Test No. 244: Protozoan Activated Sludge Inhibition Test
This Test Guideline describes a method to assess effects of a test chemical on the phagocytotic activity of activated sludge containing protozoan organisms under defined conditions in the presence of different concentrations of the test chemical. The principle of biological sewage-treatment plants (...
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| Format: | eBook |
| Language: | English |
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Paris
OECD Publishing
2017
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| Series: | OECD Guidelines for the Testing of Chemicals, Section 2
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| Collection: | OECD Books and Papers - Collection details see MPG.ReNa |
| Summary: | This Test Guideline describes a method to assess effects of a test chemical on the phagocytotic activity of activated sludge containing protozoan organisms under defined conditions in the presence of different concentrations of the test chemical. The principle of biological sewage-treatment plants (STP) is to transform the organic matter of incoming waste-water in microbial biomass, which in turn is separated from the liquid yielding a purified effluent. The purpose of the test is to provide a means to record effects of test chemicals on ciliated protozoa in sewage treatment plants, which due to their grazing on bacteria considerably contribute to the functioning of STPs |
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| Physical Description: | 14 p |
| ISBN: | 9789264284029 |