R - T & A
Úvodní národní inventura POPs v ČR
Část VII - Technologie a biotechnologie
15. BIOREMEDIATION OF PERSISTENT ORGANIC POLLUTANTS - A REVIEW
The purpose of this paper is to review biological methods with a potential for the treatment of
groundwater and soil contaminated with pesticides, herbicides, polyaromatic hydrocarbons (PAHs),
chlorinated phenols, some textile dyes and other persistent organic pollutants (POPs) with the
exception of polychlorinated biphenyls (PCBs). The combination of biological method with chemical
or physical treatment is briefly discussed. The sequential use of two or more techniques in a treatment
train is a possible solution for remediation.
Practical use of these techniques in a pilot-plant or in full-scale application for remediation of polluted
sites with POPs is presented. The emphasis is put on state of the art of research and application of
biological methods for POPs elimination in the Czech Republic.
The first part of the paper describes general properties of POPs according to the United Nations
Environment Programme (UNEP) and of some chemicals that are considered as potential POPs to be
added to the list in connection with a clean-up/remediation strategy.
POPs are highly stable, chemically nearly non-reactive under common conditions. POPs are used as
herbicides, pesticides, fungicides and as raw materials for chemical production. 12 persistent organic
pollutants identified for priority action by the UNEP are listed in Table 5-1. These POPs require
urgent regulatory attention. Nine of these are pesticides whilst the other three include PCBs,
polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) (Fisher, 1999).
The last two have never been produced intentionally. They are produced by incineration processes
and, unintentionally, as by-products during chemical reactions (Wittich, 1998).
Another chemicals are considered as potential candidates to be i