Article

A column study of soil contamination by lead: influence of pH and carbonate content. II. Mathematical model.

Depto. de Ingeniería Química, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
Journal of Environmental Science and Health Part A (impact factor: 1.19). 02/2001; 36(6):1015-26. DOI:10.1081/ESE-100104128 pp.1015-26
Source: PubMed

ABSTRACT A mathematical model is used for the interpretation of the results from earlier experimental studies in lab-scale columns on the contamination of a carbonatic soil with lead. Local equilibrium conditions suffice to reproduce the experimental curves for every pH value of the influent contaminant solution and carbonate content of the soils essayed, but heterogeneous contact between the aqueous and solid phase should be included. This heterogeneous contact is responsible for the important tailing effects observed, and is difficult to estimate even for the lab conditions. Then, important uncertainties should be accepted both for risk assessment and in situ remediation feasibility studies.

0 0
 · 
0 Bookmarks
 · 
20 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

carbonate content
 
contamination
 
difficult
 
heterogeneous contact
 
influent contaminant solution
 
lab conditions
 
Local equilibrium conditions
 
pH value
 
situ remediation feasibility studies
 
soils essayed
 
solid phase