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Methods of Nickel Removal from Valerian Irrigating Waste Water | ||
| Journal of Medicinal plants and By-products | ||
| مقاله 12، دوره 3، شماره 1، تیر 2014، صفحه 79-83 اصل مقاله (148.24 K) | ||
| شناسه دیجیتال (DOI): 10.22092/jmpb.2014.108608 | ||
| نویسنده | ||
| Toktam Shahriari* | ||
| Faculty of Environment, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| Industrial development and extensive use of heavy metals have led to the problem of environmental pollution. Nickel compounds are toxic to plants and have detrimental effects on their growth. Valerian is a plant used in herbal medicine. Considering the hazards of nickel, various methods have been developed to remove this contaminant from herbs irrigation wastewater, including the common chemical precipitation and the novel electrocoagulation methods. An advantage of electrocoagulation is its high efficiency in removal of contaminants. In this study, nickel at a concentration of 500 mg/L in a synthetic wastewater was removed by chemical precipitation with Sodium hydroxide, lime, and sodium sulfide, as well as by electrocoagulation; the removal efficacy was 80.66%, 78.92%, 86.02 and 99.96, respectively. The pilot used for electrocoagulation was made of plexiglass with 10 metallic electrodes of 11×7×0.2 cm. Comparison of the results showed high efficiency of electrocoagulation. In these experiments, pH was considered about 6. | ||
| کلیدواژهها | ||
| Chemical precipitation؛ Electrocoagulation؛ heavy metals؛ Nickel؛ Valerian | ||
| مراجع | ||
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1. Amini F, Noori M, Foroghi M. The Effects of Heavy Metals on Leaf Anatomy, Some Flavonoids and Nitrotoxins of Coronilla varia L. in Hydroponic Culture, Cell & Tissue (JCT) Research Article. 2011;1:9-20.
2. Amini F, Mirghaffari N, Eshghi Malayeri B. Nickel Concentration in Soil and Some natural Plant Species around Ahangaran Lead and Zinc Mine in Hamedan, Environmental Sciences and Technology. 2011;2:11-20.
3- www.civilica.com/Paper-NABATAT11-NABATAT11.
10. Heydarzadeh R. Technical and economical comparison of Cr(VI) removal from Birjand drinking water, Ms thesis, Faculty of environment, University of Tehran. 2005.
11. Chaudhary AJ, Goswami NC, Grimes SM. Electrolytic removal of hexavalent chromium from aqueous, Journal of chemical technology and biotechnology. 2003;78:877-883.
12. Asadian Feli B. Quantitative and qualitative investigation of chromium removal in Charmshahr industrial wastewater treatment plant and optimization, MS thesis, Faculty of environment, University of Tehran. 2004.
13. Merzouk B, Gourich B, Madani K, Vial C, Sekki A. Removal of a disperse red dye from synthetic wastewater by chemical coagulation and continuous electrocoagulation. A comparative study, Desalination, 2011;272:246-253.
14. Akbal F, Camc S. Copper, Chromium and nickel removal from metal plating wastewater by electrocoagulation, Desalination. 2011;269:214-222.
15. Kobya M, Gebologlu U, Ulu F, Oncel S, Demirbas E. Removal of arsenic from drinking water by the electrocoagulation using Fe and Al electrodes, Electrochimica Acta. 2011;56:5060-5070.
16. Canizares P, Jimenez C, Martínez F, Rodrigo M, Saez C. The pH as a key parameter in the choice between coagulation and electrocoagulation for the treatment of wastewaters, J Haz Mat. 2009;163:158-164.
17. Sasson MB, Calmano W, Adin A. Iron-oxidation processes in an electroflocculation (electrocoagulation) cell. J Haz Mat. 2009;171:704-709.
18. Zodi S, Potier O, Lapicque F, Leclerc JP. Treatment of the industrial wastewaters by electrocoagulation: Optimization of coupled electrochemical and sedimentation processes. Desalination. 2010;261:186-90.
19. Bazrafshan A. Usability evaluation of electrocoagulation process in removing diazinon pesticide and cadmium and chromium heavy metals from aqueous environments, PhD thesis, School of Public Health, University of Tehran. 2008.
20. Katal R, Pahlavanzadeh H. Influence of different combinations of aluminum and iron electrode on electrocoagulation efficiency: Application to the treatment of paper mill wastewater. Desalination. 2011;265:199-205.
21. Nemerow N, Dasgupa A. Industrial and hazardous waste treatment, International Thomson Publishing. 1991.
22. Zongo I, Hama Maiga A, Wethe J, Valentin G, Leclerc JP, Paternotte G, Lapicqu, F. Electrocoagulation for the treatment of textile wastewaters with Al or Fe electrodes: Compared variations of COD levels, turbidity and absorbance, Journal of Hazardous Materials. 2009;169:70-76.
23. Linares-Hernandez I, Barrera-Díaza C, Roa-Morales G, Bilyeu B, Urena-Núnez F. Influence of the anodic material on electrocoagulation performance. Chem Engineering J. 2009;148:97-105.
24. Akbal F, Camc S. Copper, chromium and nickel removal from metal plating wastewater by electrocoagulation, Desalination. 2011;269:214-222.
25. Kobya M, Gebologlu U, Ulu F, Oncel S, Demirbas E. Removal of arsenic from drinking water by the electrocoagulation using Fe and Al electrodes. Electrochimica Acta. 2011;56:5060-5070.
26. Jing-wei F, Ya-bing S, Zheng Z, Ji-biao Z, Shu L, Yuan-chun, T. Treatment of tannery wastewater by electrocoagulation, J Environ Sci. 2007;19:1409-1415.
27. Merzouk B, Madani K, Sekki A. Using electrocoagulation - electroflotation technology to treat synthetic solution and textile wastewater, two case studies, Desalination. 2010;250:573-577.
28. Franson MA. Standard Methods for the examination of water and wastewater, 21st edn. American Public Health Association, USA. 2005.
29. Gao P, Chen X, Shen F, Chen G. Removal of chromium(VІ) from wastewater by combined electrocoagulation - electroflotation without a filter. Separation and Purification Technology. 2005;43:117-123.30. Farhadi S. Pharmaceutical wastewater treatment with using electrocoagulation, A case study of pharmaceutical plant Osveh, MS thesis, Faculty of environment, University of Tehran. 2010.
31. Golder AK, Samanta AN, Ray S. Removal of Cr3+ by electrocoagulation with multiple electrodes: Bipolar and monopolar configurations, J Hazardous Materials. 2007;141:653-661.
32. Tadesse I, Isoaho SA, Green FB, Puhakka JA. Lime enhanced chromium removal in advanced integrated wastewater pond system, Bioresource Technology. 2006;97:529-534.
33. Shahriari T, Nabi Bidhendi G, Mehrdadi N, Torabian. A. Irrigating Melissa officinalis L. Medicinal Plant with Chromium Wastewater Treated by Electrocoagulation Journal of Medicinal Plants and By-products. 2012;2:139-144.
34. Waste output standard. Iran Department of Environment, Article 5, Eater Pollution Prevention Regulations. 2000. | ||
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