Wastewater Services
Wastewater treatment at Chemelot.
The IAZI.
Circle Infra Partners operates the Integral Wastewater Treatment Plant at Chemelot, known as the “IAZI. This biological treatment plant treats process water from more than 60 different plants at Chemelot. In addition, the IAZI also treats sewage from the buildings on the site, as well as rainwater and cooling water. Using biomass (bacteria), wastewater is treated in a complex biological process. After treatment, the treated water, also called the effluent, is safely discharged into the Ur River, a river connected to the Meuse River. This process is closely monitored to ensure that the water entering the environment meets all environmental standards and contributes to the protection of our water resources.
Water quality for humans and the environment.
For more than 40 years, we have been committed to clean surface water and good water quality for people and the environment. The IAZI is vital to the Chemelot site. Wastewater may contain a wide range of contaminants, in micrograms per liter or lower concentrations. As operator of the Chemelot umbrella water permit, we bear the responsibility of meeting all permit requirements and operating within the established standards, with great care and every day. We are also closely monitoring the ecological effects on the Natura 2000 area of Grensmaas.
The biological treatment in the IAZI has state-of-the-art removal efficiency and is considered the “best available technology” for process water treatment. The sewer network and the IAZI are continuously monitored with in-line analytical instruments and a bio-monitor to ensure effluent quality and quantity. During incidents, emergencies or extreme weather conditions, process water is stored in temporary basins to prevent potential disruptions to the IAZI’s operations.
Leader in water treatment and permitting.
Future-proof water management
at Chemelot is taking shape.
The transition to renewable energy and green resources cannot be separated from a sustainable approach to industrial water use. Therefore, water transition is also high on the agenda. For example, we are identifying various options for reducing water use and emissions to surface water, taking into account the stricter regulations around water permits and major process changes that will occur at the site as a result of sustainability steps.
Latest news and updates.
Chemelot and water: what you need to know
The companies on the Chemelot site take in surface water and also discharge wastewater. Circle Waste Water Services treats wastewater from all plants at Chemelot, complying with strict Dutch and European legislation.
OASE project reaches highest point of water tanks: major milestone for Chemelot
The construction of these collection tanks marks an important milestone in the OASE project. With the installation of the roofs, the highest point has been reached, bringing a step closer to more effective water treatment at Chemelot.
IAZI in Turnaround Phase 3: The Startup
At Circle Wastewater Services, we are proud to report that the Integrated Wastewater Treatment Plant (IAZI) is fully operational again after an intensive six-week turnaround. Thanks to the efforts of many professionals and partners, Street 6100 was thoroughly cleaned, maintained and safely restarted.
IAZI in Turnaround Phase 2: Maintenance Implementation.
The Turnaround (TA) at the Integrated Wastewater Treatment Plant (IAZI) has been in full swing for several weeks. The first phase, consisting of emptying and cleaning, has been successfully and safely completed. The maintenance phase has now begun.
IAZI in Turnaround Phase 1: Emptying and cleaning.
Recently, Circle Wastewater Services began a Turnaround (TA) of the Integrated Wastewater Treatment Plant, also known as the “IAZI. This biological treatment plant treats process water from more than 60 different plants at Chemelot.
Positive development in sustainable water management at Chemelot: OASE project in full swing
The OASE project marks a major step towards more sustainable and efficient water management at Chemelot. Thanks to the cooperation between Circle Infra Partners, Royal HaskoningDHV, BLM Industrial Contracting and many subcontractors, we are working together towards a circular and climate-neutral future.
Circle Infra Partners in conversation about healthy water
‘Healthy Water. Not self-evident’ highlights the increasing urgency of freshwater issues in the Netherlands. This book, with contributions from various experts, including Circle Infra Partners, offers valuable insights and solutions for maintaining water quality.
OASE project for sustainable water management at Chemelot launched
Circle Infra Partners initiated the OASE project, with new catch basins and additional treatment of process water.
This keeps us at the forefront by ensuring clean and efficient treatment of the site’s water.
Circle Wastewater Services satisfied with court ruling
Geleen, July 11, 2024 – Circle Wastewater Services B.V. (Circle), as permit holder, is satisfied with the recent ruling of the Limburg District Court in connection with the lawsuit against decisions of the Limburg Water Board. The case was brought because of some unworkable regulations in its permit.
OASE project for sustainable water management at Chemelot
Circle Infra Partners and BLM Industrial Contracting sign agreement to launch OASE project for sustainable water management at Chemelot.
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