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2019 | 28 | 3 |
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Laboratory tests for efficient nitrate removal with water-washed zero valent iron and the associated mixed mediums

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The acid pre-washing of zero valent iron for improving removal efficiency would deduce the secondary pollution in groundwater, and more fine particles of zero valent iron would reduce the permeability of aquifers. In order to better understand the approaches of nitrate removal, a series of laboratory experiments was conducted in this study. Batch tests showed that washed zero valent iron powder and activated carbon are more efficient for removing nitrate than cemarite and zeolite, similar with the acid pre-washing zero valent iron. X-ray diffraction phase analysis showed that a kind of oxide Fe₃O₄ generated on the surface of the washed iron powder particles, which is mixed with Fe₂O₃ and FeO, is relatively loose and can improve the efficiency of nitrate removal. A continuous flow column system test showed that the coarse sand-zero valent iron mix (R1), the coarse sand-zero valent iron-activated carbon mix (R4), and the coarse sand-zero valent iron-sawdust mix (R5) are more effective for reducing nitrate than the coarse sand-activated carbon mix (R2) and the coarse sand-sawdust mix (R3). Components such as NO₂-N and NH₄⁺-N would have environmental concerns as well. Further chemical analysis on the fluids from nitrate removal treatment indicates that R1 and R4 are the most effective and also environmentally friendly media for nitrate removal. This study showed that R1 and R4 media could be developed into a viable technology for the removal of nitrate in high concentration of polluted groundwater.
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  • Shandong Province Key Laboratory of Water Resources and Environment, Water Resources Research Institute of Shandong Province, /Jinan, China
  • Shandong Province Key Laboratory of Water Resources and Environment, Water Resources Research Institute of Shandong Province, /Jinan, China
  • Shandong Province Key Laboratory of Water Resources and Environment, Water Resources Research Institute of Shandong Province, /Jinan, China
  • Shandong Province Key Laboratory of Water Resources and Environment, Water Resources Research Institute of Shandong Province, /Jinan, China
  • Shandong Province Key Laboratory of Water Resources and Environment, Water Resources Research Institute of Shandong Province, /Jinan, China
  • 1. Miotlinski K. Coupled reactive transport modeling of redox processes in a nitrate-polluted sandy aquifer. Aquat Geochem. 14, 117, 2008.
  • 2. Snyder C.S., Bruulsema T.W., Jensen T.L., Fixen P.E. Review of greenhouse gas emissions from crop production systems and fertilizer management effects. Agric. Ecosyst. Environ. 133, 247, 2009.
  • 3. Gu B., Ge Y., Chang S.X., Luo W., Chang J. Nitrate in groundwater of china: sources and driving forces. Global Environmental Change. 23 (5), 1112, 2013.
  • 4. Ahmed M.E. Khalil, Osama Eljamal, Skander Jribi, Nobuhiro Matsunag Promoting nitrate reduction kinetics by nanoscale zero valent iron in water via copper salt addition. Chemical Engineering Journal. 287, 367, 2016.
  • 5. Bian J.M., Liu C.H., Zhang Z.Z., Wang R., Gao Y. Hydro-Geochemical Characteristics and Health Risk Evaluation of Nitrate in Groundwater. Pol. J. Environ. Stud. 25 (2), 521, 2016.
  • 6. Dhondt K., Boeckx P., Verhoest N.E.C., Hofman G., Cleemput O.V. Assessment of temporal and spatial variation of nitrate removal in riparian zones. Environmental Monitoring and Assement. 116, 197, 2006.
  • 7. Dong-Wan C., Hocheol S., Schwartz F.W., Bokseong K., Byong-Hun J. The role of magnetite nanoparticles in the reduction of nitrate in groundwater by zero-valent iron. Chemosphere. 125, 41, 2015.
  • 8. Allison M. Bergquist, Jong Kwon Choe, Timothy J. Strathmann, Charles J. Werth Evaluation of a hybrid ion exchange-catalyst treatment technology for nitrate removal from drinking water. Water Research. 96, 177, 2016.
  • 9. Lapointe F., Fytas K., Mcconchie D. Efficiency of bauxsolTM in permeable reactive barriers to treat acid rock drainage. Mine Water and the Environment. 25, 37, 2006.
  • 10. Lee J.Y., Lee K.J., Sun Y.Y., Lee M.R., Kamala-Kannan S., Oh B.T. Stability of Multi-Permeable Reactive Barriers for Long Term Removal of Mixed Contaminants. Bull Environ Contam Toxicol. 84, 250, 2010.
  • 11. Zhang Y., Angelidaki I. A new method for in situ nitrate removal from groundwater using submerged microbial desalination-denitrification cell (SMDDC). Water Research. 47 (5), 1827, 2013.
  • 12. Li R., Feng C., Chen N., Zhang B., Hao C., Peng T. A bench-scale denitrification wall for simulating the in-situ treatment of nitrate-contaminated groundwater. Ecological Engineering. 73, 536,2014.
  • 13. Kim M.S., Lee D.W., Chung S.H., Ji T.K., Cho I.H., Lee K.Y. Pd-Cu bimetallic catalysts supported on TiO2-CeO2 mixed oxides for aqueous nitrate reduction by hydrogen. Journal of Molecular Catalysis A: Chemical. 392, 308, 2014.
  • 14. Chi I., Zhang S.T., Lu X., Dong L.H., Yao S.L. Chemical reduction of nitrate by metallic iron. J. Water Supply Res. Technol. 53 (1), 37, 2004.
  • 15. Fu F., Dionysiou D.D., Liu H. The use of zero-valent iron for groundwater remediation and wastewater treatment: A review. Journal of Hazardous Materials. 267, 194, 2014.
  • 16. Sun Y., Li J., Huang T., Guan X. The influences of iron characteristics, operating conditions and solution chemistry on contaminants removal by zero-valent iron: A review. Water Research. 100, 277, 2016.
  • 17. Su C., Puls R.W. Nitrate reduction by zerovalent iron: effects of formate, oxalate, citrate, chloride, sulfate, borate, and phosphate. Environ. Sci. Technol. 38, 2715, 2004.
  • 18. Burow K.R., Nolan B.T., Rupert M.G., Dubrovsky N.M. Nitrate in groundwater of the United States, 1991-2003. Environ. Sci. Technol. 44, 4988, 2010.
  • 19. Ahn Y.T., Kim H., Cho D.W., Jeon B.H. Removal of nitrate from groundwater using ZVI treatment system combined with continuous CO2 gas bubbling. Geosyst. Eng. 15, 60, 2012.
  • 20. Zhou H.Y., Liang S., Zeng S.S., Lei S.J. Chemical Reduction of Nitrate in Aqueous Solution by Iron Powder. Advanced Materials Research. 777, 71, 2013.
  • 21. Alowitz M.J., Scherer M.M. Kinetics of nitrate, nitrite, and Cr(VI) reduction by iron metal. Environ. Sci. Technol. 36 (3), 299, 2002.
  • 22. Tang S., Wang X.M., Mao Y.Q., Zhao Y., Yang H.W., Xie Y.F. Effect of dissolved oxygen concentration on iron efficiency: removal of three chloroacetic acids. Water Res. 73, 342, 2015.
  • 23. Bae S., Hanna K. Reactivity of nanoscale zero-valent iron in unbuffered systems: effect of pH and Fe(II) dissolution. Environ. Sci. Technol. 49 (17), 10536, 2015.
  • 24. O’Carroll D., Sleep B., Krol M., Boparai H., Kocur C. Nanoscale zero valent iron and bimetallic particles for contaminated site remediation. Adv. Water Resour. 51, 104, 2013.
  • 25. Liu Y., Majetich S.A., Tilton R.D., Sholl D.S., Lowry G.V. TCE dechlorination rates, pathways, and efficiency of nanoscale iron particles with different properties. Environmental Science and Technology. 39, 1338, 2005.
  • 26. Choe S., Chang Y.Y., Hwang K.Y., Khim J. Kinetics of reductive denitrification by nanoscale zero-valent iron. Chemosphere. 41 (8), 1307, 2000.
  • 27. Tang C., Zhang Z., Sun X. Effect of common ions on nitrate removal by zero-valent iron from alkaline soil. Journal of Hazardous Materials. 231-232, 114, 2012.
  • 28. Ganaskar A., Tatar L., Condit W. Cost and Performance Report-Nanoscale Zero-valent Iron Technologies for Source Remediation, Naval Facilities Engineering Service Center, Contract Number. N47408-01-D-8207,2005.
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