Optimization studies for decolourization of textile wastewater using a sawdust-based adsorbent

Abdulsalam, Khadijat Ayanpeju; Giwa, Abdur-Rahim Adebisi; Adelowo, Joy Motunrayo

doi:10.1016/j.cdc.2020.100400

Cited by 20 publications

(8 citation statements)

References 40 publications

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“…This trend may be attributed to the availability of more adsorption sites and increasing pore surface areas with increasing adsorbent doses. It makes penetration of adsorbate molecules into the adsorption sites easier to the large vacant sites available to be accessed by the dye molecules present in the wastewater under investigation (Kumar et al, 2007;Hassanein and Koumanova, 2010;Abdulsalam et al, 2020) Figure 2: Effects of Adsorbent dose…”

Section: Effect Of Adsorbent Dosementioning

confidence: 99%

“…The effects of contact time on the removal of methyl orange unto PMC was investigated by varying the contact time in the range of 1-10h, while keeping doses, concentration and temperature constant. One Factor Plot increasing contact time until equilibrium is established (Jabli et al, 2011;Ahmad et al, 2019;Abdulsalam et al, 2020).…”

Section: Effects Of Contact Timementioning

confidence: 99%

“…The increase in efficiency with temperature may be due to the increase in the mobility of the dye molecules. This implies that chemically interactions of PMC surface functionality with dyes present in the textile wastewater increases which further enhanced the penetration of the dye molecules onto the PMC pores (Singh and Srivastava, 2001;Verma and Mashra 2010;Abdulsalam et al, 2020) One Factor Plot…”

Section: Effect Of Temperaturementioning

confidence: 99%

“…Negative values of residuals indicate that the actual value is greater than the predicted value while positive value indicates that the predicted value is greater than the actual value. Residual value of zero is an indication that the actual amount is equal to the predicted value on which the comparison is made as shown in the scatter of Figure 8 (Abdulsalam et al, 2020).…”

Section: Diagnostic Case Studymentioning

confidence: 99%

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Optimized Sorption of Methyl Orange using Functionalized Carob Plant Pod

Abdulsalam¹,

Amodu²,

Fakorede³

et al. 2020

JCSN

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One of the most problematic groups of water pollutants is dye, a main constituent of textile industrial wastewater, which is carcinogenic. Therefore, this research delved into adsorption of dyes from textiles and wastewater using acid-treated as an adsorbent. The adsorbent was prepared by functionalizing the pod of carob with concentrated H3PO4. The effects of operational parameters such as adsorbent dosage, contact time, initial concentration of dye and temperature were studied and optimized using central composite design of design of experiment (DOE). The effects of process parameters (contact time, concentration, adsorbent dosage and temperature) on the dye adsorption were determined and optimized. It was observed that the colour removal efficiency increased with an increase in adsorbent mass and contact time. The adsorption process is endothermic as the percentage removal increases with temperature. The optimum contact time, concentration, adsorbent dosage and temperature were found to be 60oC, 9.74hr, 10ppm, and 5g respectively for the maximum decolorization.

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Section: Effect Of Adsorbent Dosementioning

confidence: 99%

Section: Effects Of Contact Timementioning

confidence: 99%

Section: Effect Of Temperaturementioning

confidence: 99%

Section: Diagnostic Case Studymentioning

confidence: 99%

See 2 more Smart Citations

Optimized Sorption of Methyl Orange using Functionalized Carob Plant Pod

Abdulsalam¹,

Amodu²,

Fakorede³

et al. 2020

JCSN

View full text Add to dashboard Cite

show abstract

“…Statistical methods have been the main tools used when seeking to obtain the best conditions in which there is a high efficiency of pollutant removal [4][5][6][7][8]. Statistical methods can be divided into univariate and multivariate methods.…”

Section: Introductionmentioning

confidence: 99%

Dairy Wastewater Treatment with Organic Coagulants: A Comparison of Factorial Designs

Muniz

Pereira

Borges

2021

Water

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Optimization of coagulant dosage and pH to reduce the turbidity and chemical oxygen demand (COD) of synthetic dairy wastewater (SDW) was investigated using a full factorial design (FFD) and full factorial design with center point (FFDCP). Two organic coagulants, polyacrylamide (PAM) and Tanfloc were used. The optimal values of coagulant dosage and pH were determined using a multiple response optimization tool and desirability function. The results obtained revealed that the optimum condition for removing turbidity and COD were at pH 5.0 using 50 mg L−1 of coagulant. The same optimum point was obtained in both experimental designs, indicating a good agreement between them. In optimum conditions, the expected removal of turbidity was above 98% with PAM and above 95% with Tanfloc. The estimated COD removal was above 72% with PAM and above 65% with Tanfloc. The addition of center points with replicates in the factorial design allowed to obtain the estimate of the experimental error with a smaller number of runs, allowing to save time and cost of the experimental tests. Moreover, the addition of center points did not affect the estimates of the factorial effects and it was possible to verify the effect of curvature, allowing obtaining information about the factors at intermediate levels.

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Decolorisation of textile wastewater using biosynthesised iron oxide nanomaterials and Optimisation by Response Surface Methodology

Yadav,

Chander,

Gupta

2024

ChemistrySelect

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In this study, the bacteria (Pseudomonas sp.) was isolated and cultured for biogenic fabrication of Fe3O4 (synthesised using bacterial cell mass) and Fe3O4@ME (synthesised using bacterial extracts) nanoparticles. The biomolecules of the bacterial extract function as a reducing and capping agent, giving the nanoparticle surface negative charges, according to the FTIR and Z potential analysis. The parameters were optimised and screened for indigo blue (IB) dye adsorption onto Fe3O4 and Fe3O4@ME nanoparticles. This work used the Design of the Experimental (DoE) method rather than the conventional one‐variable‐at‐a‐time method. The central composite design (CCD) experiment consisted of 13 experimental runs, and an analysis of variance (ANOVA) was performed to analyse the results. The models for IB dye removal using Fe3O4 and Fe3O4@ME nanomaterials showed adjusted R2 values of 0.99 and 0.99 and predicted R2 values of 0.97 and 0.99, respectively, indicating good model fit. The optimum conditions required for 70 and 64 % colour removal for Fe3O4 and Fe3O4@ME nanomaterials, respectively, are observed at 0.050 gm sorbent doses at the constant room temperature and contact time of 100 min.

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Optimization studies for decolourization of textile wastewater using a sawdust-based adsorbent

Cited by 20 publications

References 40 publications

Optimized Sorption of Methyl Orange using Functionalized Carob Plant Pod

Optimized Sorption of Methyl Orange using Functionalized Carob Plant Pod

Dairy Wastewater Treatment with Organic Coagulants: A Comparison of Factorial Designs

Decolorisation of textile wastewater using biosynthesised iron oxide nanomaterials and Optimisation by Response Surface Methodology

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