L3+ Biomass availability from wood processing

Question 1

Forest residues form log harvesting and three thinning

Answer 1

• Branches and leaves
• Roots and stumps
• Small logs in tree thinning
• Top end of the logs

Cost for collection and transportation is the major issue to utilisation of forest residues

Question 2

Wood residues from wood processing

Answer 2

• Sawn timber
• Laminated veneer lumber (LVL)
• Medium density fibreboard (MDF)
• Forms and characteristics of the wood processing residues
• Quantity of the wood processing residues

Question 3

Sawmill residues

Answer 3

• Sawn timber or lumber is from log sawing
• Used for construction, flooring etc
• Can be sold in the forms or green, dry, chemically treated
• Chips, sawdust, and bark

Question 4

Laminated veneer lumber residues (LVL)

Answer 4

Bark in debarking

Green residues

• Cross cut in cut to length
• Veneer waste in peeling
• Veneer clip residue

Dry residues

• Veneer brakeage after drying
• Compose residue from random sheets
• Scarf residues
• Trim-off residues
• Sawdust in cutting to size

Question 5

Medium density fibreboard (MDF) grades

Answer 5

• Ultra-light
• Light
• Regular or standard
• Dense

Question 6

MDF residues

Answer 6

Bark : debarking 
Chip fines : Chipping and screening 
Chip fines: Chip washing
Trimoff and sawdust: Finishing 
Panel rejected and sampling: Finishing 
Sander dust: Finishing