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MIT20_020S09_prj21_trsh_3id

MIT20_020S09_prj21_trsh_3id - Team T 3 – Trash to...

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Unformatted text preview: Team T 3 – Trash to Treasure Anonymous students SJ, CL, AS and mentor Julie Norville Problems with trash • 251 million tons of solid waste generated in 2006 (US) • 3091 active landfills in the US. Over 10k inactive • 82 percent of landfills have leaked • Every square mile of ocean has 46,000 floating pieces of trash 3 Ideas O verview>>Goals>>Impact>>Knowns>>Competitors Compost Acceleration O verview > >Goals>>Impact>>Knowns>>Competitors O verview > >Goals>>Impact>>Knowns>>Competitors Overview • Naturally takes a year • Bacteria operate within different temperature zones 60 ▫ 0-40°C – mesophilic topsoil 50 bacteria 40 30 ▫ 40-55 °C – thermophilic 20 bacteria ~ similar to hot- 10 springs ▫ Actinomycetes Dirt smell Image by MIT OpenCourseWare, after Cornell Waste Management Institute Compost temperature Time Breaks down complex organics Temp ( O C) Goal O verview>> G oals >>Impact>>Knowns>>Competitors • Use microbes to accelerate the decomposition process ▫ Reduction of cycling stages ▫ Temperature tolerance increase ▫ Metabolic engineering ▫ Systems design, tuning and control Compost Acceleration O verview>>Goals>> I mpact >>Knowns>>Competitors Challenge Importance Solution Impact • Limited composting today • Global Impact • Landfills continue to grow ▫ Eliminate waste in landfills ▫ Locks up potential ▫ More recycling resources ▫ Possibility of converting waste to energy ▫ Increase soil nutrients Knowns Unknowns O verview>>Goals>>Impact>> K nowns >>Competitors Compost Acceleration • Soil bacteria already characterized • Metabolic pathways • Public understands basic composting • Bacterial regulation • Cost • Maximum rate of decomposition • Technology acceptance • Product usage, disposal & distribution Competing Technologies...
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MIT20_020S09_prj21_trsh_3id - Team T 3 – Trash to...

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