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Nijhuis Saur Industries

Project context & challenges

With over 50 years of experience, Azomureș S.A. stands as Romania’s leading producer of mineral fertilizers for agriculture. The company supplies farmers nationwide with high-quality nitrogen (N) and complex NPK fertilizers that support crop productivity and soil health. Construction of the Tirgu Mureș production facilities began in 1962 and expanded in phases over the years. Today, the plant spans approximately 100 hectares in the southwestern part of the city. In 2012, Azomureș joined the Ameropa Group, strengthening its position in both local and international markets.

Azomureș aims to become a greener and more sustainable company. As part of this vision, the company launched a major investment project that includes the construction of a biological wastewater treatment plant. This facility helps protect the local environment by discharging clean, treated water into the Târgu Mureș River. In addition to the wastewater treatment plant, the project also modernizes the urea and ammonia production lines. This comprehensive upgrade ranks among the largest and most advanced industrial developments in Romania, meeting the latest national standards for environmental protection and production efficiency.

Key figures

22 500 m3/d
Flow rate
"One of our current objectives is to become a ‘green’ company. In the light of this aspiration, Azomures intends to build a new biological wastewater treatment plant to discharge clean effluent into the river.   "

Mr. Aurel Botezan

Technical Director

Customer benefits

Smart incorporated controls to manage and monitor the system

Smart incorporated controls to manage and monitor the system

Fast-track project delivery

Complete turnkey system

Robust design based on the lowest OPEX

Solution

In July 2014, Nijhuis Saur Industries won a contract to deliver a full-scale wastewater treatment project for Azomureș S.A. The challenge was clear: treat a large wastewater flow using a compact design within a limited space. Azomureș needed a reliable system with low operational costs (OPEX).

Nijhuis and W+B developed a smart solution. The design included a pumping station to move the wastewater 4.5 km from the Azomureș site to the Aquaserv location. There, two biological treatment lines handle the flow. Each line includes pre- and post-denitrification and aeration tanks. The system treats both production and brewery wastewater to ensure high-quality results.

By November 2015, the team finished civil works. They added specialized seeding sludge to help bacteria grow and adapt quickly in the system. This ensured a stable biological process from the start.

The plant started full operation in mid-November 2015. Since January 1, 2016, Aquaserv operators and the Nijhuis i-MONITORING team have monitored the plant daily to ensure optimal performance and compliance.

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