New and modern wastewater treatment plant for animal by-products producer


Nijhuis Industries Central Europe (NICE) successfully delivered an innovative and compact system for Biovast, a leading producer of animal by-products. The company is part of ARVI, a Lithuanian Group which specializes in the production of fertilizers, animal food, sugar, meat processing and various by-products, with production plants located in Central and Eastern Europe.

Biovast has upgraded the animal by-product processing plant to process 40 - 50.000 tons of animal by-products per year, increasing their annual capacity over 10 times. The customer wanted to build a new, modern wastewater treatment plant to meet the environmental requirements that allows treated wastewater to be discharged to the river. The system had to meet discharge quality and minimize the environmental impact and footprint, while ensuring fast execution on site.

The installation was designed to treat 40 m3/day of highly polluted rendering wastewater. The system consists of a filter, flocculation, flotation, a continuous biology, a dewatering step and two modular containers. The Nijhuis added value services covered installation, commissioning, start-up and service visits. To meet their requirements Biovast opted for a concrete biological tank and two containerized systems which simplified the transportation and minimized the installation works on site.

The containers were designed and executed to fit to the system requirements and provide an innovative ‘plug-and-play’ solution. The process equipment (filtration, flotation and sludge dewatering) was installed in one container. The remaining equipment including Nijhuis control panel and chemical dosing stations were mounted in the second unit.

After completion and commissioning in Q4 2014, the system has proven to be reliable, effective and easy to maintain, meeting all of Biovast’s requirements.