Ecotoxicological Analyses of Water/Waste Water
The environmentally sound disposal or use of contaminated water and waste water requires prior, extensive analysis of chemical and biological parameters.
Biological testing involves exposing test organisms to various dilution stages of water/waste water in order to determine
the cumulative impact.
Test criteria may include survival, reproduction, growth,
buoyancy, behaviour or genotoxic impact.
The standard organisms used for biotests are fish (fish eggs), daphnia, algae and bacteria.
A range of additional test methods are also used to determine the degradability of complex water/waste water mixtures.
The following and other tests can be performed:
- Luminescent bacteria test DIN EN ISO 11348-2 (L52)
- Algae test DIN 38412-L33
- Daphna test DIN 38412-L30
- Fish egg test DIN EN ISO 15088 (T6)
- Umu test DIN 38415-T3
- Biological degradability:
- Zahn-Wellens test DIN EN ISO 9888 (L25)
- Closed bottle test DIN EN ISO 10707 (L 46)
- DOC die away test DIN EN ISO 7827 (L29)
- Manometric respiration test DIN EN ISO 9408 (L22)
- Sewage treatment plant elimination test DIN 38412-L26
We will gladly assist you in the subsequent assessment of all findings. A large proportion of the tests can also be performed according to OECD Guidelines, EC Regulation 440/2008, or other DIN EN ISO standards.
- Waste Water Ordinance (AbwV)
- Indirect Discharge Regulation (IndV)