Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals
Electroflotation method (EFM) for treatment of synthetic solutions simulating wastewater from washing soil contaminated by drilling fluids from oil wells was investigated in this paper. Experiments were carried out to examine the effects of the operating conditions on the removal of lead, barium and...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-04-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785414001112 |
| _version_ | 1818279019535138816 |
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| author | Izabel de Oliveira da Mota José Adilson de Castro Rui de Góes Casqueira Angelo Gomes de Oliveira Junior |
| author_facet | Izabel de Oliveira da Mota José Adilson de Castro Rui de Góes Casqueira Angelo Gomes de Oliveira Junior |
| author_sort | Izabel de Oliveira da Mota |
| collection | DOAJ |
| description | Electroflotation method (EFM) for treatment of synthetic solutions simulating wastewater from washing soil contaminated by drilling fluids from oil wells was investigated in this paper. Experiments were carried out to examine the effects of the operating conditions on the removal of lead, barium and zinc from solutions containing 15 mg dm−3 for each metal representing a typical concentration of wastewater generated in the washing soil in this treatment. The experimental results showed that it is possible to remove these heavy metals by electrocoagulation/electroflotation (ECF) attaining 97% of removal using stainless steel mesh electrodes with a power consumption of 14 kWh m−3. The optimal conditions of treatment were sodium dodecyl sulfate (SDS) in a molar ratio 3:1, current density around 350 A m−2, ionic strength 3.2 × 10−3 M, pH = 10.0 and 20 min of ECF. This study newly indicated that the proposed method is adequate to simultaneously treat the common heavy metals found in the drilling fluids oil wells. |
| first_indexed | 2024-12-12T23:26:40Z |
| format | Article |
| id | doaj.art-7de3559e2dff4afcb739e31a1f1fba68 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-12T23:26:40Z |
| publishDate | 2015-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-7de3559e2dff4afcb739e31a1f1fba682022-12-22T00:08:01ZengElsevierJournal of Materials Research and Technology2238-78542015-04-014210911310.1016/j.jmrt.2014.11.004Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metalsIzabel de Oliveira da Mota0José Adilson de Castro1Rui de Góes Casqueira2Angelo Gomes de Oliveira Junior3Doutoral Program in Metallurgical Engineering, Universidade Federal Fluminense, Volta Redonda, RJ, BrazilDoutoral Program in Metallurgical Engineering, Universidade Federal Fluminense, Volta Redonda, RJ, BrazilInstitute of Technology, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, BrazilInstitute of Technology, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, BrazilElectroflotation method (EFM) for treatment of synthetic solutions simulating wastewater from washing soil contaminated by drilling fluids from oil wells was investigated in this paper. Experiments were carried out to examine the effects of the operating conditions on the removal of lead, barium and zinc from solutions containing 15 mg dm−3 for each metal representing a typical concentration of wastewater generated in the washing soil in this treatment. The experimental results showed that it is possible to remove these heavy metals by electrocoagulation/electroflotation (ECF) attaining 97% of removal using stainless steel mesh electrodes with a power consumption of 14 kWh m−3. The optimal conditions of treatment were sodium dodecyl sulfate (SDS) in a molar ratio 3:1, current density around 350 A m−2, ionic strength 3.2 × 10−3 M, pH = 10.0 and 20 min of ECF. This study newly indicated that the proposed method is adequate to simultaneously treat the common heavy metals found in the drilling fluids oil wells.http://www.sciencedirect.com/science/article/pii/S2238785414001112Heavy metal removalRemediationLeadBariumZinc |
| spellingShingle | Izabel de Oliveira da Mota José Adilson de Castro Rui de Góes Casqueira Angelo Gomes de Oliveira Junior Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals Journal of Materials Research and Technology Heavy metal removal Remediation Lead Barium Zinc |
| title | Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals |
| title_full | Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals |
| title_fullStr | Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals |
| title_full_unstemmed | Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals |
| title_short | Study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals |
| title_sort | study of electroflotation method for treatment of wastewater from washing soil contaminated by heavy metals |
| topic | Heavy metal removal Remediation Lead Barium Zinc |
| url | http://www.sciencedirect.com/science/article/pii/S2238785414001112 |
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