Fly ash based geopolymer for heavy metal removal: A case study on copper removal

Al-Harahsheh, Mohammad; Al‐Zboon, Kamel K.; Al-Makhadmeh, Leema A.; Hararah, Muhannad A.; Al-Mahasneh, Mehaysen

doi:10.1016/j.jece.2015.06.005

Cited by 162 publications

(79 citation statements)

References 54 publications

(74 reference statements)

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“…This result suggests that the adsorption of Cu 2+ onto fly ash and activated fly ash are monolayer. Similar results were also obtained by others [19,20,23].…”

Section: Freundlich Isothermsupporting

confidence: 91%

“…The model is also based on the asumption that all the sorption sites are energetically idential and sorption occurs on a structurally homogeneous sorbent [19][20][21] where Ce is equilibrium concentration of Cu(II) in solution (mg/l); qe is the amount of Cu(II) adsorbed onto adsobents at equilibrium (mg/g); KL is the Langmuir equilibrium constant related to sorption energy; and qm is the maximum sorption capacity (mg/g).…”

Section: Langmuir Isothermmentioning

confidence: 99%

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Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly Ash

et al. 2018

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Abstract. Fly ash is a particulate material produced from coal combustion power plants with major components are silica, alumina, iron oxide, calcium oxide, magnesium oxide, and carbon which are ideal for metal adsorbents. The potential use of fly ash in the wastewater treatment process is obvious because it can be obtained cheaply in large quatities and it can be used as an adsorbent. However, fly ash still shows lower adsorption capacity unless it is activated. In this study, fly ash activated by NaOH 14 M and KOH 14 M solutions. The batch experiments were carried out to study the sorption of copper ions from aqueous on alkali activated fly ash. The influence of initial concentration and contact time were examined at constant pH and dose of adsorbent. The sorption capacity of copper ions increased with the initial concentration and contact time. The sorption capacities followed the order Na1>Ka1>FA. The adsorption isotherm model exhibited that the Langmuir model is very suitable with copper ions adsorption onto fly ash and alkali activated fly ash. Kinetic study shows that adsorption of copper ions onto FA, Na1, and Ka1 follows the pseudo second-order kinetics.

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“…This result suggests that the adsorption of Cu 2+ onto fly ash and activated fly ash are monolayer. Similar results were also obtained by others [19,20,23].…”

Section: Freundlich Isothermsupporting

confidence: 91%

Section: Langmuir Isothermmentioning

confidence: 99%

Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly Ash

et al. 2018

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“…Theoretically, any alkali can be used in geopolymerization reactions; however most of the studies have focused on the effect of sodium (Na+) and potassium (K+) ions. Both NaOH and KOH could be used in the activation process, but the extent of dissolution was higher when NaOH is used; this is due to the smaller size of Na+ which can be better stabilize the silicate monomers and dimmers present in the solution, enhancing the minerals dissolution rate [8]. Rios conclude that geopolymer treated with NaOH is better than treated geopolymer by KOH [21].…”

Section: Geopolymermentioning

confidence: 99%

“…One of these materials is coal fly ash. The disposal of the large amount of fly ash has become a serious environmental and economic problem [8]. One approach to deal with fly ash is converting to geopolymer which not only effective to heavy metal removal but also help to reduce the waste accumulation.…”

Section: Geopolymermentioning

confidence: 99%

“…First identification of geopolymeric materials as an alternative to conventional Portland cement and concrete composites in 1979 [7]. Geopolymer can be viewed as an economic zeolite which produced by reacting solid aluminosilicate with highly alkali hydroxide [8]. A unique structure of geopolymer which good in mechanical, chemical and thermal making them as alternatives for a variety of application [9].…”

Section: Introductionmentioning

confidence: 99%

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Review on Adsorption of Heavy Metal in Wastewater by Using Geopolymer

et al. 2017

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Abstract. Rapid development of advanced technology in Malaysia gave impact increasing in the accumulation of heavy metal every day in our daily life through wastewater. Long term exposure of human bodies to heavy metals susceptible to receives various infections and diseases. From an environmental and economic perspective, adsorption is acceptable process that can be applied in wastewater treatment. However, usage of activated carbon most acknowledged and costly adsorbents lead people to find an alternative to activated carbon. Several studies of physical properties of geopolymer make them gain attention to replace an activated carbon in the treatment of heavy metal. This paper review adsorption of heavy metal by using geopolymer.

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Preparation and Structure of Geopolymer‐Based Alkali‐Activated Circulating Fuildized Bed Ash Composite for Removing Ni²⁺from Wastewater

Król

Rożek

Mozgawa

2018

Ceramic Transactions Series

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Fly ash based geopolymer for heavy metal removal: A case study on copper removal

Cited by 162 publications

References 54 publications

Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly Ash

Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly Ash

Review on Adsorption of Heavy Metal in Wastewater by Using Geopolymer

Preparation and Structure of Geopolymer‐Based Alkali‐Activated Circulating Fuildized Bed Ash Composite for Removing Ni²⁺from Wastewater

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Fly ash based geopolymer for heavy metal removal: A case study on copper removal

Cited by 162 publications

References 54 publications

Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly Ash

Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly Ash

Review on Adsorption of Heavy Metal in Wastewater by Using Geopolymer

Preparation and Structure of Geopolymer‐Based Alkali‐Activated Circulating Fuildized Bed Ash Composite for Removing Ni2+from Wastewater

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Product

Resources

About

Preparation and Structure of Geopolymer‐Based Alkali‐Activated Circulating Fuildized Bed Ash Composite for Removing Ni²⁺from Wastewater