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Reduction of micropollutants

From collection to elimination

The project "Best Available Technique (BAT) for the Reduction of the Input of Micropollutants from the Wastewater of Chemical-Physical Treatment (CP) Plants for Hazardous Waste into Water Bodies" aims to describe suitable organisational and technical measures to minimise the input of relevant trace substances in water bodies from CP plants. Relevant trace substances are anthropogenic organic substances that occur in water bodies in very low concentrations. Trace substances originate from different application areas and products, such as biocides, human and veterinary pharmaceuticals, plant protection products, industrial chemicals or personal care and cleaning products.

Physico-chemical treatment plants are used for the treatment of mainly hazardous liquid wastes. In the context of this project, only hazardous wastes that are liquid to sludge-like and have a relatively high water content of more than 80 mass percent are considered. The chemical-physical treatment transforms the incoming waste, which can be either liquid or solid. The liquid residues are then no longer classified as waste, but as waste water and legally no longer fall under the waste regime. Other regulations / directives therefore apply (including the Federal Immission Control Act, Industrial Emissions Directive, Wastewater Ordinance and municipal wastewater regulations). The main objective of the the FiW plant is therefore to convert hazardous substances into non-hazardous substances and to eliminate them as far as possible.

The role of the FiW

The role of the FiW is to conduct a detailed study of the German CP wastewater treatment plants for the following issues:

  • Treated types and quantities of liquid hazardous waste.
  • Used treatment processes or the wastewater treatment technology.
  • Generated quantities and characterisation of the respective waste water
  • Identification of trace substances with regard to their relevance for CP treatment plants according to the following criteria:
    - Environmental impact / toxicity / environmentally relevant dose
    - Accuring amount / year from CP wastewater treatment plants
    - Biodegradability in the wastewater treatment plant (WWTP)
    - Eliminability in a 4th purification stage at municipal wastewater treatment plants
    - Individual substances from certain waste producers of no general significance
  • Analysis of currently used technical and organisational measures to reduce organic micropollutants with regard to their effectiveness and suitability
  • Research into analytical methods and other measures for the early detection of trace substances


Dr.-Ing. Henry Riße
+49 241 80 2 68 18 / E-Mail

Dipl.-Ing. Alejandra Lenis
+49 241 80 2 68 42 / E-Mail


Federal Environment Agency


Lobbe Umwelt-Beratung GmbH; Indaver Deutschland GmbH; Institute for Urban Water Management of RWTH Aachen University (ISA)