Our offers for municipal wastewater treatment plants

Microplastic analysis as a comprehesive service

We offer a comprehensive service from standardized sampling to detection and reporting.

Once an appointment has been made, Wasser 3.0 takes care of the rest. Our microplastic analysis is based on fluorescence markers and enables fast, cost-effective, comparable, and scientifically validated microplastic monitoring.

Would you like to take action yourself?

Ask us about our manuals for standardized microplastic sampling and for standardized sample preparation.

Wastewater Treatment Plant
Wastewater Treatment Plant

Municipal wastewater treatment plants are a hotspot for microplastic emissions to the environment.

Although wastewater treatment plants can remove most of the microplastics within three treatment stages, they are still a significant source of microplastics in the environment due to the residuals and high volumes of wastewater

Therefore, the revised EU Urban Wastewater Directive (Directive 91/271/EEC) introduces the following mandatory routine measurements of microplastics in the wastewater treatment plant effluent:


  • Plants with more than 100,000 population equivalents (p.e.) must take samples at least twice a year, with a maximum interval of six months between samplings.
  • Plants with more than 10,000 p.e. must take samples only once every 2 years.
  • Wastewater treatment plants (>100,000 p.e.) must also monitor for the presence of microplastics in sewage sludge.

Everything from a single source

Take advantage of our all-round carefree package. Wasser 3.0 offers a standardized service for collecting data on microplastic pollution in municipal wastewater.


On-site sampling

  • We have developed a mobile sampling unit to enable fast and comparable sampling for microplastic detection.
  • Standardized, validated, and cross-validated.
  • Comprehensive and comparable data.
  • Flexible sampling times.


Rapid microplastic detection thanks to innovative fluorescent markers.

Our detection technology is based on selective fluorescent labeling of microplastics, making it fast, reliable, and cost-effective.

  • Validated and cross-validated method.
  • Proven in long-term studies on wastewater treatment plant effluent (> 200 samples).
  • Proven in 4th stage treatment plus long-term studies (microplastic and micropollutant removal).
  • Unit of measurement: microplastic particles (MP) / liter [MP / L].


Required conditions:

  • Access to the wastewater treatment plant.
  • Power supply.
  • Access to outlet manhole / outlet.
  • Access to tap water.

News in our blog

2. February 2024

Microplastics in industrial wastewater

Steigende gesetzliche Regulationen für Polymere, Kunststoffe und Mikroplastik, hohe Kosten für Wasser, Abfälle, Energie, Chemikalien und die Instandhaltung von Anlagen sowie komplexe Verschmutzungsszenarien - Unternehmen, die in ihren Prozessen viel Wasser, Polymere und weitere Chemikalien einsetzen, stehen vor der Herausforderung ihr Umwelt-, Abfall- und Ressourcenmanagements neu auszurichten. Mit dem Verfahren Wasser 3.0 PE-X® steht erstmals eine adaptive Komplettlösung für ein nachhaltiges und kosteneffizientes Sustainability Upgrade für die industrielle Wasserbehandlung zur Verfügung. Der Schwerpunkt des Verfahrens, das auf Green Chemistry, low-tech Anlagen und kreislaufwirtschaftliche Prozesse setzt, liegt in der Entfernung von Mikroplastik. Bei geringen Anschaffungs- und Betriebskosten verbessern sich dabei nicht nur die Wasserqualität, sondern auch Ressourcennutzung, Abfallaufkommen und Energieverbrauch.
19. January 2024

Forever Chemicals – PFAS (Part 2)

Per- and polyfluoroalkyl substances (PFAS) – synthetic “forever chemicals” – have become a substantial and pervasive global challenge. They have managed to infiltrate diverse ecosystems, contaminate water sources, and accumulate in human bodies. They are incredibly persistent and have significant adverse effects on both human health and the environment. Acting now to unravel the complexity of the PFAS problem and implement effective solutions is critical to prevent further accumulation in the environment and secure a healthier future for generations to come. Part two of our PFAS blog series will address the health risks associated with PFAS and the EU’s recently proposed restriction.
8. January 2024

Microplastics in wastewater treatment plants

Microplastics and highly viscous oligomers (including soluble polymers) cannot yet be removed within the purification stages of a wastewater treatment plant. For this reason alone, sewage treatment plants are considered to be emitters of microplastics into the environment. Read more in our blog.