Veolia Water builds three units for the treatment of raw water and wastewater in Brazil

Celulose Riograndense, a member of the CMPC Group, has adopted the unique solutions offered by Veolia Water Solutions & Technologies for the treatment of its raw water and wastewater to comply with the very strict environmental regulations of the State of Rio Grande do Sul, where its pulp plant is located.

With more than 1,000 global references in the pulp and paper industry alone, Veolia Water Solutions & Technologies is the recognized leader in the treatment of effluent and black liquor produced by the industry.

Veolia Water Wins Largest Contract in Brazilian Pulp and Paper Sector

Under the terms of the EPC (engineering, procurement and construction) contract signed in April, Veolia will build three treatment facilities using the proprietary technologies that are most appropriate for the sector.

The first unit, with a capacity of 39,600 cubic meters per day, will produce demineralized water using ion exchange and condensate polishing to supply the boilers. The second unit, with a capacity of 108,000 cubic meters per day, will treat raw water before it is injected into the pulp production process. This part of the plant uses Actiflo, Veolia's unique clarification system supported by high-speed filters. Together these technologies guarantee the flexibility, effectiveness and efficiency of the solution. Finally the wastewater from the pulp plant will be treated in a third unit, developed by Aquaflow, - a company owned by Veolia - with a capacity of 140,000 cubic meters per day. MBBR (moving bed biofilm reactor) technology, developed by Veolia Water subsidiary AnoxKaldnes will be used prior to the activation and drying of the sludge for an optimized and environmentally responsible solution. This tertiary treatment will enable Celulose Riograndense to comply with the very strict régulations governing the discharge of wastewater into the natural environment.

The three treatment facilities are scheduled for delivery in April 2015.

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