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Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2023 / Cilt: 23 Sayı: 2

Cr(VI) Adsorption Performance of Commercial Anion Exchange Resin

Ticari Anyon Değiştirme Reçinesinin Cr(VI) Adsorpsiyon Performansı

Faysal SELİMOĞLU
Pages
306–315
Publication Date
2023-05-03
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

A rise in the temperature has resulted in a rise of the equilibrium constant (Kc) value for the Cr (VI) sorption by AER.

📌 3 Key Takeaways

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Objective & Hypothesis:Chromium (VI) batch system sorption from aqueous solutions by use of commercial Eichrom 1x4 anion exchange resin was studied at varying pH, temperature, and contact time, adsorbent dosage, desorption study, and starting Cr (VI) concentration.
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Key Findings & Data:The ideal pH range for Cr (VI) sorption via anion exchange resin (AER) was found as 2.0-6.0.
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Conclusion & Impact:A rise in the temperature has resulted in a rise of the equilibrium constant (Kc) value for the Cr (VI) sorption by AER.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Anyon değişim reçinesi · Toplu Sorpsiyon · Altı değerlikli krom

Abstract

Chromium (VI) batch system sorption from aqueous solutions by use of commercial Eichrom 1x4 anion exchange resin was studied at varying pH, temperature, and contact time, adsorbent dosage, desorption study, and starting Cr (VI) concentration. The ideal pH range for Cr (VI) sorption via anion exchange resin (AER) was found as 2.0-6.0. The kinetic of Cr (VI) sorption by resin came after the secondorder kinetic model. The greatest chromium sorption emerged at 10 min for AER. The sorption isotherms were investigated with Langmuir, Freundlich and Redlich-Peterson models. The optimum isothermal model for chromium sorption via AER was the Langmuir isotherm. Moreover, the sorption thermodynamic parameters like entropy change (ΔSo), free energy change (ΔGo), and enthalpy change (ΔHo) were also investigated. A rise in the temperature has resulted in a rise of the equilibrium constant (Kc) value for the Cr (VI) sorption by AER.

Özet

Ticari Eichrom 1x4 anyon değişim reçinesi kullanılarak sulu çözeltilerden krom (VI) kesikli sistem sorpsiyonu, değişen pH, sıcaklık ve temas süresi, adsorban dozajı, desorpsiyon çalışması ve başlangıç Cr (VI) konsantrasyonunda incelenmiştir. Anyon değiştirici reçine (AER) yoluyla Cr (VI) sorpsiyonu için ideal pH aralığı 2,0-6,0 olarak bulundu. Reçine tarafından Cr (VI) emiliminin kinetiği, ikinci dereceden kinetik modelden sonra geldi. AER için en büyük krom sorpsiyonu 10 dakikada ortaya çıkmıştır. Langmuir, Freundlich ve Redlich-Peterson modelleri ile sorpsiyon izotermleri incelenmiştir. AER yoluyla krom sorpsiyonu için optimum izotermal model Langmuir izotermidir. Ayrıca entropi değişimi (ΔSo), serbest enerji değişimi (ΔGo) ve entalpi değişimi (ΔHo) gibi sorpsiyon termodinamik parametreleri de incelenmiştir. Sıcaklıktaki bir artış, AER tarafından Cr(VI) sorpsiyonu için denge sabiti (Kc) değerinin yükselmesine neden olmuştur.

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Cite This Article

SELİMOĞLU, F. (2023). Cr(VI) Adsorption Performance of Commercial Anion Exchange Resin. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 23 Sayı: 2, 306–315. https://ajindex.com/articles/920830

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