22 December, 2014

It has been successfully performed all task of the REC-POLYOLEFIN project, so it has been carried out the construction of an optimized recycling plant of polyolefin, finishing the project in August 2014. As summary, the tasks performed are described below:


Action 2: Requirements of products and equipment

During the implementation of Action 2, which concluded in December 2011, the following activities were successfully performed: study and identification of plastic waste from different waste management and collection centres and definition of technical requirements of polyolefin mixtures to be treated in the recycling pilot plant. Different tests were performed in the prototype drum with capacity of 200 kg/hour and Life Cycle Analysis of recycled LDPE was carried out in order to compare it with virgin LDPE.


Action 3: Pre-treatment of post-consumer polyolefin mixtures

Action 3 began in January 2012 and was concluded in September 2012. During the development of this action, a comprehensive study, analysis and evaluation of already existing techniques for treatment and conditioning of waste plastics were carried out in order to obtain a material input as homogenous and suitable as possible for the recycling demonstration line.


 Action 4: Design of thermal treatment prototype – Phase 1.

Action 4 ended in August 2013 and objectives set out in the project proposal were successfully achieved. Thus, during the development of this action, prototype equipment for thermal processing was designed and built, whereby the most appropriated thermal contraction of the post-consumer polyolefin mixture was achieved.


Action 5: Design of separation equipment – Phase 2

During Action 5 separation equipment based on pneumatic separation by air flow and on electrostatic separation was designed. After carrying out some small-scale tests the pneumatic separation system was finally chosen.


Action 6: Recycling tests in the new plant

Action 6 consisted of assembling and connecting the different elements in the recycling pilot line and subsequently carried out the corresponding tests by PHB-MOS with the thermal and pneumatic separation equipment, using real samples proceeding from different sources from Lurederra-SMSA.


Action 7: Final process of recycled polyolefin

The execution of the action 7 consisted of testing processing recycled polyolefin. On the one hand, Lurederra – SMSA tested extrusion blown with recycled PEBD and on the other hand, it has been tested extrusion profiles with lower value added plastics (HDPE and PP recycling).


Finally, it has been characterized the obtained products to meet their final properties.