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Methods for determining degradation rates of organic chemicals in landfilledwaste and groundwater

Objective

To measure degradation rates of organic chemicals in waste disposal sites and in groundwater employing both in situ methods and laboratory methods in order to make a scientific comparison of these two approaches and to provide a scientific basis for : (i) the evaluation of the risks associated with organic chemicals purposely or accidentally released into waste disposal sites or groundwater; (ii) assessing pollution plumes and designing remedial action at abandoned waste disposal sites; and (iii) development of methods for testing waste intended for landfilling (e.g. in accordance with EEC Landfilling Directives).


The project will address five problems :

o The influence that particle surfaces have on the degradation rates of organic chemicals in groundwater under anaerobic conditions (to be investigated in a series of laboratory experiments).

o Correlation of degradation rates of xenobiotic organic compounds with measurements of microbial biomass and activity under aerobic and anaerobic conditions in laboratory set-ups.

o Comparison of degradation rates of xenobiotic organic groundwater pollutants in unconsolidated sediments in in situ microcosms and in laboratory set-ups under aerobic and anaerobic conditions.

o Development of a "borehole-microcosm" for determining degradation rates of organic chemicals in consolidated sediments under aerobic and anaerobic conditions.

o Determination of organic chemical degradation rates in methanogenic waste disposal sites by means of an "artificial borehole-microcosm".

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

TECHNICAL UNIVERSITY OF DENMARK
Address
Building 115, Dtu
2800 Lyngby
Denmark

Participants (1)

NERC British Geological Survey
United Kingdom
Address
Nicker Hill
NG12 5GG Keyworth