Attenuation of pollutants in municipal landfill leachate by passage through clay

The attenuating properties of purified kaolinite, montmorillonite, and illite were investigated by passing landfill leachate through laboratory columns containing mixtures of calcium-saturated clays and washed quartz sand. Effluent from the columns was periodically analysed for 16 chemical constitue...

Full description

Saved in:
Bibliographic Details
Published in:Environmental science & technology 1976-12, Vol.10 (13), p.1262-1268
Main Authors: Griffin, Robert A, Shimp, Neil F, Steele, John D, Ruch, Rodney R, White, W. Arthur, Hughes, George M
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The attenuating properties of purified kaolinite, montmorillonite, and illite were investigated by passing landfill leachate through laboratory columns containing mixtures of calcium-saturated clays and washed quartz sand. Effluent from the columns was periodically analysed for 16 chemical constituents and, after 6-10 months, the columns were sectioned and analysed to determine the vertical distribution of chemical constituents. Attenuation was a function of the cation-exchange capacity of the clay mineral, the cations present initially on the clay, and the chemical composition and pH value of the leachate. Montmorillonite had the highest attenuation ability, and kaolinite the lowest. (JOK)
ISSN:0013-936X
1520-5851
DOI:10.1021/es60123a006