Doetinchem, 07-06-2023
After analyzing all treatment plants in the field of medical residues in wastewater, the Dutch sewage treatment plant (STP) in Houten emerged as a national hotspot. The state-of-the-art ozone plant is now in full operation at this STP for the additional removal and reduction of the amount of medical residues entering the environment.
This is a great example of micropollutants removal, improving the water quality in the Amsterdam- Rijnkanaal and seamlessly fitting with Nijhuis Saur Industries’ purpose, called #MissionWater.
From design to solution
After successfully completing the engineering phase with Nijhuis Saur Industries’ partners - Pannekoek GWW B.V. and Witteveen+Bos - the plant was built, tested, and successfully commissioned for Hoogheemraadschap De Stichtse Rijnlanden (HDSR).
Following the successful start-up of this new application, a combined team of the HDSR Water Authority and Nijhuis Saur Industries experts' are reviewing the results to optimize and adapt the performance of the plant.
Ozone technology partnership with De Nora
After a detailed comparison of different technologies, the HDSR Water Authority selected ozone technology as the basis of design. This was not only because of its proven and effective process to break down organic micropollutants in wastewater, such as endocrine-disrupting compounds and antibiotics, but also because of its low energy consumption, limited use of scarce raw materials, and low life-cycle cost. The compact and modular installation is designed to treat a maximum of 870 m3 of wastewater per hour using a De Nora Capital Controls® ozone generator.
Ozone plant assembled in box frame, incl. ozone contact tank
Ozongenerator in boxframeHenri Besselink, Nijhuis Saur Industries Director Projects, and Services, adds: “At Nijhuis Saur Industries, we gained extensive know-how and experience to design and build the best available solution for the removal of medical residues from municipal wastewater. The partnership with De Nora for the supply of the ozone generator technology is crucial to meet the demanding regulatory requirements, especially as the project in Houten is the first out of four projects, we are realizing for different Dutch water authorities.”
About Hoogheemraadschap De Stichtse Rijnlanden
Water authority Hoogheemraadschap De Stichtse Rijnlanden (HDSR) is one of the 21 water authorities in the Netherlands. HDSR is responsible for flood control, water quantity, water quality and treatment of urban wastewater. Operational tasks include the management of pumping stations, wastewater treatment plants, maintenance of waterways and flood defense structures. We serve most of the province of Utrecht and a small part of the province of Zuid-Holland. The area comprises 82.000 hectares in total. We have 17 wastewater treatment plants, 9700 km of man-made waterways, 1400 km of principal watercourses,700 dams, locks and culverts, 440 km of local dikes, 150 polder pumping-stations and 60 km of river dikes.
About De Nora
De Nora was founded in 1923 by Oronzio De Nora. The Company is committed to developing unconventional solutions to achieve the energy transition towards decarbonization, enable the hydrogen economy and ensure clean water for everyone. De Nora's technologies are recognized as a high-value enabler that facilitates transformational processes for many industrial applications: primary chemicals production, electronics applications, water purification, galvanic processes, energy storage, infrastructural corrosion protection, and many others. Over the past decade, the Group has had an outstanding track record of organic growth, supported by innovation and successful M&A activities in several countries. De Nora has 25 operating companies in 10 countries and 5 R&D centers in Italy, the United States, and Japan, which ensure the continuous improvement and enlargement of its proprietary technologies covered by about 260 patent families with more than 2,800 territorial extensions. With its widespread presence and broad product portfolio, the Company can effectively serve customers in 100 countries, employing more than 1,900 people worldwide.
About Nijhuis Saur Industries
Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery. Since the inception of Saur’s Industrial Water platform in 2019 more than 12 companies have been successfully acquired and integrated into one global operating company supporting municipal and industrial clients in over 140 countries with engineering and consultancy services, EPC / DBFOM project execution, mobile water solutions and O&M site services. With an extensive portfolio of innovative technologies and game-changing solutions, Nijhuis Saur Industries is now delivering local, scalable, and circular water-on-demand solutions to more than 5000 references around the world and contributing to a more sustainable and resilient future.
Our purpose is to be an advocate for water, ensuring everyone gives water the value it deserves. With our unique Customer for Life approach, we protect water resources, contribute to the water-, energy- and food transition, and help to restore and close the water loop. We call it #MissionWater.
www.nijhuissaurindustries.com
Ozoninstallation STP Houten - HDSR