STUDY OF THE TOXICOLOGICAL IMPACT
OF DIFFERENT COMPONENTS OF ASH-HEAP WATER (SULPHUR RICH PHENOLIC LEACHATE) USING LUMINESCENT BACTERIA AS TEST ORGANISMS
A. KAHRU
M. KURVET
I. KURVET
Institute of Chemical Physics and Biophysics
Estonian Academy of Sciences
Tallinn, Estonia
| The chemical composition and the toxicity of sulphur rich
phenolic leachates (ash-heap water; AHW) was determined and impact of its main components
(phenolic and sulphuric compounds, heavy metals) and pH to the net toxicity of AHW was estimated.
According to the analysis and calculations the toxicity of AHW was mainly caused by its phenolic
and sulphuric compounds whereas the main contributors were p-cresol (58 % of the toxicity),
sulphide (22 %), 3,4-dimethyl- phenol (8.5 %) and phenol (5.6 %). The toxicity of AHW and its components was analyzed using P h o t o b a c t e r i u m p h o s p h o r e u m - based BioToxTM test. |