2026-05-13T10:56:00.247Z http://ezaposleni.singidunum.ac.rs/rest/sciNaucniRezultati/oai

ezaposleni.singidunum.ac.rs/rest/sciNaucniRezultati/oai:2:6638 2019-09-19T10:06:50Z 2

Effects of combined Fe-Al electrodes and groundwater temperature on arsenic removal by electrocoagulation (EC) 2019 http://ezaposleni.singidunum.ac.rs/rest/sciNaucniRezultati/oai/record/2/6638 http://epe.pwr.wroc.pl/2019/2_2019.html E. Mohora S. Rončević J. Agbaba A. Tubić M. Adžemović B. Dalmacija 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 specific 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. article 10.5277/epe 190201 45 2 5 18 0324-8828 Environmental protection engineering