1. “The-best-of-2-worlds philosophy: developing local dismantling and global infrastructure network for sustainable e-waste treatment in emerging economies”
Shweta Basu,

2. Best-of-2-worlds philosophy
Provides a network and pragmatic solution for e-waste treatment in emerging economies.
It seeks the technical and logistic integration of ‘best’ pre-processing in developing countries to manually dismantle e-waste and ‘best’ end-processing to treat hazardous and complex fractions in international state-of-art end-processing facilities.

4. Stages of e-waste treatment chain
Stage 0 (Collection)
Stage 1 (Toxic Removal)
Stage 2 (Pre-processing)
Stage 3 (End-processing)

5. Diversity of e-waste treatment chain: case study of gold recovery from computer

6. Comparative scenarios and evaluation methods

7. Results:

8. Economic distribution along treatment chain:
Pre processing profit= revenues from selling the liberated scrap – fixed and operational cost
End processing profit= revenues from the recycled materials – purchase cost of secondary scrap, fixed and operational.

9. Eco-efficiency scores under th Bo@W recycling approach:
The material composition of products has direct influence on its profitability and environmental impact occurred during the same treatment processes. Products containing substantial amounts of metals have higher eco-efficiency scores than products dominant in plastics or other low value materials.

10. Market prices of resources and labour costs:

11. Conclusion
Bo2W philosophy is novel to provide an alternative of conventional approaches adopted in e-waste management. It is more pragmatic and economic compared to the construction of a comprehensive recycling chain with all necessary pre-processing and en-processing facilities available locally.

12. Roadmap for suitable implementing regions:

13. Thank you