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Published online 2 February 2006
Published in J Environ Qual 35:442-449 (2006)
DOI: 10.2134/jeq2005.0312
© 2006 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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Leaching of Carbonated Air Pollution Control Residues Using Compliance Leaching Tests

Pin-Jing Hea,*, Hua Zhanga, Li-Ming Shaoa and Duu-Jong Leeb

a State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
b Chemical Engineering Department, National Taiwan University, Taipei, Taiwan, 10617


Figure 1
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  		Fig. 1. The procedures adopted by the three mentioned leaching tests. EN, European shake test (EN 12457-3); GB, Chinese method for determining the leaching toxicity of solid waste (GB 5086.1-1997); TCLP, Toxicity Characteristic Leaching Procedure.

 

Figure 2
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  		Fig. 2. Leachate characteristics of the air pollution control (APC) residues during the carbonation process using different compliance leaching tests. EN, European shake test (EN 12457-3); GB, Chinese method for determining the leaching toxicity of solid waste (GB 5086.1-1997); TCLP, Toxicity Characteristic Leaching Procedure.

 

Figure 3
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  		Fig. 3. pH-dependent leaching profiles of heavy metals from the carbonated air pollution control (APC) residues based on experimental ({square}, {Delta}, x) and calculated results (GB/EN-C and TCLP-C are the results without input of CO32–; GB/EN-C-1 and TCLP-C-1 are the results with input of 0.15 and 0.075 mol L–1 CO32–, respectively; GB/EN-C-2 and TCLP-C-2 are the results of pure heavy metals carbonates). EN, European shake test (EN 12457-3); GB, Chinese method for determining the leaching toxicity of solid waste (GB 5086.1-1997); TCLP, Toxicity Characteristic Leaching Procedure.

 




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