1 / 28

Biological waste treatment at Lindum

Biological waste treatment at Lindum. Jan Petter Hammer Subject Manager Chemistry/Biology Presentation for Aquateam with Polish guests Lindum, 28. september 2009. Norway’s “Agenda 21”. Recycling of nutrients Local treatment favorized

hamilton-mack
Download Presentation

Biological waste treatment at Lindum

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Biological waste treatment at Lindum Jan Petter Hammer Subject Manager Chemistry/Biology Presentation for Aquateam with Polish guests Lindum, 28. september 2009

  2. Norway’s “Agenda 21” • Recycling of nutrients • Local treatment favorized • Nutrients are recycled to where the food is being produced

  3. Biological treatment • 1) Composting • Aerobic degradation • C6H12O6 + O2 CO2 + H2O • 2) biogas production • Anaerobic degradation • C6H12O6 3 CH4 + 3 CO2

  4. Composting methods at Lindum • Windrow composting • Matress composting • Reactor composting • Active large windrow composting • AGBAG-kompostering

  5. Important criteria • The structure needs to be shredded to the right size • The mixture must be able to drain moisture and be aerated • The mixture must have DM>30% • C/N-factor • Starting pH > 5 • Energy must be removed in the process • Optimal degradation at 50-55 ⁰C

  6. Process and quality control • Hygiene: TKB and Salmonella • Stability: SOUR test, ”rottegrad” • Analysisofnutrients • Declaration • Temperature • CO2, CH4 and O2 • DM • Odour • Energy development • Volume reduction

  7. Soil products at Lindum • Ecologial compost • Agricultural compost • Bulk soil mixtures • Bagged soil mixtures • Garden waste compost • Biological roof covers • Designed products for customers

  8. Sewage sludge treatment

  9. Sludge utilization Vikersund

  10. E 134 2005 Steinsholt 2006 Statens vegvesen

  11. Food waste composting Ecological

  12. From food waste To compost and soil

  13. The food waste comes from large kitchens and food shops…

  14. …. and from private households

  15. The food waste is shredded andmixed with bark and lime

  16. The mixture is inserted into the reactor composting facility…

  17. … where it is transported into separate bins….

  18. …. and the composting starts Air is forced through the compost mixture, and it is turned several times each day.

  19. Plastics and other reject materials are sifted from the compost and sent to energy recovery.

  20. After 10 days, the compost is taken out and put into Ag-Bags for maturing.

  21. Agbag ”sausages”

  22. The compost is monitored by sampling and analyses.

  23. Growth test in our lab

  24. Finished compost, ready for use

  25. Transport to ecological agriculture

  26. Some of the compost is used in Lindum’s own soil mixtures

  27. ….and the product is bagged and sold in garden shops, super markets – and at Lindum

More Related