The advance control and optimization system for Syktyvkar includes the following process areas: three continuous digesters, three brownstock washing lines, two oxygen delignification lines, and two ...

The Jay mill had two continuous Kamyr digesters, one for hardwood and one for softwood, according to Adriaan R. P. van Heiningen, a professor of chemical engineering at the University of Maine ...

What's an anaerobic digester? Chicago has one that mimics the inside of a cow's stomach and is helping divert thousands of tons of food waste form landfills.