Sustainable activities and cost reduction are key business drivers for pulp and paper industry. NALCO developed PARETO technology in 2006, and this technology has achieved many success of water and energy saving and improving productivity.
PARETO Optimizer is key part of this technology and it is designed by using CFD (Computational Fluid Dynamics) simulation. At the outlet of optimizer, the conical jet is discharged into process pipe and it makes complete mixing with process flow and chemicals. By using PARETO, water saving will be possible because process water can substitute for fresh water what is used for secondary dilution. And PARETO can save energy also, for example, improved polymer performance can help drainage, and steam consumption will be reduced on papermachine. And if mill use warm water for dilution water, using process water for dilution should eliminate energy of heating water.
This technology is installed all over the world especially for feeding retention aid. Recently it has been expanded to pulping process and wastewater treatment. Since NALCO renewed PARETO technology last year, I’d like to introduce it to Japanese pulp and paper industry.