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Batch-Bin Composting Systems
on the Appalachian Trail
•
Exit Strategies Conference
July 30, 2010
Hawk Metheny
Appalachian ...
The Appalachian Trail
• 2,179 miles long through 14 states
• Designated a National Scenic Trail by the 1968 National
Sceni...
14 States
Six NPS units
Eight National Forests
History of Composting on the A.T.
• Batch-Bin composting systems were developed by AMC on the A.T.
in the White Mountains ...
B-T-B overview
Conditions necessary for
effective composting
• Oxygen
• Heat
• Absorption
• Dedicated operator
• Time
• * ...
Hardwood Bark
acquired from local lumber mill
50 lb. bags
~12 new bags per compost run
16-40 bags per site/per season
Bell-Jet Ranger
800 lb. external load capacity
(16) 50lb. bags
Essential tools
Urine collection barrel
Pros and Cons
+
+ Highly effective pathogen
mortality-- over >99.99%
reduction
+ Inert, soil-like end product
+ Inoffensiv...
More information
Backcountry Sanitation Manual
www.appalachiantrail.org
hmetheny@appalachiantrail.org
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
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Hawk Metheny - Batch-bin composting systems on the Appalachian Trail

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Hawk Metheny - Batch-bin composting systems on the Appalachian Trail
Appalachian Trail Conservancy
Appalachian Mountain Club
Exit Strategies Conference, 2010, Sustainable Summits Initiative

Published in: Environment
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Hawk Metheny - Batch-bin composting systems on the Appalachian Trail

  1. 1. Batch-Bin Composting Systems on the Appalachian Trail • Exit Strategies Conference July 30, 2010 Hawk Metheny Appalachian Trail Conservancy Appalachian Mountain Club
  2. 2. The Appalachian Trail • 2,179 miles long through 14 states • Designated a National Scenic Trail by the 1968 National Scenic Trails Act. A unit of the National Park System. • Foot travel only • ~2 million visitors per year • Maintained by the Cooperative Management System . Federal and state agencies/non-profit/volunteers • 30 Trail Clubs • ~270 designated overnight sites—each with a toilet!
  3. 3. 14 States
  4. 4. Six NPS units
  5. 5. Eight National Forests
  6. 6. History of Composting on the A.T. • Batch-Bin composting systems were developed by AMC on the A.T. in the White Mountains in the mid-1970’s in response to a sharp increase in visitation at remote backcountry campsites. Previous waste management systems were pit toilets, Clivus, Soltran, or airlifting out of waste. • Earlier systems collected both urine and feces in the same container —required significantly more bark mulch to absorb liquids and properly compost sewage. • “Beyond-The-Bin (B-T-B) system developed in 1995 with 2 prototypes. Liquid separation is fundamental benefit. Full upgrade by 1998 to 12 systems.
  7. 7. B-T-B overview Conditions necessary for effective composting • Oxygen • Heat • Absorption • Dedicated operator • Time • * Hardwood Bark*
  8. 8. Hardwood Bark acquired from local lumber mill
  9. 9. 50 lb. bags ~12 new bags per compost run 16-40 bags per site/per season
  10. 10. Bell-Jet Ranger 800 lb. external load capacity (16) 50lb. bags
  11. 11. Essential tools
  12. 12. Urine collection barrel
  13. 13. Pros and Cons + + Highly effective pathogen mortality-- over >99.99% reduction + Inert, soil-like end product + Inoffensive outhouse odor +Suitable for high use areas capable of processing substantial volume in one season +Visitor education and stewardship opportunity + Relatively low tech - - External mixing agent required - Dedicated personnel - Moderate amount of infrastructure - Moderate initial upfront cost
  14. 14. More information Backcountry Sanitation Manual www.appalachiantrail.org hmetheny@appalachiantrail.org

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