Study of Adsorption Characteristics a Low-Cost Sawdust for the Removal of Direct Blue 85 Dye from Aqueous Solutions

Abdullah, Rahmah Hashim; Oda, Amjed Mirza; Omran, Alaa Rasheed; Mottaleb, Ameer Salem; Mubarakah, Teeba Mudhefer

doi:10.22146/ijc.31536

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…In the functional group region, between 4000 and 2500 cm −1 , bands A and B can be identified. The broad and blunt shape absorption band at about 3408 ± 0 cm −1 (band A) is assigned to O-H stretching vibrations of water or hydroxyl radicals [ 44 , 45 , 46 , 47 , 48 ]. The absorption band at around 2925 ± 0 cm −1 (band B) is assigned to saturated C-H stretching vibrations, more specifically to CH 2 asymmetric and symmetric stretching vibrations [ 44 , 45 , 46 , 47 ].…”

Section: Resultsmentioning

confidence: 99%

“…The broad and blunt shape absorption band at about 3408 ± 0 cm −1 (band A) is assigned to O-H stretching vibrations of water or hydroxyl radicals [ 44 , 45 , 46 , 47 , 48 ]. The absorption band at around 2925 ± 0 cm −1 (band B) is assigned to saturated C-H stretching vibrations, more specifically to CH 2 asymmetric and symmetric stretching vibrations [ 44 , 45 , 46 , 47 ]. In the region of double bonds, between 2000 and 1500 cm −1 , the sharp shape absorption band at about 1650 ± 1 cm −1 (band C) is assigned to the C=O stretching vibration [ 44 , 47 , 48 , 49 ].…”

Section: Resultsmentioning

confidence: 99%

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Fluoxetine Removal from Aqueous Solutions Using a Lignocellulosic Substrate Colonized by the White-Rot Fungus Pleurotus ostreatus

Silva

Sousa

Hultberg

et al. 2022

IJERPH

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One of the main challenges in both the design of new wastewater treatment plants and the expansion and improvement of existing ones is the removal of emerging pollutants. Therefore, the search for economic and sustainable treatments is needed to enhance the removal of pharmaceuticals. The potential of a lignocellulosic substrate colonized by Pleurotus ostreatus, a waste from mushroom production, to remove fluoxetine from aqueous solutions was studied. Batch assays were performed to remove 600 µg∙L−1 fluoxetine from aqueous solutions using the colonized mushroom substrate (CMS) and crude enzyme extracts. The removal efficiencies achieved were, respectively, ≥83.1% and 19.6% in 10 min. Batch assays with sterilized CMS and 1-aminobenzotriazole (to inhibit cytochrome P450 enzymes) showed that the higher removal efficiencies achieved in the CMS assays may be attributed to the synergistic contribution of biosorption onto the CMS and lignin modifying enzymes activity, namely laccase activity. A column assay was performed with the CMS, fed with 750 µg∙L−1 fluoxetine aqueous solution. The removal efficiency was 100% during 30 min, decreasing to a final value of 70% after 8 h of operation. The results suggested that CMS can be a promising eco-friendly alternative to remove fluoxetine from aqueous solutions.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Fluoxetine Removal from Aqueous Solutions Using a Lignocellulosic Substrate Colonized by the White-Rot Fungus Pleurotus ostreatus

Silva

Sousa

Hultberg

et al. 2022

IJERPH

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“…Regarding the chemistry of the dyes, although both are of different types, one is characterized by a phthalocyanine class with sulfonic group complexed with copper [61,62] and the other by an azo group [63]; both are anionic dyes. Therefore, the FTSH2O membrane has a negatively charged surface [64,65] in the pH range of the FS (pH of 6.65 and 6.97 for MS1 and MS2, respectively), with no adsorption of the dyes occurring on the membrane surface.…”

Section: Influence Of the Type Of Dye On The Concentration Efficiencymentioning

confidence: 99%

Feasibility of Forward Osmosis to Recover Textile Dyes Using Single Salts and Multicomponent Draw Solutions

Cifuentes-Cabezas,

García-Suarez,

Soler-Cabezas

et al. 2023

Membranes

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The textile industry generates large volumes of water characterized mainly by an intense color coming from dyes that are difficult to process due to their synthetic base and the presence of aromatic components. Due to the stricter regulation on the discharge of these effluents, in order to reduce dye waste before discharge into natural channels, alternatives are being sought to manage this wastewater. In this work, the concentration of dyes in simulated wastewater from the textile industry was studied by forward osmosis (with a cellulose triacetate CTA membrane), with the aim of concentrating the dye for its future recovery and reincorporation into the production process. Two dyes of different nature were evaluated to study the efficiency of the proposed process, using NaCl and reverse osmosis brine from a model seawater desalination solution as extraction solutions. It was observed that dye type (reactive or direct) and their charge influence the color rejection with the forward osmosis membrane used. It was able to concentrate the dyes in the feed solution up to approximately 55% with the reverse osmosis brine from the model seawater desalination solution. Finally, the results demonstrate that the FO process is a promising option for concentrating dyes present in wastewater from the textile industry in order to reuse them in the dyeing process.

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“…Adsorption method appeared as the best technique among various dye removal techniques due to its good performance in the removal of different types of coloring materials [2,[4][5]. Regarding the adsorbent material, activated carbon has been commercially used for adsorption process owing to its excellent adsorption ability [6][7].…”

Section: ■ Introductionmentioning

confidence: 99%

Methylene Blue Adsorption onto Cockle Shells-Treated Banana Pith: Optimization, Isotherm, Kinetic, and Thermodynamic Studies

et al. 2020

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Two low-cost wastes, banana pith (BP) and cockle shells (CS) were explored towards methylene blue (MB) removal. The performance of cockle shells-treated banana pith (CS-BP) in MB removal was compared with untreated BP and commercially Ca(OH)2-treated BP (Ca(OH)2-BP). The adsorption efficacy was following the order of BP < CS-BP < Ca(OH)2-BP, indicating the positive role of alkaline treatment towards MB removal and great potential of CS as a low-cost activation material. The optimization of MB removal onto CS-BP was executed by response surface methodology (RSM) with three independent variables (adsorbent dosage (X1), initial pH (X2) and initial MB concentration (X3)), and the optimal condition was achieved at X1 = 1.17 g/L, X2 = pH 7 and X3 = 214 mg/L, with 87.32% of predicted MB removal. The experimental data wellfitted the pseudo-second-order kinetic (R 2 > 0.99) and the Langmuir isotherm (R 2 = 0.999) models, demonstrating the chemisorption and naturally homogeneous process. Thermodynamics study discovered that the MB removal by CS-BP is endothermic, feasible, spontaneous and randomness growth at a solid-solute interface. It is affirmed that CS could be employed as a low-cost activation material and CS-BP as a low-cost adsorbent.

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Study of Adsorption Characteristics a Low-Cost Sawdust for the Removal of Direct Blue 85 Dye from Aqueous Solutions

Cited by 3 publications

References 29 publications

Fluoxetine Removal from Aqueous Solutions Using a Lignocellulosic Substrate Colonized by the White-Rot Fungus Pleurotus ostreatus

Fluoxetine Removal from Aqueous Solutions Using a Lignocellulosic Substrate Colonized by the White-Rot Fungus Pleurotus ostreatus

Feasibility of Forward Osmosis to Recover Textile Dyes Using Single Salts and Multicomponent Draw Solutions

Methylene Blue Adsorption onto Cockle Shells-Treated Banana Pith: Optimization, Isotherm, Kinetic, and Thermodynamic Studies

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