Biotesting Integral Toxicity of Corrosion Inhibitors, Biocidesand Oil Hydrocarbons in Oil-and Gas-Processing Industry

摘要

In recent years bioassays have been widely used for assessing levels ofcontamination of the environment. This is due to the fact that test-organisms provide ageneral response to toxicants present in samples. Based on microorganisms as test objects, itis possible to develop cheap, sensitive and rapid assays to identify environmental xenobioticsand toxicants.The objective of the research was to develop different microbiological assays forassessing integral toxicity of water environments polluted with corrosion inhibitors, biocidesand hydrocarbons in oil- and gas-processing industry.Bioluminescent, electro-orientational, osmo-optic and microorganism reducingactivity assays were used for express evaluation of integral toxicity. They are found todetermine promptly integral toxicity of water environments containing various pollutants (oil,oil products, corrosion inhibitors, biocides). Results conclude that the assays may be used foranalyzing integral toxicity of water polluted with hydrocarbons, as well as for monitoring ofwater changes as a result of biodegradation of pollutants by microorganisms and theirassociations. Using a kit of different assays, it is also possible to evaluate ecological safety ofbiocides, corrosion inhibitors, and their compositions. Bioassays used as a kit are moreeffective than each assay individually, allowing one to get complete characterization of areaction of bacterial test organisms to different environments.The research was supported by ISTC projects ## 119-95 and 2245p.