Hybrid Adsorbents for Dye Removal from Wastewater

Moattari, Rozita M.; Mohammadi, Toraj

doi:10.1007/978-3-030-47400-3_16

Cited by 11 publications

(4 citation statements)

References 204 publications

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“…The orthogonal arrays are shown in Table 2. Factors studied include temperature (25-35 °C), solution pH (3)(4)(5)(6)(7)(8)(9), adsorbent (100-300 mg), ionic strength (0-6 w/v%), dye (a) (b) concentration (6-10 mg L -1 ) and sonication time (3-9 min). Applying the Taguchi method, only 27 experiments are required to obtain the optimal levels of the variables (Table 2), while the most accurate optimization method for a complete study of seven variables at three levels requires 2187 experiments (3 7 = 2187), which is practically timeconsuming.…”

Section: Experimental Design 231 Taguchi Methodsmentioning

confidence: 99%

“…Thus, at a pH above this point, the adsorbent surface has a negative charge and at a lower pH, the surface charges become positive. In order to determine pHPZC, 10 mL of NaCl solution (0.1 M) was poured into separate test tubes and the solutions were adjusted to different pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12). Hydrochloric acid (1 M) and sodium hydroxide (1 M) were used to adjust the pH.…”

Section: Determination Of Phpzcmentioning

confidence: 99%

“…In fact, about 20% of these dyes enter the aqueous medium due to the lack of proper stabilization of dye molecules on the fibers and the inefficiency of dyeing factories in wastewater treatment. Studies have shown that most of these dyes are toxic, allergenic, carcinogenic, and mutagenic to humans and various organisms [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Application of Chemometrics Into Removal of Dyes by NaX Nanozeolites: Simultaneous Model

Shojaei¹,

Shojaei²,

Band³

2021

Preprint

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In the present study, the simultaneous removal of malachite green (MG) and auramine-O (AO) dyes from the aqueous solution by NaX nanozeolites in a batch system is investigated. Taguchi method and response surface methodology (RSM) were used to optimize and model dye removal conditions. In order to do so, the effect of various factors (dyes concentration, sonication time, ionic strength, adsorbent dosage, temperature, and pH of the solution) on the amount of dye removal was evaluated by the Taguchi method. Then, the most important factors were chosen and modeled by the RSM method so as to reach the highest percentage of dye removal. The proposed quadratic models to remove both dyes were in good accordance with the actual experimental data. The maximum removal efficiencies of MG and AO dyes in optimal operating conditions were %99.07 and %99.61, respectively. Also, coefficients of determination (R2) for test data were 0.9983 and 0.9988 for MG and AO dyes, respectively. The reusability of NaX nanozeolites was evaluated during the adsorption process of MG and AO. The results showed that the adsorption efficiency decreases very little up to 5 cycles. Moreover, NaX nanozeolites were also applied as adsorbents to remove MG and AO from environmental water samples and more than %98.1 of both dyes were removed from the solution in optimal conditions.

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Section: Experimental Design 231 Taguchi Methodsmentioning

confidence: 99%

Section: Determination Of Phpzcmentioning

confidence: 99%

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Application of Chemometrics Into Removal of Dyes by NaX Nanozeolites: Simultaneous Model

Shojaei¹,

Shojaei²,

Band³

2021

Preprint

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show abstract

“…Affect plant growth (i) (ii) Iinterrupt photosynthesis Figure 1: e hazardous effects of synthetic dyes on the environment from different industries [34]. 4 Journal of Chemistry…”

Section: Conventional Technologiesmentioning

confidence: 99%

Phycoremediation of Synthetic Dyes: An Effective and Eco-Friendly Algal Technology for the Dye Abatement

Ayele

Getachew

Kamaraj

et al. 2021

Journal of Chemistry

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Rapid industrialization leads to serious environmental hazards due to the increase in the release of pollutants into the environment. Industries that use synthetic dyes for different applications are a predominant source for dye contaminants by releasing the dye in wastewater with pretreatment or without treatment directly into the water bodies, making serious water pollution in the environment. Therefore, it is imperative to safeguard the environment from such contaminants and their associated negative impacts. The conventional treatment method that is used to treat dye-contaminated wastewater is generally costly and has a possibility to produce secondary metabolites. Due to the above problems, the biological method is preferable to treat effluent or dye-contaminated wastewater. Phycoremediation is an algae-based eco-friendly dye abatement technique from contaminated environments. This review highlights the phycoremediation of dyes and its underlying mechanisms along with the information on synthetic dyes, classification, hazardous effects, and other major techniques of dye abatement. This review provides a comprehensive insight into several influencing factors such as pH, temperature, contact time, the dose of algae biomass, and agitation speed, as well as functional groups involved in the phycoremediation process.

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From Polymeric Waste to Disposable Electrochemical Environmental Sensors for Water Quality Monitoring

Ali,

Bashir,

Mujahid

et al. 2024

Lecture Notes in Civil Engineering

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Hybrid Adsorbents for Dye Removal from Wastewater

Cited by 11 publications

References 204 publications

Application of Chemometrics Into Removal of Dyes by NaX Nanozeolites: Simultaneous Model

Application of Chemometrics Into Removal of Dyes by NaX Nanozeolites: Simultaneous Model

Phycoremediation of Synthetic Dyes: An Effective and Eco-Friendly Algal Technology for the Dye Abatement

From Polymeric Waste to Disposable Electrochemical Environmental Sensors for Water Quality Monitoring

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Hybrid Adsorbents for Dye Removal from Wastewater

Cited by 11 publications

References 204 publications

Application of Chemometrics Into Removal of Dyes by NaX&nbsp;Nanozeolites: Simultaneous Model

Application of Chemometrics Into Removal of Dyes by NaX&nbsp;Nanozeolites: Simultaneous Model

Phycoremediation of Synthetic Dyes: An Effective and Eco-Friendly Algal Technology for the Dye Abatement

From Polymeric Waste to Disposable Electrochemical Environmental Sensors for Water Quality Monitoring

Contact Info

Product

Resources

About

Application of Chemometrics Into Removal of Dyes by NaX Nanozeolites: Simultaneous Model

Application of Chemometrics Into Removal of Dyes by NaX Nanozeolites: Simultaneous Model