MNcompostppt
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MNcompostppt Presentation Transcript

  • 1. SMALL SCALE COMPOSTING ON 1 ACRE OR LESS
    • Mike Nevin
    • Composting Animator at Foodshare Toronto
  • 2. A LITTLE BIT ABOUT MIKE...
    • MIKE’S FOOD SHARE TITLE IS COMPOST FACILITATOR WHICH MEANS HE IS SUPPOSED TO MAKE SURE THE COMPOSTING OF FOOD SCRAPS HAPPENS. MANY ARE SURPRISED TO LEARN THAT THE "P" IN HIS NAME STANDS FOR "ANYONE-CAN-LEARN-TO-COMPOST". AS HE USED TO SAY IN CRIMINOLOGY CLASS; "IT IS NOT RACKET SCIENCE." HE IS HAPPY TO TEACH ANYONE HOW.
    • AS LONG AS HE REMEMBERS, HE WAS INTERESTED IN WASTE REDUCTION AND WASTE ISSUES SO GETTING INTO COMPOSTING WAS NO STRETCH. LIVING AT BAIN CO-OP, HE WAS ABLE TO RUN SEVERAL THREE-BIN COMPOSTERS AND, HENCE, LEARN HOW TO PROBLEM SOLVE WITH COMPOST. HE HAS BEEN COMPOSTING AT BAIN FOR 20+ YEARS.
    • HE IS ALWAYS LEARNING AS MUCH AS HE CAN ABOUT SOILS AND SUSTAINABLE GARDENING. AT FOOD SHARE, MIKE AND VOLUNTEERS COMPOST UPWARDS OF TWO TONS PER MONTH OF FOOD SCRAPS AND FEED FS GARDENS AS WELL AS OTHER GARDENS WITH THE FINISHED COMPOST.
  • 3. B EGIN WITH THE END IN MIND ... COMPOST YOUR WASTE > BUILD YOUR SOIL WITH ORGANIC MATTER > INCREASE PRODUCTION OF HEALTHY FOOD
  • 4.
    • HEALTHY SOIL > HARNESSES THE (FREE) ENERGY OF THE SUN
    • HEALTHY PLANTS > CAN TAKE CARE OF THEMSELVES
    • HEALTHY PEOPLE > GOOD NUTRITION IS THE BASIS OF GOOD HEALTH
  • 5.  
  • 6. THE 5 FACTORS
          • FEEDSTOCK AND INPUTS
          • BULKING AGENTS
          • AIR
          • MOISTURE
          • TIME & LABOUR
  • 7. FACTOR 1: FEEDSTOCK AND INPUTS
    • DEFINITION OF INPUTS
    • “ CHOP, MIX AND BURY”
  • 8. PLASTICS 101
    • THE “BIODRADEABLE VS. COMPOSTABLE” DEBATE
  • 9. FACTOR 2: BULKING AGENTS
    • WHY DO YOU NEED BULKING AGENTS?
    • ADDS CARBON
    • SOAKS UP MOISTURE
    • IMPROVES AREATION
    • PROS & CONS FOR DIFFERENT MATERIALS
    • (WOOD SHAVING, WOOD CHIPS, SAWDUST, CORROGATED CARDBOARD, NEWSPAPER, OFFICE PAPER, EGG CARTONS, PAPER BAGS, PAPER TOWELS, LEAVES, TREE BARK, ETC)
  • 10. C:N RATIOS FOR HOT COMPOSTING TO WORK WELL, YOU NEED A BALANCE OF GREENS (NITROGEN) & BROWNS (CARBON) Photo credit : How to Make and Use Compost: The Ultimate Guide
  • 11. A C:N BALANCED, FRESHLY-LOADED BIN
  • 12. FACTOR 3: AIR
    • AEROBIC VS ANAEROBIC COMPOSTING
    • COMPOSTING IS LIKE SLOW COMBUSTION
    • BIN SIZE INFLUENCES HEAT RETENTION
    • IF BIN IS TOO BIG, YOU NEED MORE TURNING OR OTHER METHOD AERATION TO GET OXYGEN IN THERE.
        • IF BIN IS TOO SMALL, IT’S ALL SURFACE, NO
        • VOLUME.
    • HEAT IS LOST THROUGH THE SURFACE
    • HEAT IS GENERATED THROUGH THE VOLUME
  • 13. WOODEN BIN INTERIOR
  • 14. SUN-MAR COMPOSTERS
  • 15. PROS AND CONS OF MID-SCALE COMPOSTER TYPES
  • 16.
    • PHOTOSNYTHESIS EQUATION
    • WATER + CARBON DIOXIDE + ENERGY FROM SUNLIGHT =
    • OXYGEN + SUGARS
    • (WHICH ARE SOURCES OF ENERGY AND BUILDING BLOCKS OF PLANT STRUCTURE)
    • RESPIRATION EQUATION
    • SUGARS + OXYGEN =
    • CARBON DIOXIDE + WATER + ENERGY
    • (WHICH SHOWS UP IN COMPOST PILE AS HEAT)
  • 17. FACTOR 4: MOISTURE
    • IDEAL: NOT TOO WET, NOT TOO DRY
    • WHY IS MOISTURE ESSENTIAL?
    • BACTERIA NEED LIQUID MEDIUM TO LIVE AND PROSPER IN
    • MICROBIOLOGY & WORMS DON’T HAVE LUNGS, THEY NEED A MEDIUM TO EXCHANGE GASES AND NUTRIENTS
    • TOO DRY > BACTERIA SHUT DOWN
    • TOO WET > GOES ANAEROBIC, BAD SMELL
  • 18. FACTOR 5: TIME & LABOUR
    • Passive monitoring > managing waste...
    • “ it’ll happen when it happens”
    • Active monitoring > growing your own soil...
    • where you’re dealing with a constant supply of scraps, minimize the amount of organic waste to green bin, maximizing how much compost your produce.
  • 19. COMMON PROBLEMS & REMEDIES TOO WET TOO DRY NO HEAT TOO MUCH HEAT BAD SMELL ANTS FLIES OTHER PESTS
  • 20. RESOURCES
    • THE ECOLOGICAL GROWERS OF ONTARIO
    • NATIONAL FARMERS UNION
    • THE COMPOSTING COUNCIL OF CANADA
    • THE RODALE BOOK OF COMPOSTING
    • NEW YORK CITY WASTE MANAGEMENT SITE
    • COMPOST BREAKDOWN: A GUIDE TO MID-SIZED COMPOSTING SUCCESS
    • BIOCYCLES MAGAZINE
  • 21. OVERVIEW OF YOUR SYSTEM
    • 17 ACTIVE BINS
    • 5 RESTING BINS (FILLED WITH READY-TO- SCREEN COMPOST)
    • 2 BIG BINS FOR STORAGE OF FINISHED COMPOST
    • 2 BIG BARRELS FOR “OVERS”
    • BARRELS FOR COLLECTING WATER
    • SHED FOR STOCKPILING FOOD WHEN NO BIN IS OPEN
  • 22. SCREENING PROCESS 1. LOAD UP 2. SCREENED COMPOST PASSES THROUGH MESH 3. LEFT “OVERS” IN THE BASKET BECOME “STARTER” FOR A NEW BIN
  • 23. FINISHED COMPOST
  • 24. CHEMICAL DECOMPOSERS (BACTERIA AND FUNGI) AND PHYSICAL DECOMPOSERS ( MITES, NEMOTODES, SPRINGTAILS, RED WORDS, SOW BUGS)
  • 25.  
  • 26.