Importance of safe recycling of animal and human excreta
•
0 j'aime•453 vues
Presentation by Björn Vinnerås, SLU, 2020-11-25
Recommandé
Recommandé
Contenu connexe
Tendances
Tendances (18)
Similaire à Importance of safe recycling of animal and human excreta
Similaire à Importance of safe recycling of animal and human excreta (20)
Plus de SIANI
Plus de SIANI (20)
Dernier
Dernier (20)
Importance of safe recycling of animal and human excreta
- 1. Swedish University of Agricultural Sciences Importance of safe recycling of animal and human excreta Björn Vinnerås Professor Environmental Engineering
- 2. Pathogens to the environment Current treatment — Dilution — Distance — Time Minimise direct contact — Landfilling — Wastewater system Linear system - efficient
- 3. Effect of linear system Water excellent solvent & transporter Environmental pollution — Pathogens — Nutrients — Debris Treatment is required
- 4. Create distance Avoid environmental pollution — Collection — Treatment — Dilution/disposal
- 5. Create distance Avoid environmental pollution — Collection — Production — Re-use Circular economy possible driver Source separation
- 6. Value in resources Water — Clean water! Plant nutrients — 1kg N < €1 2kg Urea >200kg biofertiliser — 1kg P < €3 7 kg Super phosphate > 1,000kg biofertiliser Other products — Protein — Lipids
- 7. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and source separation Look at end user demand Avoid polluting processSafe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 8. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and separate at source Look at end user demand Avoid polluting processSafe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 9. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and source separation Look at end user demand Avoid polluting processSafe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 10. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and source separation Look at end user demand Avoid polluting process remove pathogens Safe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 11. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and source separation Look at end user demand Avoid polluting process remove pathogens Safe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 12. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and source separation Look at end user demand Avoid polluting process remove pathogens Safe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 13. Closing the loop Collection Treatment Reuse CONTROLLED COLLECTION POTENTIAL POLLUTANT SAFE PROCESS RESOURCE IDENTIFICATION Identify the flows and potential pollutants Decrease dilution and source separation Look at end user demand Avoid polluting process remove pathogens Safe process What material can the user utilise USER FOCUS Quality of source, process and product QUALITY ASSURANCE Utilise the resources not a disposal action SAFE USE
- 14. Conclusion Closing the loop Protect — Human health — Animal health — Environmental health