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Published online 4 January 2008
Published in J Environ Qual 37:47-56 (2008)
DOI: 10.2134/jeq2007.0151
© 2008 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Phosphate Treatment of Firing Range Soils: Lead Fixation or Phosphorus Release?

Dimitris Dermatas, Maria Chrysochoou, Dennis G. Grubb and Xuanfeng Xu*

W.M. Keck Geoenvironmental Lab., Stevens Inst. of Technology, Hoboken, NJ 07030, USA


Figure 1
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  		Fig. 1. Soil pH in PATF and FDR26 soils for 1 and 28 d of curing.

 

Figure 2
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  		Fig. 2. Leachate pH and dissolved Pb in the (a) PATF-TCLP, (b) PATF-SPLP, (c) PATF-DIW, (d) FDR26-TCLP, (e) FDR26-SPLP tests.

 

Figure 3
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  		Fig. 3. Dissolved P concentrations in the (a) PATF-SPLP, (b) FDR26-SPLP tests.

 

Figure 4
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  		Fig. 4. X-ray powder diffraction (XRPD) patterns of PATF soil, (a) untreated, (b) treated with 100 g/kg MCP, 28 d curing, (c) 100 g/kg MCP, 28 d, TCLP (d) SPLP, (e), and DIW residues. Key: Q: Quartz, F: Feldspar, Ce: Cerussite, Br: Brushite.

 

Figure 5
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  		Fig. 5. X-ray powder diffraction (XRPD) pattern of FDR26 soil treated with 15 g/kg MCP at 28 d curing.

 




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