SPL Recycling - Part 1

June 2015 - May 2016

Background
Spent pot lining (SPL) is partly recycled today, the part that is not recycled is landfilled. This we like to change.

The project is in two parts;
 PART 1: Mapping of methods with literature study (identification of organizations and companies) and feasibility evaluation.

Scope
  • Find the best way to recycle SPL for the AMS plants. 
  • Get a good overview of what is being done and what is in the pipelines for future use of SPL.
  • What are the "products" of the processes, for what and by whom are the "products" used. 
  • Advantages and disadvantages with each method. 
  • What fits the Nordic plants the best.
PART 2: In-depth study of chosen methods, with mass flow analysis listing all inputs and outputs, along with environmental impact.
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Project lead:
Aage Heie, Phd. from COWI

 He has worked with research, education and advisory services within solid waste management since 1975.

He has worked on several projects on SPL since about 1985, and the latest was in 2010, a survey of the practice at the Hydro smelters, laws and regulations regarding transport, export and treatment of SPL and evaluation of sorting possibilities.

Project team:
Evan Nybakke - Hydro Aluminium
Pia _Segtnan - Alcoa Aluminium
Marius Johansen - COWI
Kristin Sigurjonsdottir - AMS Aluminium