Removal of methylene blue from aqueous solutions using alum Sludge: Sorption optimization by response surface methodology

Yusuff, Soleha Mohamat; Ong, Keat Khim; Yunus, Wan Md Zin Wan; Fitrianto, A.; Ahmad, Muhammad Bilal

doi:10.4314/jfas.v9i3s.41

Cited by 8 publications

(1 citation statement)

References 8 publications

(12 reference statements)

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“…More recently, dye removal efficiencies of 53-95% for alum-based WTRs and 97% for ferric WTRs have been reported (Moghaddam et al 2010;Gadekar and Ahammed 2016;Butani and Mane 2017). Following these studies, Yusuff et al (2017) went a step further and optimised the removal of methylene blue textile dye, achieving a 100% removal rate by exposing the treatment process to a temperature of 450°C and a pH of 6. This level of treatment success demonstrates the great potential for environmental benefits that could be gained through this type of WTR application, particularly in developing countries where vast quantities of textiles are produced and wastewater treatment options are often limited (or even absent) because of technical access and cost issues.…”

Section: Sorption Of Pollutants or Excess Nutrients From Solutionmentioning

confidence: 99%

Potential Alternative Reuse Pathways for Water Treatment Residuals: Remaining Barriers and Questions—a Review

Turner

Wheeler²,

Stone³

et al. 2019

Water Air Soil Pollut

109

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Water treatment residuals (WTRs) are byproducts of the coagulation and flocculation phase of the drinking water treatment process that is employed in the vast majority of water treatment plants globally. Production of WTRs are liable to increase as clean drinking water becomes a standard resource. One of the largest disposal routes of these WTRs was via landfill, and the related disposal costs are a key driver behind the operational cost of the water treatment process. WTRs have many physical and chemical properties that lend them to potential positive reuse routes. Therefore, a large quantity of literature has been published on alternative reuse strategies. Existing or suggested alternative disposal routes for WTRs can be considered to fall within several categories: use as a pollutant and excess nutrient absorbent in soils and waters, bulk land application to agricultural soils, use in construction materials, and reuse through elemental recovery or as a wastewater coagulant. The main concerns and limitations restricting current and future beneficial uses of WTRs are discussed within. This includes those limitations linked to issues that have received much research attention such as perceived risks of undesirable phosphorous immobilisation and aluminium toxicity in soils, as well as areas that have received little coverage such as implications for terrestrial ecosystems following land application of WTRs.

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Section: Sorption Of Pollutants or Excess Nutrients From Solutionmentioning

confidence: 99%

Potential Alternative Reuse Pathways for Water Treatment Residuals: Remaining Barriers and Questions—a Review

Turner

Wheeler²,

Stone³

et al. 2019

Water Air Soil Pollut

109

View full text Add to dashboard Cite

show abstract

Alum sludge as an adsorbent for inorganic and organic pollutants removal from aqueous solutions: a review

Pająk

2023

Int. J. Environ. Sci. Technol.

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One of the first stages of water treatment is the coagulation process, a side effect of which is the formation of huge amounts of sludge, which is most often deposited in landfills. The residues formed as a by-product in water treatment plants are characterized by high porosity, irregularity and loose structure with limited strength, so they can exhibit adsorption properties. This article reviews the ability of Al-based sludge to adsorb inorganic pollutants and textile dyes from aqueous solutions. Due to its physicochemical properties, alum sludge has a high adsorption capacity against inorganic as well as organic pollutants. The collected literature review focuses on the presentation of the most common directions of use of these materials as effective adsorbents against the pollutants present, the presentation of the conditions for the adsorption process, the mechanisms of binding of pollutants. In addition, it indicates which directions of their use as effective and economical adsorbents have not been sufficiently explored, suggesting that more research in this area be conducted. Graphical abstract

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Cost-effective ecofriendly nanoparticles for rapid and efficient indigo carmine dye removal from wastewater: Adsorption equilibrium, kinetics and mechanism

El-Kammah¹,

Elkhatib²,

Gouveia³

et al. 2022

Environmental Technology & Innovation

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Removal of methylene blue from aqueous solutions using alum Sludge: Sorption optimization by response surface methodology

Cited by 8 publications

References 8 publications

Potential Alternative Reuse Pathways for Water Treatment Residuals: Remaining Barriers and Questions—a Review

Potential Alternative Reuse Pathways for Water Treatment Residuals: Remaining Barriers and Questions—a Review

Alum sludge as an adsorbent for inorganic and organic pollutants removal from aqueous solutions: a review

Cost-effective ecofriendly nanoparticles for rapid and efficient indigo carmine dye removal from wastewater: Adsorption equilibrium, kinetics and mechanism

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