Cellulose pulp production process that uses sodium hydroxide (NaOH) and sodium sulfide (Na 2 S) as reagents.
Published in Chapter:
Wood Waste Characterization and Reuse Possibilities
Eraldo Antonio Bonfatti Júnior (Universidade Federal do Paraná, Brazil), Thiago Campos Monteiro (Federal University of Paraná, Brazil), and Elaine Cristina Lengowski (Federal University of Mato Grosso, Brazil)
Copyright: © 2021
|Pages: 17
DOI: 10.4018/978-1-7998-4921-6.ch018
Abstract
Wood is the most versatile natural material. It can be used to obtain sawn wood, wood for civil construction, naval purpose, packaging, furniture, wood flooring, composites, bioenergy, pulp and paper. More recently, nanotechnology and the biorefinery processes create new possibilities for wood use; however, wood processing still generates a large amount of waste. Wood can be processed mechanically or chemically. The mechanical processing of wood has residues like sawdust, cuttings, and wood chips. From the chemical processing of wood, the main residue is black liquor.