Nelson Pine Industries Limited

Control and monitoring

Control and Monitoring

Control and monitoring processes aim to minimise pollution output from the production process.

Furnaces: Between 70 and 80% of energy used on site is generated by recycling and burning wood waste. Wood waste is gathered from a variety of sources including bark from the chipping operation, sawdust, sander dust and board offcuts. The furnaces use dry fuel and high temperatures to ensure clean burning, and a multicyclone is used to clean the hot gas of ash.

Dust Control: Dust prevention is a significant factor in the upkeep of safe production operations.  To prevent dust or fibre escaping into unwanted spaces, specially-designed cyclones and baghouses are used for separating the fibre from transport air. Dust control systems are a vital element in meeting health and safety requirements, not only helping to reduce site emissions but to also protect employees.

Noise: NPIL is aware of the effects of noise pollution can have on the local community. To minimise noise, the chipping operation runs only during daytime. Equipment is housed in noise enclosures and process vents have noise attenuators or silencers to reduce fan noise. The site was designed in a way that would keep the immediate environment unchanged from the effects of day to day site activities. Night time noise levels are periodically monitored, using special noise monitoring and data logging equipment.

Formaldehyde: Formaldehyde is present in many everyday items including wood, foods, and even occurring naturally in the oxygen we breathe. Formaldehyde is also produced in the production of building materials and wood products, particularly GoldenEdge® MDF. Research carried out in conjunction with resin suppliers has resulted in significant reductions in formaldehyde levels of GoldenEdge® MDF. Production for special markets is made to low fuming levels similar to the formaldehyde levels found in natural wood products. Monitoring shows the level of formaldehyde from production processes is well below recommended levels and is often no different upwind or downwind of the plant. The prevailing wind disperses gases in a way which renders them harmless.

NPIL can produce GoldenEdge® MDF at E0, or SE0 standards, while all NelsonPine® LVL products are of a E0 standard. This means our products are environmentally certified and highly reputable in significantly reducing formaldehyde levels.

Monitoring: NPIL undertakes regular monitoring of its processes and the surrounding environment to ensure no detrimental impacts through the production process. The health of the estuary alongside the plant is monitored on a regular basis. Process vents and dryer cyclones are checked for emissions levels. Dust and process emission levels are tested downwind of the plant using special sampling equipment, and air bag filters are checked for their dust levels. NPIL has its own weather station to gather information on wind direction, temperature, humidity and rainfall.