ENSC 201 Lecture Notes - Lecture 16: Cubic Metre, Hemicellulose, Tonne
13 Apr 2017
School
Department
Course
Professor
Document Summary
Early pulp mills based on pumping conifers - soft woods. Pulp and paper industry in canada - 2001. Competition between other counties such as brazil because labour is cheaper wood is softer and easier to produce. Major component (rule in quebec - must use chips rather than logs) Composition varies with the species of wood pulped. Log driving * no longer allowed in canadian rivers. Total estimated water use (million m3/yr) 2 300 pulp mill is different rding to design. Total estimated water use (million m3/yr) 2 300. Estimated loss of organic material (t/y) 230 000. Series of tanks that allow you to transfer waste. Law requires chlorine disinfection tanks to kill bacteria and ecoli - sometimes a removal st required as well to remove excess chlorine. Less sophisticated than activated sludge, less costly to operate, but requires more land. Effectiveness of chemicals and eliminates toxicity al station is. The mercury (hg) issue: pulp mills as a source.
