Effects of combined Fe-Al electrodes and groundwater temperature on arsenic removal by electrocoagulation

• Autorzy: Mohora Emilijan , Rončević Srđjan , Agbaba Jasmina , Zrnić Kristiana , Tubić Aleksanda , Adžemović Mesud , Dalmacija Božo

Identyfikatory

DOI

10.5277/epe190201

• Języki publikacji: EN

Abstrakty

EN

The removal of arsenic from groundwater by continuous electrocoagulation (EC) using combined Fe-Al electrodes at its natural temperature (16.1±0.2 °C) was comprehensively evaluated. The results obtained indicated that all studied Fe-Al electrode combinations were able to reduce As concentration below 10 μg/dm³. Nevertheless, the Fe-Fe-Al-Fe electrode combination was the most suitable due to its highest arsenic removal capacity (0.354 μg As/C) for the lowest charge loading 68.4 C/dm³. The consumption of Fe was 0.0339 kg Fe/m³ and of Al electrodes 0.0145 kg Al/m³. The operating cost was estimated at 0.182 €/m³. The increase of the groundwater temperature by 8 °C from its natural temperature influenced increase of the Fe and Al electrodes dissolution rate by 30% and 17%, respectively and that of As removal efficiency by 16%. The residual Fe and Al concentrations in 500 dm³ of treated groundwater were below WHO guideline values for drinking water. Long-term field operation of the pilot-scale continuous EC reactor is required to validate effectiveness, reliability and robustness of the EC technique for arsenic removal from groundwater confirmed in laboratory conditions.

Słowa kluczowe

EN

arsenic; electrocoagulation; groundwater; EC reactor

PL

arsen; elektrokoagulacja; wody gruntowe; reaktor EC

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2019
• Tom: Vol. 45, nr 2
• Strony: 5--18
• Opis fizyczny: Bibliogr. 20 poz., tab., rys.

Twórcy

autor

Mohora Emilijan

• Singidunum University, Daniejelova 32, 11000 Belgrade, Republic of Serbia

autor

Rončević Srđjan

• University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Republic of Serbia

autor

Agbaba Jasmina

• University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Republic of Serbia

autor

Zrnić Kristiana

• University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Republic of Serbia

autor

Tubić Aleksanda

• University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Republic of Serbia

autor

Adžemović Mesud

• Singidunum University, Daniejelova 32, 11000 Belgrade, Republic of Serbia

autor

Dalmacija Božo

• University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Republic of Serbia

Bibliografia

• [1] AGBABA J., DALMACIJA B., Possible solutions for water supply in Bačka and northern and central Banat based on micro and macro-regional systems, University of Novi Sad Faculty of Sciences, Novi Sad, 2013.
• [2] WHO – World Health Organization, Guidelines for drinking-water quality [electronic resource]: incorporating 1st and 2nd addenda, Vol. 1, Recommendations, 4th Ed., 2011.
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).