Textile wastewater treatment using low-cost adsorbent aiming the water reuse in dyeing process

Leal, Tarcísio Wolff; Lourenço, Luís Antônio; Scheibe, Ana Silvia; Souza, Selene M.A. Guelli U. de

doi:10.1016/j.jece.2018.04.008

Cited by 42 publications

(16 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, a fair number of physical, chemical, and biological methods have been employed to embark upon the problem of the removal of these materials from wastewater [2][3][4][5][6][7][8]. Compared to many expensive techniques, adsorption is preferred due to its flexibility, compatibility, low cost, and regeneration ability [9][10][11]. Considering the recent trends in attaining environmental sustainability, scientists are concentrating on utilizing naturally available materials to produce low-cost green adsorbents for the efficient removal of hazardous materials from wastewater [12,13].…”

Section: Introductionmentioning

confidence: 99%

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

et al. 2020

View full text Add to dashboard Cite

In recent years, there has been increasing interest in developing green biocomposite for industrial wastewater treatment. In this study, prawn-shell-derived chitosan (CHT) and kaolinite rich modified clay (MC) were used to fabricate biocomposite beads with different compositions. Prepared composite beads were characterized by FTIR, and XRD, and SEM. The possible application of the beads was evaluated primarily by measuring the adsorption efficiency in standard models of lead (II) and methylene blue (MB) dye solution, and the results show a promising removal efficiency. In addition, the composites were used to remove Cr (VI), Pb (II), and MB from real industrial effluents. From tannery effluent, 50.90% of chromium and 39.50% of lead ions were removed by composites rich in chitosan and 31.50% of MB was removed from textile effluent by a composite rich in clay. Moreover, the composite beads were found to be activated in both acidic and basic media depending on their composition, which gives a scope to their universal application in dye and heavy metal removal from wastewater from various industries.

show abstract

Section: Introductionmentioning

confidence: 99%

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In the current scenario of rising populations and increasing industrial activities, water pollution causes significant destruction in the ecosystem and creates a potential threat to water security as only about 0.03% of global water resources are currently used for human activities. Direct disposal of untreated or inadequately treated industrial effluent into different water sources has been identified as the primary cause of present water pollution [1][2][3]. Textile dyeing, for instance, is pinpointed as one of the most polluting sectors that releases about 5000~10,000 tons of different reactive dyes each year, contributing about 17-20% of industrial water pollution [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Characteristics of Banana Peel in the Removal of Dyes from Textile Effluent

et al. 2021

View full text Add to dashboard Cite

Disposal of reactive dye contaminants in surface waters causes serious health risks to the aquatic living bodies and populations adjacent to the polluted water sources. This study investigated the applicability of banana peels to remediate water contamination with reactive dyes used in the textile industry. A set of batch experiments was conducted using a standard dye solution to determine optimum adsorption parameters, and these parameters were used for the removal of dyes from actual wastewater. Fitting experimental data into the isotherm and kinetic models suggested monolayer dye adsorption with chemisorption rate-limiting step. The maximum adsorption found from modeling results was 28.8 mg/g. Fourier transformed infrared (FTIR) spectra revealed the existence of hydroxyl, amine and carboxylic groups, contributing to high adsorption of dye molecules onto the adsorbent surface. About 93% of the dyes from the standard solution were removed at optimum conditions (pH—7.0, initial dye concentration—100 mg/L, contact time—60 min, and adsorbent dose—0.5 g) while this value was 84.2% for industrial textile wastewater. This difference was mainly attributed to the composition difference between the solutions. However, the removal efficiency for actual wastewater is still significant, indicating the high potentiality of banana peel removing dyes from textile effluent. Furthermore, desorption studies showed about 95% of banana peel can be recovered with simple acid-base treatment.

show abstract

“…These systems can be a good option for the textile wastewater treatment, but, the contamination of activated carbon in the effluent, loss of the activated carbon with discharge sludge and the increase in sedimentation time are some of the serious concerns associated with the hybrid systems. [18] Compared to many expensive techniques among others, adsorption is preferred due to its flexibility, compatibility, low cost, and regeneration ability [5], [19], [20] Adsorption has been found to be an efficient and economical process for the removal of pollutants such as heavy metals, dyes and colour from wastewater. Its availability and eco-friendly nature also contribute to its widely usage.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Textile Waste Water and Sorption of Lead Using Chitosan From Bio-Waste

Oyedeko¹

2021

ETRJ

View full text Add to dashboard Cite

Textile effluent contains different organic and inorganic pollutants, among these are COD and heavy metals such as lead (Pb), chromium (Cr), cadium (Cd), and copper (Cu) used for the production of color pigments. In this study the adsorption capacity of chitosan produced from snail shells as an adsorbent for the treatment of textile effluent and for the removal of lead (Pb2+) from waste water carried out. Batch experiments were performed to study the treatment of textile waste water and the adsorption of lead Pb2+ion unto chitosan. The effect of various experimental parameters (adsorbent dose, contact time and temperature) was studied, and optimal conditions were determined. Batch adsorption study on textile waste water showed 96.9 % COD removal was achieved for carbon dosage of 15mg carbon/100ml of textile wastewater solution. The equilibrium data were analyzed with Langmuir, Freundlich, Temkin, Elovich, Florry Huggins, Jovanovic, Harkin Jura and Dubinin–Radushkevich (DRK) adsorption models. Freundlich isotherm yielded the best fit to the experimental equilibrium adsorption data with a correlation coefficient (R2 ) of 0.991. The adsorption intensity is 1.68. This was closely followed by Langmuir Isotherm with a correlation coefficient (R2 ) of is 0.943. The maximum monolayer coverage (Qo) from Langmuir isotherm model was determined to be 50.51mg/g, KL (Langmuir isotherm constant) is 0.00374L/mg, RL (the separation factor) is 0.217 indicating that the equilibrium sorption was favorable. Adsorption kinetics data for sorption of Pb2+ion unto chitosan were analyzed using the pseudo first order, pseudo second order and intra particle diffusion models. The results indicated that the adsorption kinetic data were best described by pseudo secondorder model. For the thermodynamic studies, the enthalpy change, ΔH°, and the entropy change, ΔS°, for the adsorption processes are -18.10 kJ/mol and -0.0652KJ/mol K respectively. The free energy, ΔG° for the process are 2186.39 J/mol, 3071.761 J/mol, 3689.615J/mol and 4153.032 J/mol at 303K, 313K, 323 K and 333K respectively. The results of thermodynamic parameters evaluated showed that the process was non spontaneous and exothermic in nature. The results show that chitosan can be used as an alternative low-cost adsorbent for treatment of textile effluent and the removal of COD and lead from wastewater

show abstract

Textile wastewater treatment using low-cost adsorbent aiming the water reuse in dyeing process

Cited by 42 publications

References 45 publications

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

Adsorption Characteristics of Banana Peel in the Removal of Dyes from Textile Effluent

Treatment of Textile Waste Water and Sorption of Lead Using Chitosan From Bio-Waste

Contact Info

Product

Resources

About