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CLC number: O613.61; X523

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Received: 2005-01-18

Revision Accepted: 2005-01-30

Crosschecked: 0000-00-00

Cited: 9

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.5 P.307~310

10.1631/jzus.2005.B0307


Simultaneous removal of nitrate and heavy metals by iron metal


Author(s):  HAO Zhi-wei, XU Xin-hua, JIN Jian, HE Ping, LIU Yong, WANG Da-hui

Affiliation(s):  Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   hawk200044@126.com

Key Words:  Simultaneously removing, Iron metal, Nitrate, Heavy metal


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HAO Zhi-wei, XU Xin-hua, JIN Jian, HE Ping, LIU Yong, WANG Da-hui. Simultaneous removal of nitrate and heavy metals by iron metal[J]. Journal of Zhejiang University Science B, 2005, 6(5): 307~310.

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author="HAO Zhi-wei, XU Xin-hua, JIN Jian, HE Ping, LIU Yong, WANG Da-hui",
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pages="307~310",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.B0307"
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%A HAO Zhi-wei
%A XU Xin-hua
%A JIN Jian
%A HE Ping
%A LIU Yong
%A WANG Da-hui
%J Journal of Zhejiang University SCIENCE B
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0307

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T1 - Simultaneous removal of nitrate and heavy metals by iron metal
A1 - HAO Zhi-wei
A1 - XU Xin-hua
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A1 - HE Ping
A1 - LIU Yong
A1 - WANG Da-hui
J0 - Journal of Zhejiang University Science B
VL - 6
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SP - 307
EP - 310
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.B0307


Abstract: 
Great attention should be paid now to simultaneously removing common pollutants, especially inorganic pollutants such as nitrate and heavy metals, as individual removal has been investigated extensively. Removing common pollutants simultaneously by iron metal is a very effective alternative method. Near neutral pH, heavy metals, such as copper and nickel, can be removed rapidly by iron metal, while nitrate removal very much slower than that of copper and nickel, and copper can accelerate nitrate removal when both are removed simultaneously. Even a little amount of copper can enhance nitrate removal efficiently. Different mechanisms of these contaminants removal by iron metal were also discussed.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Cantrell, K.J., Kaplan, D.I., Wietsm, T.W., 1995. Zero-valent iron for the in situ remediation of selected metals in groundwater. J. Hazard Mater., 42:201-212.

[2] Cheng, I.F., Muftikian, R., Fernando, Q., 1997. Reduction of nitrate to ammonia by zero-valent iron. Chemosphere, 35:2689-2695.

[3] Haugen, K.S., Semmens, M.J., Novak, P.J., 2002. A novel in situ technology for the treatment of nitrate contaminated groundwater. Water Research, 36:3497-3506.

[4] Huang, C.P., Wang, H.W., Chiu, P.C., 1998. Nitrate reduction by metallic iron. Water Research, 32:2257-2264.

[5] Ku, Y., Chen, C.H., 1992. Kinetic study of copper deposition on iron by cementation reaction. Separation Science and Technology, 27(10):1259-1275.

[6] Matheson, L.J., Tratnyek, P.G., 1994. Reductive dehalogenation of chlorinated methanes by ironmetal. Environ. Sci. Technol., 28:2045-2053.

[7] Ottley, C.J., Davison, W., Edmunds, W.M., 1997. Chemical catalysis of nitrate reduction by iron(II). Geochimica et Cosmochimica Acta, 61:1819-1828.

[8] Shokes, T.E., Moller, G., 1999. Removal of dissolved heavy metals from acid rock drainage using iron metal. Environ. Sci. Technol., 33:282-287.

[9] Stumm, W., Morgan, J.J., 1981. Aquatic Chemistry: An Intrduction Emphasizing Chemical Equilibria in Natural Water. 2nd Ed., John Wiley & Sons, Inc., New York.

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