| Home | E-Submission | Sitemap | Contact Us |  
Environmental Engineering Research 2004;9(5): 223-230. DOI: https://doi.org/10.4491/eer.2004.9.5.223
PERFORMANCE OF pH STATIC LEACHING TEST FOR EVALUATING LEACHABILITY OF SOLIDIFIED WASTE FORMS
Dongjin Lee
School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
Corresponding Author: Dongjin Lee ,Tel: +61-2-9385-5562, Fax: +61-2-9385-6139, Email: dongj7@empal.com
Received: July 9, 2004;  Accepted: September 9, 2004.
Share :  
ABSTRACT
The pH static leaching procedure (PSLP) is useful for measurement of total potential leachabitity in accordance with the continuing addition of acidic leachant up to the point of the maximum breakdown of the cement-based solidified waste forms (SWF). A rate of dissolution of calcite-additional Pb-doped SWF (K.C5P10) some 4-5 times slower than Pb-doped SWF (KP10) is apparent. The release of calcium in K.C5P10 was slightly lower than that in KPH), and that of lead in KC5P10 was dramatically lower than that in KP10. The difference in remarkedly less reduction in weight of K.C5P10 is also indicative of the markedly higher resistance of KC5P10 to acid attack compared to that of KP10. In the PSLP, the leaching of Pb from Pb-doped SWF is proposed to be dependent on the amount of initial Pb concentration as well as the meq CHsCOOH added/g dry solidified waste during the PSLP. A maximum release of lead from Pb-doped SWF is found at the point at which a maximum amount of meq CH3COOH is added, and a plot of the leaching concentration (mg/L) and meq CH3COOH added/g dry solidified waste reveals that there is a quadratic relationship rather than a linear relationship between the two quantities.
Keywords: Cement | calcite | Lead | pH | pH Static Leaching Test
TOOLS
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
Share:      
METRICS
1
Crossref
0
Scopus
3,285
View
25
Download
FIXATION OF LEAD CONTAMINANTS IN Pb-DOPED SOLIDIFIED WASTE FORMS  2007 July;12(3)
Editorial Office
464 Cheongpa-ro, #726, Jung-gu, Seoul 04510, Republic of Korea
TEL : +82-2-383-9697   FAX : +82-2-383-9654   E-mail : eer@kosenv.or.kr

Copyright© Korean Society of Environmental Engineers.        Developed in M2PI
About |  Browse Articles |  Current Issue |  For Authors and Reviewers