The document discusses the concept of a sustainable landfill. It describes DMT Environmental Technology and their solutions for treating landfill gas, leachate, and producing clean water and energy. These include biological desulphurization of landfill gas using DMT-BioSulfurex and upgrading of biogas to natural gas using DMT-CarbO2rex. The sustainable landfill concept uses waste as the only input and produces clean water, energy, and fertilizer as outputs while reducing emissions by over 90%, making the landfill truly sustainable.

1. “ The sustainable landfill” “ Making waste green” R. Lems M.Sc. , R&D Manager DMT Environmental Technology rlems@dmt-et.nl

3. Odour Sludge BioSulfurex ® CarbO 2 rex ® DMT Odourex ® Clean water Clean air Biogas I-WOX ® MemBioRex ® Wastewater Air purification Bioreactor Digesting

4. Sustainable ?!

7. Landfill options

8. Biogas treatment Substance % Methane, CH 4 45-75 Carbon dioxide, CO 2 25-45 Carbon monoxide, CO 0-0,3 Nitrogen, N 2 1-15 Water, H 2 O Saturated Hydrogen sulfide, H 2 S 0,1-0,5 Oxygen, O 2 0.1-5

9. H 2 S + O 2 => H 2 SO 4 (acid production!) T=30C pH= 0.5-1.5 Biological desulphurization DMT-BioSulfurex ® No Chemical use!

10. Biogas in Scrubber 9bar Flash Vessel Drying Unit Stripper Water CO 2 production Treated Biogas: 98% CH 4 No Chemical use! Biogas upgrading DMT-CarbO 2 rex ®

11. Plant Examples Biogas upgrading DMT-CarbO 2 rex ®

12. Screen Bioreactor Ultra- filtration Nano filtration Reverse Osmoses Irrigation water Drinking water Leachate treatment DMT-MemBioRex ® 300-1,500 5-50 2,000-4,500 2,000-5,000 10,000-50,000 Leachate 0 TSS <0.5 P <25 NH 4 <150 Nt <125 COD Effluent NF

13. Leachate treatment DMT-MemBioRex ®

15. The sustainable Landfill

16. The sustainable Landfill 50ha 6.000-7.000Nm 3 /hr 100-125m 3 /hr Biogas 5.500-6.500Nm 3 /hr Natural gas 4.800-5.300Nm 3 /hr 300 trucks 15m 3 /day diesel 4.000-4.500 Nm 3 /hr Natural gas 3 Mw e and 3.5 Mw q (1000Nm 3 /hr) 30 ton sludge/day 100-125m 3 /hr 1.5Mwq 500Nm 3 /hr 250 kg/hr Fertilizer 90-100m 3 /hr

18. “ The sustainable landfill” “ Making waste green” R. Lems M.Sc. , R&D Manager DMT Environmental Technology rlems@dmt-et.nl