The Finnish article

Aquaculture consultants join forces with water treatment experts

Kalavesi Consultants Ltd was founded in 1985. The founders previously worked with EWOS and this experience was important in Originally, the Ossauskoski hatchery was employed to produce

second company marketed cold and hot smoke rainbow trout. The original systems incorporated various types of bioreactors and the beginning, traps were built to capture solid waste from the tanks, supply river. Through various trials, the tanks and through this process, This developmental work was undertaken in-house, allowing the group to amass a substan useful and valuable nutrients. employed, but as understanding ing focus on sustainability and the becoming the norm.

was taken to exploit this experience and develop consultancy as a further source of income.

Within the group, is Clewer Technology Oy,

Clewer is an environmental technology com wastewater treatment systems. It has developed and patented, for example, a centrifugal bioreactor for wastewater treatment, the gy, other patents include the Star-Up bacteria

process of wastewater treatment, based on

There have been two experiments with rainbow trout since 2012 in 15°C and one batch with pikeperch in 21°C. With pikeperch, the

Clewer Technology has also built a zero-dis