Adsorption interaction between natural adsorbents and textile dyes in aqueous solution

BACKGROUND: Textile industries generate considerable amounts of waste-water, which may contain strong colour, suspended particles, salts, high pH and high chemical oxygen demand (COD) concentration. The disposal of these coloured wastewaters poses a major problem for the industry as well as a threat to the environment. In this study, electrochemical oxidation of Basic Blue 3 (BB3) dye was studied in a bipolar trickle tower (BTT) reactor using Raschig ring shaped boron-doped diamond (BDD) electrodes in recirculated batch mode. The effects of current density, temperature, flow rate, sodium sulfate concentration (Na 2 SO 4 ) as supporting electrolyte, and initial dye concentration were investigated.

show abstract

“…1, 8,9 Membranes: nanofiltration, reverse osmosis, etc. 10,11 Biologicaltechniques: enzymatic decolourization processes.…”

Section: -37mentioning

confidence: 99%

Electrochemical oxidation of Basic Blue 3 dye using a diamond anode: evaluation of colour, COD and toxicity removal

Yavuz

Koparal

Öğütveren

2010

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…For this process to be efficient, in addition to its low cost, it is necessary to choose an adsorbent with high adsorptive capacity, high selectivity, stability and availability (Crini, 2006). The bioadsorbent made using sugar cane bagasse is basically built by macromolecules with humic and fulvic substances, lignin, cellulose, hemicelluloses and proteins that have adsorptive sites such as carbonyl, carboxylic, amine and hydroxyl groups, able to adsorb the dyes by the ion exchange phenomena or by complexation (Dávila-Jiménez, 2005). Besides the characteristics described, the bioadsorbent are found in high quantities at a low cost.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of sugar-cane bagasse as bioadsorbent in the textile wastewater treatment contaminated with carcinogenic congo red dye

Raymundo

Zanarotto

Belisário

et al. 2010

Braz. arch. biol. technol.

View full text Add to dashboard Cite

“…The maximum monolayer capacities, q max , obtained from Langmuir model are 312.5, 163.9 and 556.2 mg g í1 for RBBA, RRR and RTB, respectively. The value of 1/n > 1 which obtained from Freundlich model indicates that saturation was not attained [42]. So, according to the obtained results, in this system saturation was attained and also the adsorbent surface didn't have heterogeneity.…”

Section: Adsorption Isothermmentioning

confidence: 75%

Cetyltrimethylammonium bromide-coated magnetite nanoparticles as highly efficient adsorbent for rapid removal of reactive dyes from the textile companies’ wastewaters

Faraji

Yamini

Tahmasebi

et al. 2010

JICS

View full text Add to dashboard Cite

The utilization of modified magnetite nanoparticles (Fe 3 O 4 NPs) with a cationic surfactant (cetyltrimethylammonium bromide (CTAB)) as an efficient adsorbent was successfully carried out to remove reactive black 5 (RBBA), reactive red 198 (RRR) and reactive blue 21 (RTB) dyes from aqueous solutions. First, a reactor was designed to be simple, repeatable and efficient in its synthesis of Fe 3 O 4 NPs via co-precipitation method. Then, an orthogonal array design (OAD), four factor-four level (4 4 ) matrix was applied to assign affecting factors on removing of the dyes from aqueous solutions. The obtained results from ANOVA showed that the amount of CTAB and NaCl% significantly affect the adsorption of RBBA, RRR and RTB dyes. The sorption kinetics of the dyes were best described by a second-order kinetic model, suggesting chemisorptions mechanism. Also, dye adsorption equilibrium state data were fitted well to the Langmuir isotherm rather than Freundlich isotherm. Also, the maximum monolayer capacity, q max , obtained from the Langmuir was 312.5, 163.9 and 556.2 mg g í1 for RBBA, RRR and RTB, respectively. The obtained results in the present study indicated that the CTAB-coated Fe 3 O 4 NPs can be an efficient adsorbent material for removal of reactive dyes form aqueous solutions.

show abstract

Adsorption interaction between natural adsorbents and textile dyes in aqueous solution

Cited by 131 publications

References 29 publications

Electrochemical oxidation of Basic Blue 3 dye using a diamond anode: evaluation of colour, COD and toxicity removal

Electrochemical oxidation of Basic Blue 3 dye using a diamond anode: evaluation of colour, COD and toxicity removal

Evaluation of sugar-cane bagasse as bioadsorbent in the textile wastewater treatment contaminated with carcinogenic congo red dye

Cetyltrimethylammonium bromide-coated magnetite nanoparticles as highly efficient adsorbent for rapid removal of reactive dyes from the textile companies’ wastewaters

Contact Info

Product

Resources

About