Abstract
This study dealt with investigation of arsenic removal from groundwater using electrocoagulation (EC) method in a batch mode by the Box-Behnken experimental design method. Effects of some cations like Ca, Fe, Mg, Mn and operating time on the removal were explored by an air injected EC reactor. The combined effects of these variables were analyzed by the quadratic model for predicting the highest removal efficiency of arsenic from groundwater. The arsenic removal efficiency was found to be dependent on increase with operating time and concentrations of Ca, Mg, Fe and lower concentration of Mn. When operating variables were considered as minimum operating cost and maximum removal efficiency, the optimum operating parameters were determined to be 132 mg/L of CCa, 55 mg/L of CMg, 4.5 mg /L of CFe, 4.5 mg/L of CMn and operating time of 3 min to meet the target concentration of <10 μg/L. Values of removal efficiency and operating cost at the optimum conditions were 95.1% and 0.041 $/m3.
Original language | English |
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Pages (from-to) | 1079-1093 |
Number of pages | 15 |
Journal | Environmental Engineering and Management Journal |
Volume | 17 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2018 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018, Gheorghe Asachi Technical University of Iasi, Romania. All rights reserved.
Funding
The authors would like to thank TUBITAK-ÇAYDAG for financial support of this work under contract 111Y103.
Funders | Funder number |
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Türkiye Bilimsel ve Teknolojik Araştirma Kurumu | 111Y103 |
Keywords
- Arsenic removal
- Cations effects
- Electrocoagulation
- Groundwater
- Reactor design