HERAKLION2019 7th International Conference on Sustainable Solid - PowerPoint PPT Presentation

E-waste valorization by recovering valuable metals with microorganisms HERAKLION2019 7th International Conference on Sustainable Solid Waste Management E. Benzal, A. Cano, M. Solé, C. Lao, X. Gamisans, A.D. Dorado www.biometallum.com 7th International Conference on Sustainable Solid Waste Management

“ A biotechnological process For electronic waste managers and related companies, that allows to recover metals from obsolete electronic devices with greater value than the price obtained for the waste, not as the conventional processes that need to ” be centralized with large volumes, high energy consumption and environmental impact.

THE PROBLEM 30% 30% plastic plastic 30% 30% refractory refractory 11% 11% R R 40% 40% metals metals 3-5% 3-5% annua annua l l

THE SOLUTION < 10- 10- 20% 20% 0,3- 0,3- Cu Cu 5% 5% Cu Cu T=1200 T=1200 ºC ºC R ↑ R ↑ T=30ºC T=30ºC No R No R

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Mobile phone composition 7th International Conference on Sustainable Solid Waste 3 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Bioleaching Fe 2 O 2 + Fe 2 Cu Fe 3 Iron oxidation + 0 H + + by H 2 O microorganism Cementation of s bioleached Cu Cu 2 Cu Fe 2 Fe Cu + 0 solubilisation + 0 Fe 3 from PCB Cu 2 + + 7th International Conference on Sustainable Solid Waste 8 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Investigation of electronic waste bioleaching Flask Lab scale Pilot plant Flask Lab scale Pilot plant 7th International Conference on Sustainable Solid Waste 11 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Bioleaching process Biological Chemical reaction reaction Ac. ferrooxidans 1 2 step steps 7th International Conference on Sustainable Solid Waste 9 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work O x y g e n s a tu ra tio n (% ) Toxicity tests 100 80 60 40 20 Abiotic Day 0 Day 5 0 0 1000 2000 3000 Time (s) 7th International Conference on Sustainable Solid Waste 13 Management

E-waste valorisation by recovering valuable metals with microorganisms % R e la t iv e lo s s o f a c t iv it y Introduction Materials and methods Results and discussion Conclusions and Future work Toxicity assays by microrespirometries Nickel 100 80 60 40 20 0 0 4 8 12 16 20 24 28 32 36 40 44 48 Time (h) 0.0005M 0.05M 0.1M 0.3M 1M 1.5M 7th International Conference on Sustainable Solid Waste 15 Management

E-waste valorisation by recovering valuable metals with microorganisms % R e l a t iv e l o s s o f a c t iv i t y Introduction Materials and methods Results and discussion Conclusions and Future work Toxicity assays by microrespirometries Aluminium 100 80 60 40 20 0 0 4 8 12 16 20 24 28 32 36 40 44 48 Time (h) 0.001M 0.05M 0.1M 0.2M 0.35M 0.5M 7th International Conference on Sustainable Solid Waste 16 Management

E-waste valorisation by recovering valuable metals with microorganisms % R e l a t i v e l o s s o f a c t i v i t y Introduction Materials and methods Results and discussion Conclusions and Future work Toxicity assays by microrespirometries Copper 100 80 60 40 20 0 0 4 8 12 16 20 24 28 32 36 40 44 48 Time (h) 0.01M 0.05M 0.6M 0.8M 1.0M 1.2M 7th International Conference on Sustainable Solid Waste 14 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Toxicity assays by microrespirometries % R e la tiv e lo s s o f a c tiv ity Metal’s comparison 100 Ni - Bioleaching 80 concentration Ni - Natural tolerance Ni - Limit tolerance 60 Cu - Bioleaching concentration Cu - Natural tolerance 40 Cu - Limit tolerance Al - Bioleaching 20 concentration Al - Natural concentration 0 0 4 8 12 16 20 24 28 32 36 40 44 48 Time (h) 7th International Conference on Sustainable Solid Waste 17 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Toxicity assays by microrespirometries % R e la tiv e lo s s o f a c tiv ity Metal’s comparison 100 80 Ni - Natural tolerance 60 Cu - Natural tolerance 40 Al - Natural 20 concentration 0 0 4 8 12 16 20 24 28 32 36 40 44 48 Time (h) 7th International Conference on Sustainable Solid Waste 17 Management

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E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Bioleaching pilot plant 7th International Conference on Sustainable Solid Waste 19 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Copper recovery in batch and column reactors 100 Batch Column Column in 3 cycles 90 80 % Copper recovery 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 Time (h) 7th International Conference on Sustainable Solid Waste 18 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Bioleaching of electronic waste • Bioleaching process to recover copper from the electronic scrap is efgective , verifying the proof of concept. • Column reactor improve the metal extraction effjciency. • Automatic and continuous operation makes possible to recover 85% in less than 6 hours . • Ni , Al and Cu afgect biological activity, depending on the concentration as well as the time contact. 7th International Conference on Sustainable Solid Waste 20 Management

E-waste valorisation by recovering valuable metals with microorganisms Introduction Materials and methods Results and discussion Conclusions and Future work Aknowledgments This project has been co-fjnanced by the European Union through the European Regional Development Fund: 7th International Conference on Sustainable Solid Waste 21 Management

@toni_dorado www.biometallum.com Ivan Galera Laia Rosell 7th International Conference on Sustainable Solid Waste Management