Waste Management & Research

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mårtensson, A.M.
Right arrow Articles by Ågren, S.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Mårtensson, A.M.
Right arrow Articles by Ågren, S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Waste Management & Research, Vol. 17, No. 4, 296-304 (1999)
DOI: 10.1177/0734242X9901700406

Effect of humic substances on the mobility of toxic metals in a mature landfill

A.M. Mårtensson

Department of Soil Sciences, PO Box 7014, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden

C. Aulin

Department of Chemical Engineering and Technology, Royal Institute of Technology, SE 100 44 Stockholm, Sweden

O. Wahlberg

Department of Inorganic Chemistry, Royal Institute of Technology, SE 100 44 Stockholm, Sweden

S. Ågren

The Ragnar Sellberg Foundation for Waste Research and Development, Hogbytorp, SE 197 93 Bro, Sweden

The effect of the aeration of a landfill in its humic phase on the leaching potential of deposited metals has been investigated. Aeration increased the cation- exchange capacity, but decreased the buffering capacity and the metal-binding capacity. Leachates from the aerated landfill contained less than half the amount of aluminium, iron and molybdenum and more than double the amount of calcium, magnesium, sulfur and zinc of leachates derived from an identical, but anaerobic, landfill. The leachate from the aerated landfill was capable of extracting metals from the original landfill when recirculated. Leachate from the original landfill treated with leachate from the aerated landfill contained more than twice as much aluminium, boron, cadmium, chromium, copper, iron, lead, magnesium, nickel, phosphorus, potassium, sulfur and zinc than leachate from the identical anaerobic landfill. It was concluded that the mobility of deposited metals in landfills will change over time as the ageing of the landfills progresses and conditions become more oxidized.

Key Words: chelating agents • heavy metals • humic substances • humus • landfills • leachates • Sweden • toxic metals


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?