Solution provider
ULTRAAQUA is an international manufacturer of advanced UV water disinfection systems for a wide range of water treatment applications.
Case
Water management
Water in industries
UV systems for the largest land-based RAS eel system in the world
3. October 2023
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Challenge
The client, located in Nanping, Fujian Province in China, aimed to build the largest land-based RAS eel system in the world. The location was chosen for its rich natural resources, proximity to freshwater sources, and high air quality.
The goal was to utilize advanced technology from both China and Europe to meet sustainability requirements and protect the environment. The project had a substantial budget of 268 million EUR and covered an area of 0.53 square kilometers.
It aimed to involve its own industry chain, including RAS aquaculture, eel deep processing, feed production, logistics, and an R&D center.
Solution
The project was divided into two phases: the first phase aimed to reach an annual production of 6,000 tons of eels, and the second phase aimed to reach 15,000 tons of eels. The project incorporated a state-of-the-art RAS technology system that included engineering, biology, and aquacultural environmental protection. This system ensured excellent water quality for the eels to thrive by including physical filtering, biological purification, and disinfection.
The facility was equipped with advanced equipment like control and alarm systems, water quality monitoring systems, and an automatic online monitoring system to control temperature, dissolved oxygen, pH, etc. A database system was also set up to record and output all operation data for testing and analysis.
Result
The project marked a new chapter of eel aquaculture in China, with the Zehui Aquaculture eel project receiving full support from the local government. It complied with policies to protect natural ecology and prevent water pollution. The indoor farming environment enabled water saving of 5% makeup water. The facility’s inclusion of the best possible disinfection equipment on the market ensured that the eels thrived in optimal conditions.
The systems installed:
- 96x MR7-350PP Open Channel PP
- 56x MR6-350PP
- 6x MR12-350SS ACN ULTRABARRIER
The systems are all sized in groups for varying flow rates, UV doses, and UV transmittance, for the treatment of glass eels, adult eels, and intake water.
