Removal of Cobalt Ions from Aqueous Solution by Adsorption onto Cross-Linked Calcium Alginate Beads

Dewangan, Tulika; Tiwari, Alka; Bajpai, A. K.

doi:10.1080/01932690802477272

Cited by 18 publications

(5 citation statements)

References 20 publications

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“…South African coal fly ash 0.40 [51] Ficus benghalensis leaf powder 5.65 [52] Banana peel 2.55 [17] Coal based Granular Activated Carbon 0.34 [53] Orange peel 1.82 [17] Ficus religiosa leaf powder 3.60 [54] Cross-Linked Calcium Alginate Beads 1.38 [16] Kaolinite 0.92 [19] Saudi activated bentonite 7.3 [2] Montmorillonite 6.92 [18] Clearing nut seed powder 4.25 This study…”

Section: Adsorbent Adsorption Capacity (Mg/g) Referencesmentioning

confidence: 99%

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Adsorptive removal of Co(II) in aqueous solutions using clearing nut seed powder

Ranaweera

Godakumbura

Perera

2020

Heliyon

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The present study assessed the potential use of clearing nut seed powder (Strychnos potatorum) as an adsorbent for the removal of Co(II) ions from aqueous solutions. Based on FTIR analysis, the adsorbent possesses hydroxyl, C-N, and C-O functional groups and SEM analysis indicated the presence of uneven porous surface structure, which is important for adsorption. Batch adsorption studies were performed to investigate the effect of contact time, initial pH, initial Co(II) concentration, adsorbent dosage, and temperature on adsorption. The Langmuir isotherm model provided the best explanation to experimental data with the highest correlation coefficient and the maximum monolayer adsorption capacity obtained was 4.245 mg/g. The pseudo-second-order kinetic model fitted well with the adsorption kinetic data. Sorption thermodynamic data showed that the adsorption process is spontaneous and exothermic in nature. The clearing nut seed powder obtained after surface modification by acid treatment showed a higher adsorption capacity.

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Section: Adsorbent Adsorption Capacity (Mg/g) Referencesmentioning

confidence: 99%

“…Studies have been carried out to remove Co(II) ions from aqueous solutions utilizing adsorbents including Saudi activated bentonite [2], Cross-Linked Calcium Alginate Beads [16], banana peels [17], montmorillonite [18] and Kaolinite [19].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of Co(II) in aqueous solutions using clearing nut seed powder

Ranaweera

Godakumbura

Perera

2020

Heliyon

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“…As reported in the literature, alginate beads can be used as an efficient adsorbent in wastewater treatment [30] mainly for the removal of heavy metal [32][33][34][35][36] and dyes [37,38]. In an attempt to discriminate between the contribution of alginate beads matrix to the adsorption phenomena or to catalytic oxidation processes, adsorption assays were initially carried out, at pH 3.0, using 20 mg L −1 of IAA, without H 2 O 2 addition.…”

Section: Adsorptive Removal Of Iaamentioning

confidence: 99%

Fenton oxidation of indole-3-acetic acid by iron alginate beads

Hammouda

Adhoum

Monser

2016

Desalination and Water Treatment

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A heterogeneous Fenton reaction using Iron alginate beads (Fe-AB) was evaluated for the removal of an N-heterocyclic compound indole-3-acetic acid (IAA), which ranked as uremic toxin and an herbicide derivative. The efficiency of the process was studied as a function of the experimental conditions: initial pH; H 2 O 2 dose, temperature, initial concentrations of IAA, and Iron alginate beads loading. Under the best experimental conditions: pH 3.0; H 2 O 2 dose = 9.8 mM; and [alginate beads] = 1.0 g L −1 , it was possible to remove 100% of 0.11 mM IAA in 120 min in a batch reaction at 25˚C. The experimental results indicate also that the use of this catalyst allows a significant removal of total organic carbon without significant leaching of Fe ions. A kinetic analysis showed that the removal of IAA followed a firstorder kinetics model. In addition, the Fe-AB catalyst can be reused for successive runs, without significant loss of activity.

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“…Bundan dolayı daha yüksek konsantrasyonlarda metal iyonlarının adsorpsiyon kapasitesinin artması muhtemeldir [11]. Benzer sonuçlar literatürde mevcuttur [5]- [9]. Parametrelerin optimum değerlerinin belirlenmesi amacıyla model tarafından önerilen gerçek değerler için model eşitliğinden yola çıkılarak matematiksel olarak önceden literatürde kullanılan matris yöntemiyle optimum koşullar bulunmuştur [15], [29].…”

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Application of response surface methodology for optimization of Co(II) adsorption conditions with natural pumice mineral

Şahan¹,

Yılmaz²

2017

Pamukkale J Eng Sci

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Pomza mineralleri ülkemizde bol miktarda bulunan ve farklı kullanım alanına sahip gözenekli bir malzemedir. Doğal pomza, boşluklu, süngerimsi, volkanik faaliyetler sonucunda oluşmuş, fiziksel ve kimyasal etkilere karşı dayanıklılığı yüksek, gözenekli camsı bir kayaçtır. Oluşum evresinde, yapısında bulunan gazların (flor, klor, su buharı gibi), hızlı bir şekilde yapıdan ayrılması ve aniden soğuması sebebiyle, sayısız gözeneği yapısında barındırır [11]. Doğal pomza, zararsız atık üretmemesi doğada ucuz ve bol olarak bulunması ve kolay elde edilebilir olması bakımından ağır metal adsorpsiyonu için çok

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Removal of Cobalt Ions from Aqueous Solution by Adsorption onto Cross-Linked Calcium Alginate Beads

Cited by 18 publications

References 20 publications

Adsorptive removal of Co(II) in aqueous solutions using clearing nut seed powder

Adsorptive removal of Co(II) in aqueous solutions using clearing nut seed powder

Fenton oxidation of indole-3-acetic acid by iron alginate beads

Application of response surface methodology for optimization of Co(II) adsorption conditions with natural pumice mineral

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