Nelson Pine Industries Limited

LVL and the Environment

The production process of NelsonPine® LVL is environmentally friendly. Production creates few emissions and complies with NPIL’s air discharge consent. The 20-megawatt energy plant recycles and burns wood waste for fuel. The veneer drier emissions are contained and fed into the furnace, providing the air needed for combustion and removing any volatile organic compounds generated in the veneer drier.

Water use: The hot water baths where the logs are soaked have increased water use by only about 10%, with little increase in effluent load, as the logs soak up water. The log conditioning baths are to be cleaned out twice a year, but the effluent can be processed through existing on-site treatment systems.

Lamination: The press used to laminate the veneers is operated at a significantly lower temperature than the MDF presses. Glue is spread over the veneer and heated by microwave in a 1.2m wide microwave oven, with LVL moving through it continuously. This lower temperature significantly reduces emissions.

Resin & Recycling: The Aica plant is conveniently sited adjacent to NPIL. A pipeline from Aica carries phenolic resin glue to the LVL plant. This low emission resin is used in the pressing capabilities in the production process. The washdown water is pumped back to Aica and recycled as ‘make up water’ in resin making.