Metsä Fibre, Kemi Mill

flootech metsäfibre kemi mill reference

Metsä Fibre, Kemi Mill decided to replace two old water treatment and demi plants  by a new energy efficient process. Flootech has delivered a complete process solution that includes raw water  treatment, demin water treatment and  condensate polishing. The new facility replaces two existing water treatment plants  at the Kemi mill and improves the quality of produced water as well as the operational reliability.

The raw water treatment plant has two lines; one so called cold line operates in 20‐35 degrees Celsius  and the other so called warm line operates  in temperatures up to 60 degrees Celsius. High temperature flotation is a very exceptional solution and a very rare competitor could offer a similar system.  Raw water is pre-heated cooling water from evaporation plant and has not been exploited before. By reusing warm cooling water as raw water, heating demand of source water has been reduced significantly. Additionally the process heat from flue gas condensate is used to warm chemically treated raw water.

Due to the new user-friendly and energy efficient water  plant  the customer can improve the quality of pulp  and decrease waste material. With the optimal application of technology and process solutions we have delivered a sustainable, energy‐efficient process which reduces customer´s business risk. The plant takeover was in March 2012.

Related solutions

flootech raw water treatment solution Flootech’s clarification process softens water, removes turbidity, algae, color, iron and metals. Ideal for removing suspended solids from raw water, if clarified water requires further polishing by filtering, residual solids are efficiently removed via granular media filtration systems, which use sand, anthracite and/or activated carbon. Solid particles are trapped in the media and, when exhausted, are flushed by backwashing with air and water.
flootech chemical handling solution Correct chemical storage and dosing is essential to the proper operation of industrial and municipal water and wastewater treatment plants. The correct selection of chemicals, chemical dose rate and mixing parameters is critical and has a direct impact on the availability, performance and service life of process equipment.
flootech parts and services solution Flootech is proud to supply complete processes and to provide the diverse knowledge and expertise required to ensure that the plant and processes operate reliably. We target at optimized process results and economical operational costs at the customer’s plant. Customer satisfaction is our first priority. A delivery from Flootech ensures close cooperation with the customer starting from the evaluation of the best technological solution to installation, process optimization, training and start-up as well as after sales services covering spare part support and maintenance.

Related technologies

flootech floodaf technology Dissolved Air Flotation (also known as microflotation) is a well-known method of particle separation. Microbubbles are created by dissolving air into water under pressure. When the air-saturated pressurized water is released, microbubbles are formed. Chemical, physical and electrical forces cause suspended solids and colloids to attach to one another and to air bubbles. These particle flocs then float to the water’s surface and are scraped off. Coagulation and / or flocculation chemicals are used to enhance the process.
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FlooSand™ G sand filtration process

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FlooIX™ mixed bed process

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