorization of binary mixture of blue disperse and yellow basic dyes by electrocoagulation

Şengi̇l

Özdemir

2012

Desalination and Water Treatment

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In this paper, electrocoagulation (EC) has been used for the removal of color from solution containing a disperse dye (Disperse blue 56) and a basic dye (Basic Yellow 28) in the same solution. Iron electrodes were arranged in a monopolar fashion. In the EC of the dye mixture, the effects of the supporting electrolyte, initial pH, electrolysis time, and current density were examined. The results indicated that the majority of the aforementioned dyes in the synthetic wastewater were effectively removed when iron electrodes were used as a sacrificial anode. The amount of dye removed was found by the application of the first derivative spectrophotometric method to the synthetic dye mixtures. In the presence of both dye molecules, the optimum pH was found to be 7, optimum NaCl concentration was 3,000 mg L À1 , and optimum current density was 10.89 mA cm À2 . The experimental data were fit to a variety of isotherm models to determine the characteristics of the EC process. The results indicated that the model provided the best fit for the removal of dye mixture.

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“…The authors have already worked on the adsorption of cadmium ions from aqueous solution using granular activated carbon and activated clay [13], zinc onto tea factory waste [14][15][16][17][18], selenium onto granular activated carbon, powdered activated carbon, and bagasse fly ash [19,20], and benzaldehyde and tin onto granular activated carbon [21,22]. There are also other works on adsorption by various researchers [23][24][25][26][27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of lead from aqueous solution onto coir-pith activated carbon

Kumar

Rao

Chand

et al. 2013

Desalination and Water Treatment

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A B S T R A C TAdsorption of lead (Pb(II)) from aqueous solution using H 2 SO 4 -activated carbon developed from coir pith (CPAC) was studied. Batch experiments were performed to explain the effect of initial pH (pH 0 ), contact time, adsorbent dose, and temperature on adsorption. A pH 0 of 5.0, a dose of 1 g L À1 for adsorption at a concentration of Pb of 20 mg L À1 were the optimal conditions. The adsorption of lead onto CPAC was found to be a gradual process and the quasi-equilibrium condition reached in 4 h. The adsorption followed pseudo-second-order kinetics and the adsorption equilibrium followed the Temkin isotherm. Thermodynamic parameters such as DG 0 , DH 0 , and DS 0 were evaluated by applying the Arrhenius and Van't Hoff equations, and it was found that adsorption of Pb(II) on CPAC was spontaneous and endothermic.

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Adsorption of congo red using ethylenediamine modified wheat straw

Cited by 49 publications

References 41 publications

Removal of methyl orange (MO) from aqueous solution using cationic surfactants modified coffee waste (MCWs)

Removal of methyl orange (MO) from aqueous solution using cationic surfactants modified coffee waste (MCWs)

Simultaneous decolorization of binary mixture of blue disperse and yellow basic dyes by electrocoagulation

Adsorption of lead from aqueous solution onto coir-pith activated carbon

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