Case Study: a large pulp & paper mill cuts effluent treatment capital costs by 70% with LSI

Large Pulp & Paper Mill - Customer Case Study

A large pulp & paper mill faced a unique operational challenge, with frequent downtime causing wild swings in effluent pH levels. To meet a new sewer permit, the mill initially planned a $6-7 million capital project for a new retention and treatment tank system. The vendor LSI - Logical Systems Inc was engaged to provide value-added options through front-end engineering and a custom solution.

LSI implemented a strategy that analyzed the sewer system as individual pH contributors instead of one combined stream. This led to a targeted pre-treatment approach for the toughest sources, combined with improvements to the existing pH system. LSI’s custom design-build solution saved the mill 70% of its planned capital expenditure, representing millions of dollars in savings. It also more than tripled the system's performance, reducing time outside of permit limits from 12 minutes per day to just 3 minutes.