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2013 | 22 | 3 |

Tytuł artykułu

A comparative study of metals solubilization and electrocoagulation methods’ effectiveness in orthophosphate removal from synthetic wastewater

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
A comparative study was carried out to evaluate the effectiveness of orthophosphate removal from wastewaters using two methods: electrocoagulation and metals solubilization. Both methods were found to enable orthophosphate removal with more than 90% effectiveness at relatively low concentration of orthophosphates in crude wastewaters. The method of metals solubilization is based on spontaneous corrosive processes occurring in wastewater. In contrast to electrocoagulation, its advantage is a lack of the necessity of applying voltage to solubilized electrodes (no consumption of electric current at this stage), while its drawback is the longer duration of the treatment process. This manuscript presents a comparative analysis of both these methods applied for the treatment of synthetic wastewaters with pH=3, pH=5, and pH=8. Depending on the type of wastewaters subject to the treatment process, the metals solubilization method may appear more justified economically, especially with both methods resuling in similar parameters of wastewaters after treatment.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

22

Numer

3

Opis fizyczny

p.945-949,fig.,ref.

Twórcy

autor
  • Department of Environmental Engineering, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, Warszawska 117, 10-701 Olsztyn, Poland

Bibliografia

  • 1. PAK D., CHANG W. Simultaneous removal of nitrogen and phosphorus in a two-biofilter system. Water Sci. Technol. 41, 12, 101, 2000.
  • 2. BUZZINIA A.P., PATRIZZIA L.J., MOTHEOB A.J., PIRESA E.C. Preliminary evaluation of the electrochemical and chemical coagulation processes in the post-treatment of effluent from an upflow anaerobic sludge blanket (UASB) reactor. J. Environ. Manage. 85, 847, 2007.
  • 3. ŞENGIL A., ÖZACAR M. Treatment of dairy wastewaters by electrocoagulation using mild steel electrodes. J. Hazard. Mater. B137, 1197, 2006.
  • 4. BEKTAS N., AKBULUT H., INAN H., DIMOGLO A. Removal of phosphate from aqueous solutions by electrocoagulation. J. Hazard. Mater. 106B, 101, 2004.
  • 5. İRDEMEZ Ş., DEMIRCIOĞLU N., YILDIZ Y.Ş., BINGÜL Z. The effects of current density and phosphate concentration on phosphate removal from wastewater by electrocoagulation using aluminum and iron plate electrodes. Separ. Purif. Technol. 52, 218, 2006.
  • 6. İRDEMEZ Ş., DEMIRCIOĞLU N., YILDIZ Y.Ş. The effects of pH on phosphate removal from wastewater by electrocoagulation with iron plate electrodes. J. Hazard. Mater. B137, 1231, 2006.
  • 7. HUANG Y. H., HANG T. C. Effects of dissolved oxygen on formation of corrosion products and concomitant oxygen and nitrate reduction in zero-valent iron systems with or without aqueous Fe²⁺. Water Res. 39, 1751, 2005.
  • 8. WYSOCKA I. Applying Corrosion Processes for Phosphorus Compound Removal in Sewages. The Conference Proceedings, 2nd IWA Specialized Conference, Nutrient management in wastewater treatment processes, Kraków, Poland, 6-9 September 2009, pp. 939-946, 2009.
  • 9. WYSOCKA I., GIZA M.N. Comparison of the results of removing orthophosphates from sewage using the electrocoagulation method and the metal digestion method., Rocz. Ochr. Sr. 13, 1915, 2011 [In Polish].
  • 10. BAYRAMOGLU M., KOBYA M., CAN O. T., SOZBIR M. Operating cost analysis of electrocoagulation of textile dye wastewater. Separ. Purif. Technol. 37, 117, 2004.
  • 11. CHEN G. Electrochemical technologies in wastewater treatment. Separ. Purif. Technol. 38, 11, 2004.
  • 12. NOUBACTEP C., SCHÖNERB A. Metallic iron for environmental remediation: Learning from electrocoagulation. J. Hazard. Mater. 175, 1075, 2010.
  • 13. ÜN Ü. T., KOPARAL A. S., ÖĞÜTVERENB Ü. B. Hybrid processes for the treatment of cattle-slaughterhouse wastewater using aluminum and iron electrodes. J. Hazard. Mater. 164, 580, 2009.
  • 14. KUMAR M., PONSELVAN F. I. A., MALVIYA J. R., SRIVASTAVA V. CH., MALL I. D. Treatment of bio-digester effluent by electrocoagulation using iron electrodes. J. Hazard. Mater. 165, 345, 2009.
  • 15. DUAN J., GREGORY J. Coagulation by hydrolysing metal salts. Adv. Colloid Interfac. 100-102, 475, 2003.
  • 16. HUTNAN M., DRTIL M., KALINA A. Anaerobic stabilisation of sludge produced during municipal wastewater treatment by electrocoagulation. J. Hazard. Mater. B131, 163, 2008.
  • 17. WYSOCKA I., KRZEMIENIEWSKI M., JANCZUKOWICZ W., PESTA J. Influence of metal ions introduction to the solution by corrosion, on phosphorus removal from wastewater. Natural Sciences 9, 307, 2003.
  • 18. MOLLAH M.Y.A., SCHENNACH R., PARGA J.R., COCKE D.L. Elactrocoagulation (EC) – science and applications. J. Hazard. Mater., B84, 29, 2001.
  • 19. WYSOCKA I., KRZEMIENIEWSKI M. The influence of the metal dissolution process on the final effect of phosphorus compounds removal from treated sewage, Pol. J. Environ. Stud., 17, (3A), 596, 2008.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-944f9a8a-5eb0-48d8-bc16-12c55bfb20e5
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