L2-9023 — Final report
1.
The role of flue gas desulphurization in mercury speciation and distribution in a lignite burning power plant

The study was conducted on a lignite burning thermal power plant which combines five power units totalling 775 MW with a yearly consumption of about 4 million tons of lignite. A mass balance for mercury and 39 trace and major elements was estimated in two units under different operational conditions. Among other trace elements the distribution of volatile As, Br and Se were also followed, showing that Se and Br are enriched along with Hg in the FGD products.

COBISS.SI-ID: 21837607
2.
Mercury species, mass flows and processes in a cement plant

The aim of the study was to evaluate the behavior of mercury in the cement clinker production process. It was shown that the process comprises many mercury cycles which are strongly dependent on the operating conditions and technological specifics. Cycling of mercury causes a significant enrichment of mercury inside the process. The quantities of Hg(t), Hg(g) and Hg2+(g) emitted were higher when operating with the raw mills off (direct mode). It was seen that the efficiency of Hg removal was strongly related to the dust removal efficiency.

COBISS.SI-ID: 23405095
3.
Validation of methodology for determination of the mercury methylation potential in sediments using radiotracers.

A method using radiotracer 197-Hg of high specific activity was developed and validated. The method alows to study mercury oxidation and reduction in aqueous media, as well as partiotioning of Hg(II) between aqueous and solid particles. This is very usefull toll to study mercury behaviour in wet FGD in laboratory scale experiments.

COBISS.SI-ID: 21505063
4.
The role of FGD in mercury speciation and its distribution in a lignite burning power plant

Mass balance and potential catalytic oxidation potential in the FGD was presented and discussed for the coal burning power plant .

COBISS.SI-ID: 21898791
5.
Oxidation of Hg(0) in FGD

Invited lecture presented at the technical meeting organized by the US EPA initiated the development of new cost-effective approach for the removal of Hg along with other contaminats in conventional wet FGD system.

COBISS.SI-ID: 23029799