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- World’s Largest Single Ozone Generator for Paper and Pulp Bleaching, Andhra Pradesh, India
World’s Largest Single Ozone Generator for Paper and Pulp Bleaching, Andhra Pradesh, India
Overview
A well-established pulp and paper company wanted compliance with strict environmental regulations while achieving better pulp quality and significantly lower specific pulp production costs
Case study
With a Kappa index of 4.5 after Z, the new pulp reaches easily 89% ISO brightness while the total effluent volume is around 8 m3/bdt in the (Ze)(DP) line. The replacement ratio is 1 kg of ozone for 1.8-2 kg of pure ClO2 whereas costs per kg are very close to each other: ozone definitely induced significant savings. The client conducted its own physical tests and it appears, even with a slight drop in viscosity, that all mechanical properties were improved by the use of ozone!