Veolia Water Technologies will provide a turnkey processing plant featuring HPD evaporation systems designed to optimize the production of wood-derived pulp employed in the making of high-quality paper from virgin fibers.
At the industrial site in Saint-Gaudens on the foothills of the Pyrenees in southwestern France, Fibre Excellence, a holding group specialized in the paper and forest-products industry, installs a new turbine to generate green energy from biomass. To optimize the overall efficiency and justify the economics of the investment, this extra energy must be consumed at the site. Among many other initiatives, Fibre Excellence plans to enhance pulp quality through improved washing operations. To remove the excess water created in the black liquor, Veolia supplies HPD® falling film, double-effect evaporators at the pre-evaporation phase.
Additionally, in order to reduce emissions and improve energy efficiency of the recovery boiler, the final solids concentration of the black liquor will be raised up to 75% through an HPD forced-circulation enhanced high-solids concentrator (EHSC). Both the pre-evaporation and forced circulation concentration phases are integrated into the mill operations using the excess energy generated through the installation of the new turbine.
Source: Lesprom Network