Development of a New Zero-Valent Iron Zeolite Material to Reduce Nitrate without Ammonium Release
Publication: Journal of Environmental Engineering
Volume 133, Issue 1
Abstract
Previous studies have revealed that the application of zero-valent iron (ZVI) in reducing nitrate is limited by ammonium production and the requirement for adequate pH control. The current study focused on developing a new material potentially applicable in permeable reactive barriers, which can reduce nitrate without ammonium release under unbuffered pH. The new material, referred to as ZanF, is derived from zeolite modified by Fe(II), followed by borohydride reduction. The pseudo-first-order rate constant of ZanF in the early period of nitrate reduction was 10 times higher than that of the ZVI used in this study. However, the of ZanF decreased in the reaction period that followed. Even though both ZVI and ZanF produced ammonium as a product of nitrate reduction, ZanF removed it to below detection limits via adsorption, whereas ZVI did not remove it to any significant extent. ZanF maintained its high reactivity even under an initial pH of 6.2 without buffer. The higher ZanF/solution ratio increased the removal rate of ZanF as well as the removal efficiency.
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References
Alowitz, M. J., and Scherer, M. M. (2002). “Kinetics of nitrate, nitrite, and Cr(VI) reduction by iron metal.” Environ. Sci. Technol., 36(3), 299–306.
Boronina, T., Klabunde, K. J., and Sergeev, G. (1995). “Destruction of organohalides in water using metal particles: Carbon tetrachloride/water reactions with magnesium, tin, and zinc.” Environ. Sci. Technol., 29, 1511–1517.
Cheng, I. F., Muftikian, R., Fernando, Q., and Korte, N. (1997). “Reduction of nitrate to ammonia by zero-valent iron.” Chemosphere, 35(11), 2689–2695.
Chew, C. F., and Zhang, T. C. (1999). “Abiotic degradation of nitrates using zero-valent iron and electrokinetic processes.” Environ. Sci. Technol., 16(5), 389–401.
Choe, S., Chang, Y. Y., Hwang, K. Y., and Khim, J. (2000). “Kinetics of reductive denitrification by nanoscale zero-valent iron.” Chemosphere, 41, 1307–1311.
Devlin, J. F., Eedy, R., and Butler, B. J. (2000). “The effects of electron donor and granular iron on nitrate transformation rates in sediments from a municipal water supply aquifer.” J. Contam. Hydrol., 46, 81–97.
Devlin, J. F., Klausen, J., and Schwarzenbach, R. P. (1998). “Kinetics of nitroaromatic reduction on granular iron in recirculating batch experiments.” Environ. Sci. Technol., 32(13), 1941–1947.
Fuhrmann, M., Aloysius, D., and Zhou, H. (1995). “Permeable, subsurface sorbent barrier for : Laboratory studies of natural and synthetic materials.” Waste Manage., 15(7), 485–493.
Gillham, R. W., and O’Hannesin, S. F. (1994). “Enhanced degradation of halogenated aliphatics by zero-valent iron.” Ground Water, 32(6), 958–967.
Glavee, G. N., Klabunde, K. J., Sorensen, C. M., and Hadjipanayis, G. C. (1995). “Chemistry of borohydride reduction of iron (II) and iron (III) ions in aqueous and nonaqueous media: Formation of nanoscale Fe, FeB, and powders.” Inorg. Chem., 34, 28–35.
Huang, C. P., Wang, H. W., and Chiu, P. C. (1998). “Nitrate reduction by metallic iron.” Water Res., 32(8), 2257–2264.
Huang, Y. H., and Zhang, T. C. (2002). “Kinetics of nitrate reduction by iron at near neutral pH.” J. Environ. Eng., 128(7), 604–611.
Kielemoes, J., Boever, P. D., and Verstraete, W. (2000). “Influence of denitrification on the corrosion of iron and stainless steel powder.” Environ. Sci. Technol., 34(4), 663–671.
Lee, D. R. (2000). “Permeable reactive barriers action team meetings.” ⟨http://www.rtdf.org/public/permbarr/minutes⟩ (Feb. 16, 2000).
Li, L. Y., and Li, F. (2001). “Heavy metal sorption and hydraulic conductivity studies using three types of bentonite admixes.” J. Environ. Eng., 127(5), 420–429.
Li, Z., Jones, H. K., Bowman, R. S., and Helferich, R. (1999). “Enhanced reduction of chromate and PCE by pelletized surfactant-modified zeolite/zerovalent iron.” Environ. Sci. Technol., 33(23), 4326–4330.
Park, J. B., Lee, S. H., Lee, J. W., and Lee, C. Y. (2002). “Lab scale experiments for permeable reactive barriers against contaminated groundwater with ammonium and heavy metals using clinoptilolite (01-29B).” J. Hazard. Mater., B 95, 65–79.
Ponder, S. M., Darab, J. G., and Mallouk, T. E. (2000). “Remediation of Cr(VI) and Pb(II) aqueous solutions using supported, nanoscale zero-valent iron.” Environ. Sci. Technol., 34(12), 2564–2569.
Singh, J., Comfort, S. D., and Shea, P. J. (1999). “Iron-mediated remediation of RDX-contaminated water and soil under controlled Eh/pH.” Environ. Sci. Technol., 33(9), 1488–1494.
Su, C., and Puls, R. W. (2001). “Arsenate and arsenite removal by zero valent iron: Kinetics, redox transformation, and implications for in situ groundwater.” Environ. Sci. Technol., 35(7), 1487–1492.
Summer, M. E., and Miller, W. P. (1996). “Cation exchange capacity and exchange coefficients.” Methods of soil analysis: Part 3, Soil Science Society of America, Madison, Wis., 1220–1221.
Till, B. A., Weathers, L. J., and Alvarez, P. J. J. (1998). “Fe(0)-supported autotrophic denitrification.” Environ. Sci. Technol., 32(5), 634–639.
Wang, C. B., and Zhang, W. X. (1997). “Synthesizing nanoscale iron particles for rapid and complete dechlorination of TCE and PCBs.” Environ. Sci. Technol., 31(7), 2154–2156.
Westerhoff, P. (2003). “Reduction of nitrate, bromate, and chlorate by zero valent iron .” J. Environ. Eng., 129(1), 10–16.
Yabusaki, S., Cantrell, K., Sass, B., and Steefeel, C. (2001). “Multicomponent reactive transport in an in situ zero-valent iron cell.” Environ. Sci. Technol., 35(7), 1493–1503.
Young, G. K., Bungay, H. R., Brown, L. M., and Parson, W. A. (1964). “Chemical reduction of nitrate in water.” J. Water Pollut. Control Fed., 36, 395–398.
Zhang, P., Tao, X., Li, Z., and Bowman, R. S. (2002). “Enhanced perchloroethylene reduction in column systems using surfactant-modified zeolite/zero-valent iron pellets.” Environ. Sci. Technol., 36(16), 3597–3603.
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© 2007 ASCE.
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Received: Aug 18, 2004
Accepted: May 1, 2006
Published online: Jan 1, 2007
Published in print: Jan 2007
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