Arsenic removal by adsorption on activated carbon in a rotating packed bed

Hashim, Mohd Ali; Kundu, A.; Mukherjee, Sourav; Ng, Yee Sern; Mukhopadhyay, Soumyadeep; Redzwan, Ghufran; Sengupta, Bhaskar

doi:10.1016/j.jwpe.2018.03.006

Cited by 45 publications

(17 citation statements)

References 24 publications

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“…According to [15], when iron oxide is introduced into the activated carbon structure, it shows significantly better results than unmodified carbons. The paper [16] shows that the use of cetylpyridinium chloride-modified activated carbon powder can successfully remove arsenate ions from water. In this case, the maximum amount of adsorbed arsenate is 0.087 mmol/g.…”

Section: The Paper Is Devoted To the Development Of A Methods For Obtaining And Using Iron-containing Sorption Materials For The Effectivmentioning

confidence: 99%

Development of iron-containing sorption materials for water purification from arsenic compounds

Litynska

Dontsova

Yanushevska

et al. 2021

EEJET

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The paper is devoted to the development of a method for obtaining and using iron-containing sorption materials for the effective removal of arsenic compounds of different oxidation states from an aqueous medium. It is known that arsenic compounds have a harmful effect on biota due to high toxicity. The paper theoretically and experimentally substantiates the choice of iron-containing materials as the main sorbent material for arsenic compounds removal from the aqueous medium. A series of iron-containing adsorbents, including powder, activated carbon-based granular and suspension sorbents, was synthesized by different methods (heterogeneous and homogeneous precipitation). Experimental studies have confirmed that the adsorption of arsenate ions on iron-containing sorption materials corresponds to the pseudo-second order of the reaction (R2=0.999), which is inherent in adsorption processes. It was determined that oxyhydroxide sorption materials obtained by the homogeneous precipitation demonstrate higher sorption activity (up to 70 mg/g for As(III) and over 70 mg/g for As(V)). It was found that activated carbon-based iron-containing sorption materials showed approximately 2 times lower efficiency than powder iron(III) oxide, iron(III) oxyhydroxide and amorphous iron(III) hydroxide. It was shown that the use of microfiltration membranes is promising for the removal of spent suspension iron-containing sorption materials. Experimental studies have confirmed that the use of the combination “fine-particle iron(III) oxyhydroxide/membrane” allows removing arsenic compounds from contaminated water to the sanitary requirements level (less than 10 μg As/l) and separating effectively the spent fine-particle sorbent from water

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Section: The Paper Is Devoted To the Development Of A Methods For Obtaining And Using Iron-containing Sorption Materials For The Effectivmentioning

confidence: 99%

Development of iron-containing sorption materials for water purification from arsenic compounds

Litynska

Dontsova

Yanushevska

et al. 2021

EEJET

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“…The authors observed multiple peaks ranging between 1580 cm −1 and 1650 cm −1 , indicating the presence of C-C stretching for aromatic rings and carboxyl groups, which are usually indicated by C=O and C-O stretching [40]. In addition, another peak corresponding to C-O stretching and indicating ester, alcohol and carboxylic acid groups was observed at a peak in the range of 1300-1000 cm −1 [39].…”

Section: Characterizationsmentioning

confidence: 96%

“…Nevertheless, there was a difference observed on the surface of both compounds as the Fe3O4 loaded activated carbon had a more irregular and coarser surface in comparison to the smoother surface of activated carbon treated only with sulfuric acid, and this is due to the deposition of Fe3O4 particles on the surface of the activated carbon. Hashim et al [39] investigated the adsorption of As(V) by activated carbon using a rotating packed bed. The authors implemented FTIR analysis, SEM and BET in order to conduct the characterization of their acquired activated carbon.…”

Section: Characterizationsmentioning

confidence: 99%

Activated Carbons for Arsenic Removal from Natural Waters and Wastewaters: A Review

Meez

Tolkou

Giannakoudakis

et al. 2021

Water

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The arsenic pollution of waters and wastewaters is concerning many countries across the world, and because of the effects of arsenic on human health, its removal from waters is of great importance. Adsorption using functionalized activated carbons as a technique for the removal of arsenic from water streams has gained great attention. In the present review, we summarize synthesis technologies, the characterization of materials and arsenic removal capacity, and we clarify the parameters which play a critical role in the removal of arsenic, such as the pH value of the water, the active group in the functionalization and temperature. The review article concludes that most of the experimental data fit both Langmuir and Freundlich isotherms. In this review, the recyclability and reuse of the materials are also reported, and the findings show that for both arsenite and arsenate, even after several adsorption cycles, the material can be further used as an efficient adsorbent for arsenic removal.

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“…Such examples of host materials are already available in literature which includes alginate 11,12 zeolite, 13,14 metal-organic framework, 15,16 activated carbon, 2,6,17 chitosan, [18][19][20] etc. In yet another example hydrated iron(III) oxide nanoparticles were dispersed within a macroporous polymeric cation exchanger to develop a hybrid material for arsenic removal.…”

Section: Introductionmentioning

confidence: 99%

Iron oxide coated hollow poly(methylmethacrylate) as an efficient adsorption media for removal of arsenic from water

Dutta

Пузари

2021

RSC Adv.

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Arsenic removal by adsorption on activated carbon in a rotating packed bed

Cited by 45 publications

References 24 publications

Development of iron-containing sorption materials for water purification from arsenic compounds

Development of iron-containing sorption materials for water purification from arsenic compounds

Activated Carbons for Arsenic Removal from Natural Waters and Wastewaters: A Review

Iron oxide coated hollow poly(methylmethacrylate) as an efficient adsorption media for removal of arsenic from water

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