Presenter:  Sam Bridgman (SKM)

Presentation title:  Pulp and Paper Mill Solid Waste – closing the loop

The Pulp and Paper industry in New Zealand produces a range of wood-fibre based products for use within NZ and for export markets. Collectively the industry produced 2.36 million air dry tonnes (adt) of pulp, paper and paperboard product in 2012. At the same time, over 400,000 tonnes /year of solid waste was generated by this sector which was either recycled, recovered or landfilled. Over half (53%) of this waste was organic, 8% was inorganic and the remaining 39% was a mixture of both.     The main objective of this study was to explore sector wide waste minimisation opportunities using a techno-economic risk assessment approach. The long term aim is to support the industry in further improving the management of solid waste through waste to resource initiatives that would lower landfill disposal costs and associated risks.     The nature of the sector has meant unique challenges have been faced through each stage of the project which has involved the collation and categorisation of waste data, analysing overseas practices for relevancy to NZ and identifying and evaluating site and sector level responses to the waste management.    At a sector level it has been recognised that the beneficial (diversion from landfill) management of the waste may depend more on the use of the material (market demand) rather than the availability (market supply). Therefore the focus of the sector must be on collaboration with other industry groups to create a sustainable market rather than focussing on a particular technology solution.     The focus of this paper is to share the process and framework we adopted for this project. It will assist the waste sector by:    n providing an understanding of the key solid wastes from the Pulp and Paper Sector; and  n showcasing a process for solving national-scale issues created by solid waste from industrial sites.

Event: WasteMINZ Conference 2013

Date: Tuesday 22 October 2013