SavedAdd your journal

Journals / Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi / 2018 / Cilt: 24 - Sayı: 6

Fluoride removal from aqueous solution by electrocoagulation using aluminium electrodes: Isotherm and kinetic studies

Alüminyum elektrotlar kullanılarak elektrokoagülasyon ile sulu çözeltilerden florür giderimi: İzoterm ve kinetik çalışmaları

Senem YAZICI GÜVENÇ
Gamze VARANK
Ahmet DEMİR
Pages
1130–1134
Publication Date
2018-12-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

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

Experimental data well fitted with Langmuir and Freundlich isotherm equations and results of the kinetic study indicated that pseudo-second order kinetic model give higher correlation coefficients for different conditions.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The main objective of the present study was the removal of fluoride from aqueous solution by electrocoagulation technique using aluminum electrodes.
📊
Key Findings & Data:Experimental study showed that maximum removal efficiency (87.4%) was achieved at the conditions of current density 11 mA/cm2, reaction time 30 min and initial fluoride concentration 10 mg/L.
💡
Conclusion & Impact:Experimental data well fitted with Langmuir and Freundlich isotherm equations and results of the kinetic study indicated that pseudo-second order kinetic model give higher correlation coefficients for different conditions.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Elektrokoagülasyon · Florür giderimi · İzoterm ve kinetik modeller

Abstract

The main objective of the present study was the removal of fluoride from aqueous solution by electrocoagulation technique using aluminum electrodes. The effect of various parameters such as current density, time and initial fluoride concentration were studied to optimize the conditions. Experimental study showed that maximum removal efficiency (87.4%) was achieved at the conditions of current density 11 mA/cm2, reaction time 30 min and initial fluoride concentration 10 mg/L. Isotherm models (Langmuir and Freundlich) and kinetic models (pseudo-first order and pseudo-second order) were used to analyze the electrocoagulation mechanism and characterize the process parameters. Experimental data well fitted with Langmuir and Freundlich isotherm equations and results of the kinetic study indicated that pseudo-second order kinetic model give higher correlation coefficients for different conditions.

Özet

Bu çalışmanın ana amacı, alüminyum elektrotlar kullanılarak elektrokoagülasyon tekniği ile sulu çözeltilerden florürün giderilmesidir. Çalışma koşullarını optimize etmek için akım yoğunluğu, zaman ve giriş florür konsantrasyonu gibi çeşitli parametrelerin etkisi üzerine çalışmalar yürütülmüştür. Deneysel çalışmalar, 11 mA/cm2 akım yoğunluğu, 30 dk reaksiyon süresi ve 10 mg/L giriş florür konsantrasyonu koşullarında %87,4 maksimum giderim veriminin elde edildiğini göstermiştir. Elektrokoagülasyon mekanizması ve prosesin karakteristik parametreleri isoterm (Langmuir and Freundlich) ve kinetik modeller (1. ve 2. Derece) ile analiz edilmiştir. Deneysel veriler Langmuir ve Freundlich izoterm denklemleri ile uyum sağlamıştır. Kinetik çalışma sonuçları, farklı koşullar altında 2. derece kinetik modelin daha yüksek korelasyon katsayısı sağladığını göstermiştir.

🔖

Cite This Article

GÜVENÇ, S. Y., VARANK, G., DEMİR, A. (2018). Fluoride removal from aqueous solution by electrocoagulation using aluminium electrodes: Isotherm and kinetic studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 24 - Sayı: 6, 1130–1134. https://ajindex.com/articles/42288

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Miretzky P, Cirelli AF. “Fluoride removal from water by chitosan derivatives and composites: A review”. Journal of Fluorine Chemistry, 132(4), 231-240, 2011.
  2. Yu X, Tong S, Ge M, Zuo J. “Removal of fluoride from drinking water by cellulose @ hydroxyapatite nanocomposites”. Carbohydrate Polymers, 92(1), 269-275, 2013.
  3. Meenakshi S, Viswanathan N. “Identification of selective ion-exchange resin for fluoride sorption”. Journal of Colloid and Interface Science, 308(2), 438-450, 2007.
  4. Liu JX, Hu Z, Zhu C, Wen G, Meng X. “Removal of fluoride and total dissolved solids from coalbed methane produced water with a movable ultra-low pressure reverse osmosis system” Desalination and Water Treatment, 51(22-24), 4359-4367, 2013.
  5. Sujana MG, Mishra A, Acharya BC. “Hydrous ferric oxide doped alginate beads for fluoride removal: Adsorption kinetics and equilibrium studies”. Applied Surface Science, 270, 767-776, 2013.
  6. Gong WX, Qu JH, Liu RP, Lan HC. “Effect of aluminum fluoride complexation on fluoride removal by coagulation”. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 395, 88-93, 2012.
  7. Bazrafshan E, Ownagh KA, Mahvi AH. “Application of electrocoagulation process using iron and aluminum electrodes for fluoride removal from aqueous environment” E-Journal of Chemistry, 9(4), 2297-2308, 2012.
  8. Amor Z, Bariou B, Mameri N, Taky M, Nicolas S, Elmidaoui A. “Fluoride removal from brackish water by electrodialysis”. Desalination, 133(3), 215-223, 2001.
  9. Sandoval MA, Fuentes R, Nava JL, Rodríguez I. “Fluoride removal from drinking water by electrocoagulation in a continuous filter press reactor coupled to a flocculator and clarifier”. Separation and Purification Technology, 134, 163-170, 2014.
  10. Maleki A, Mahvi AH, Daraei H, Rezaei R, Meihami N, Mohammadi K, Zandia SS. “Influence of selected anions on fluoride removal in electrocoagulation/electroflotation”. Research Report Fluoride, 48(1), 23-47, 2015.
  11. Rajeshwar K, Ibanez J, Swain GW. “Electrochemistry and the environment”. Journal of Applied Electrochemistry, 24 (11), 1077-1091, 1994.
  12. Valero D, Ortiz JM, Garcia V, Exposito E, Montiel V, Aldaz A. “Electrocoagulation of wastewater from almond industry”. Chemosphere, 84(9), 1290-1295, 2011.
  13. Kitagaki T, Hoshino T, Sambommatsu Y, Yano K, Takeuchi M, Igarashi T, Suzuki T. “Fission product separationfrom seawater by electrocoagulation method”. Journal of Radioanalytical and Nuclear Chemistry, 296, 975-979, 2013.
  14. Kamaraj R, Vasudevan SS. “Evaluation of electrocoagulation p