A347 P6 Mind map Team 2 by WEE KI YI https://padlet.com/200014991/yc1tqjb63oh2fydr Made with a wish on a star en-us 2021-11-24 04:43:53 UTC 2026-01-17 23:51:31 UTC hello@padlet.com Process of anaerobic digestion zoebubbletea https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909842654 four key stages of anaerobic digestion :
  1. hydrolysis, 
  2. acidogenesis, 
  3. acetogenesis 
  4. methanogenesis.
]]> 2021-11-24 04:47:09 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909842654 food waste recycling 20023695_3 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909842934 2021-11-24 04:47:24 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909842934 microorganisms classification 20023695_3 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909843297 Classified into their energy source
Phototroph - Through light energy
Type of carbon source
  • CO2 → Photoautotroph
  • Organic compounds → Photoheterotroph
Chemotroph - Through chemical energy
Type of carbon source
  • CO2 → Chemoautotroph
  • Organic compounds → Chemoheterotroph 
]]> 2021-11-24 04:47:45 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909843297 factors 20023695_3 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909844316 pH
temperature
C/N ratio
retention time
organic loading rate]]> 2021-11-24 04:48:38 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909844316 composting & C/N ratio 20023695_3 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909844592 2021-11-24 04:48:53 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909844592 black soldier flies 20023695_3 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909845213 they breakdown green materials and household garbage (organic) and turn it into forms that are easier for common worms to digest, breaks down manure quickly
  • nutritional value is high
  • breaks down things quickly
  • cheap
  • easy to farm
]]> 2021-11-24 04:49:32 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909845213 Benefits of Food Waste Recycling zoebubbletea https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909880128
  • reduce methane emissions
  • Reduce carbon footprint 
  • prevent from pollution
    • ]]>     2021-11-24 05:21:33 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909880128     biologically treatable waste 20023695_3 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909882238

    ]]>     2021-11-24 05:23:34 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909882238     Optimal C/N ratio 200014991 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909885501 Generally C/N 30:1 but can vary based on material

    At a higher ratio, it results in insufficient nitrogen that would slow the growth of the microbes leading to the slow down of the composting process.

    At a lower ratio, it results in excessive nitrogen that would cause the release of ammonia gas --> unpleasant odour ]]>     2021-11-24 05:26:41 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909885501     Composting 200014991 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909890879 A method to recycle the resource from organic waste. Based on the natural process of decomposition of organics by bacteria and other microorganisms]]> 2021-11-24 05:31:53 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909890879 Why should we compost? 200014991 https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909894620 Reduce the impact of wasted food and other unwanted organic material e.g Horticulture waste 
    • Reduce the amount of organic waste decaying in a landfill --> reduced methane emission and pests
    • Creates fertilizers that can be used in soil revitalization and improve crop yield 
    • Reduce the need for chemical fertilizers
    ]]>     2021-11-24 05:35:37 UTC https://padlet.com/200014991/yc1tqjb63oh2fydr/wish/1909894620