CUED Publications database

Effect of microbial activities on the mobility of copper in stabilised contaminated soil

Duru, UE and Al-Tabbaa, A (2005) Effect of microbial activities on the mobility of copper in stabilised contaminated soil. Stabilisation/Solidification Treatment and Remediation: Advances in S/S for Waste and Contaminated Land - Proc. of the International Conf. on Stabilisation/Solidification Treatment and Remediation. pp. 323-333.

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Stabilisation, using a wide range of binders including wastes, is most effective for heavy metal soil contamination. Bioremediation techniques, including bioaugmentation to enhance soil microbial population, are most effective for organic contaminants in the soil. For mixed contaminant scenarios a combination of these two techniques is currently being investigated. An essential issue in this combined remediation system is the effect of microbial processes on the leachability of the heavy metals. This paper considers the use of zeolite and compost as binder additives combined with bioaugmentation treatments and their effect on copper leachability in a model contaminated soil. Different leaching test conditions are considered including both NRA and TCLP batch leaching tests as well as flow-through column tests. Two flow rates are applied in the flow-through tests and the two leaching tests are compared. Recommendations are given as to the effectiveness of this combined remediation technique in the immobilisation of copper. © 2005 Taylor & Francis Group.

Item Type: Article
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:41
Last Modified: 18 Feb 2021 15:08
DOI: 10.1201/9781439833933.ch40