Adsorptive removal of As(V) and As(III) from water by a Zr(IV)-loaded orange waste gel

Biswas, Biplob Kumar; Inoue, Jun‐ichi; Inoue, Katsutoshi; Ghimire, Kedar Nath; Harada, Hiroyuki; Ohto, Keisuke; Kawakita, Hidetaka

doi:10.1016/j.jhazmat.2007.11.030

Cited by 158 publications

(79 citation statements)

References 40 publications

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“…For example, the removal of As(V) and As(III) from water by a Zr(IV)-loaded orange waste gel had an initial concentration of 20 mg/L and surface area of 7.25 m 2 /g. The maximum adsorption capacity of the Zr(IV)-loaded sol-gel was 88 mg/g and 130 mg/g for As(V) and As(III), respectively [112]. Similar results were reported by [83] on chitosan-coated biosorbent and by [14] on zirconium polyacrylamide hybrid material (ZrPACM-43).…”

Section: Adsorption Isotherm Studies On As(iii) and As(v)supporting

confidence: 82%

A Comparative Study on Removal of Hazardous Anions from Water by Adsorption: A Review

John

David

Mmereki

2018

International Journal of Chemical Engineering

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This paper presents a comparative review of arsenite (As(III)), arsenate (As(V)), and fluoride (F − ) for a better understanding of the conditions and factors during their adsorption with focus on (i) the isotherm adsorption models, (ii) effects of pH, (iii) effects of ionic strength, and (iv) effects of coexisting substances such as anions, cations, and natural organics matter. It provides an indepth analysis of various methods of arsenite (As(III)), arsenate (As(V)), and fluoride (F − ) removal by adsorption and the anions' characteristics during the adsorption process. The surface area of the adsorbents does not contribute to the adsorption capacity of these anions but rather a combination of other physical and chemical properties. The adsorption capacity for the anions depends on the combination of all the factors: pH, ionic strength, coexisting substances, pore volume and particles size, surface modification, pretreatment of the adsorbents, and so forth. Extreme higher adsorption capacity can be obtained by the modification of the adsorbents. In general, pH has a greater influence on adsorption capacity at large, since it affects the ionic strength, coexisting anions such as bicarbonate, sulfate, and silica, the surface charges of the adsorbents, and the ionic species which can be present in the solution.

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Section: Adsorption Isotherm Studies On As(iii) and As(v)supporting

confidence: 82%

A Comparative Study on Removal of Hazardous Anions from Water by Adsorption: A Review

John

David

Mmereki

2018

International Journal of Chemical Engineering

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“…ZnCl 2 impregnation could signicantly increase the generation of mesopores and micropores, the specic surface area, and the yields of biochar. [23][24][25][26] Recently, transitional Zr(IV)-binding chitosan complexes, orange waste gel and AC have been applied for the removal of phosphate, 27,28 As(V) and As(III), 29,30 Cr(VI) and vanadium(V), 13,31,32 because hydrous Zr(IV) can form tetrahedral geometries with abundant water molecules and hydroxyl ions, which could give rise to adsorption sites and high adsorption affinity toward oxyanions. Moreover, Zr(IV) in its hydrated form can resist the adsorption of alkalis, acids, reductants and oxidants, which can improve the selectivity of the absorbents.…”

Section: -19mentioning

confidence: 99%

Development, modification, and application of low-cost and available biochar derived from corn straw for the removal of vanadium(v) from aqueous solution and real contaminated groundwater

et al. 2018

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In this work, a low-cost and available material for use as a permeable reactive barrier (PRB) to prevent vanadium in groundwater from leaking into river water was developed. Three modified biochars were prepared from available corn straw pretreated with CsCl, Zn(II), and Zr(IV) to enhance ion exchange capacity (IEC) and specific surface area, and were designated as Cs-BC, Zn-BC, and Zr-BC, respectively. These materials were characterized via IEC, N 2 adsorption-desorption, Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) analyses. The Langmuir isotherm model could be applied for the best fit for the adsorption data of Cs-BC and Zr-BC, indicating that vanadium(V) sorption occurred in a monolayer. The vanadium(V) adsorption capacities of Cs-BC, Zn-BC, and Zr-BC were 41.07, 28.46, and 23.84 mg g À1 , respectively, which were 3.22-5.55 times higher than that of commercial activated carbon (AC) (7.40 mg g À1 ), probably because of their higher IECs and specific surface areas after modification. In addition, no heavy metal leaching was found from the modified biochars during the adsorption processes when pH > 2. According to the FTIR and XRD patterns, the adsorption mechanism of Cs-BC and Zr-BC was ion exchange, whereas for Zn-BC, it was mainly surface precipitation and electrostatic attraction. The adsorption of vanadium(V) onto the modified biochars was independent of pH in the range of 4.0 to 8.0. Furthermore, the removal efficiency of the vanadium(V) in real contaminated groundwater from the catchment of the Chaobei River by Zn-BC reached 100% at a dose of 4 g L À1. Hence, modified biochars are promising PRB filling materials for removing vanadium(V) from contaminated groundwater.

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“…resin D401 (Zr-D401) Resin was modified according to the method proposed by Biswas (Biswas et al, 2008). In order to load zirconium, 40 g dried macroporous chelating resin D401 was equilibrated with 1L zirconium reserving liquid at 30℃ for 24 h. The resin was then washed with deionized water until neutral pH, followed by drying at 40℃ until constant weight.…”

Section: Preparation Of the Zr (Iv)-loaded Chelatingmentioning

confidence: 99%

“…Similar results have been reported: optimum pH range was found between 4−6 by An et al (2011) and between 4.5−6.5 by Pakzadeh and Batista (2011) by using the method of ion-exchange. Biswas et al (2008) reported that arsenate was strongly adsorbed in the pH range from 2 to 6, while arsenite was strongly adsorbed between pH 9 and 10 by Zr (IV)-loaded orange waste gel through the removal of As (V) and As (III).…”

Section: Effect Of Ph On the Removal Of Arsenic By D296mentioning

confidence: 99%

“…But these studies are mainly focused on Cd and Lead ions purification, and there have not been many useful techniques that deal with arsenic removal (Yang et al, 2012). Nevertheless some methods used in the arsenic removal from industrial wastewater can provide guidance for our removal experiment (Mohan and Pittman, 2007;Biswas et al, 2008;Pan et al, 2007;Ratna et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Arsenic removal from Pinctada martensii enzymatic hydrolysate by using Zr(IV)-loaded chelating resin

Yang

Dai

Sun

et al. 2013

J. Ocean Univ. China

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The present study investigated the removal of inorganic arsenic from Pinctada martensii enzymatic hydrolysate through unmodified resin (D296) and Zr(Ⅳ)-loaded chelating resin (Zr-D401). By loading Zr to macroporous chelating resin D401, the as exchange adsorption active sites are generated. This transforms D401 from a material that does not have the arsenic adsorption capacity into a material that has excellent arsenic exchange adsorption capacity. The static adsorption experiments were conducted to investigate the optimal removal condition for D296 and Zr-D401. The experimental results show that: the optimum condition for D296 is that T= 25℃, pH = 5, resin additive amount = 1 g (50 mL) -1 , and contact time = 10 h, the corresponding arsenic removal rate being 65.7%, and protein loss being 2.33%; the optimum condition for Zr-D401 is that T=25℃, pH = 8, resin additive amount = 1 g (50 mL) -1 , and contact time=10 h, the corresponding arsenic removal rate being 70.3%, and protein loss being 4.65%. These results show that both of the two resins are effective in arsenic removal for preserving useful substance. Our research provides scientific evidence and advances in the processing technology for heavy metal removal in shellfish.

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Adsorptive removal of As(V) and As(III) from water by a Zr(IV)-loaded orange waste gel

Cited by 158 publications

References 40 publications

A Comparative Study on Removal of Hazardous Anions from Water by Adsorption: A Review

A Comparative Study on Removal of Hazardous Anions from Water by Adsorption: A Review

Development, modification, and application of low-cost and available biochar derived from corn straw for the removal of vanadium(v) from aqueous solution and real contaminated groundwater

Arsenic removal from Pinctada martensii enzymatic hydrolysate by using Zr(IV)-loaded chelating resin

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