Problem

TripleNine, a leading producer of fishmeal and fish oil, handles large volumes of unloading water from fishing vessels that contain significant amounts of dissolved and suspended fish protein and oil. Discharging this stream with only conventional treatment meant losing valuable marine nutrients and putting additional pressure on the wastewater system. This challenged the company’s resource efficiency and responsibility.

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Solution

To address this challenge BioAqua has developed and manufactured a complete system for the recovery of fish protein and fish oil from the unloading water at TripleNine. The system is fully integrated into the existing processing plant and designed for continuous operation, following the unloading of fishing vessels and fluctuating water volumes.

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The system concentrates the valuable ingredients from the water – ingredients that would otherwise be lost through evaporation, incurring high costs and increasing the risk of elevated salt levels in the final product, or simply discarded, with additional expense for cleaning and transport.

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Three large flotation tanks treat the water in a 2-step process: one food-grade treatment and one traditional. This efficiently separates solids, oil, and dissolved organic matter, reduces the load on downstream treatment, and recovers high-quality protein and oil fractions that can be reused as valuable raw materials in the feed industry.

 

Result

With this installation, TripleNine turns a former waste stream into a resource, improving yield, and minimizing losses.