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Rotating Drum Composter (community-scale, open-source design!) 

Agroecological Systems
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Free, open-source community-scale composter design.
The Compost for Good team designed and built a commercial-scale, rotating drum composter, capable of processing all of the unsorted food waste. This composter was built for approximately $15,000 in material cost. Similar-sized composters purchased on the open market range anywhere from $40,000 to $150,000. Compost for Good provides designs so that others may build their own composter, save money, keep food waste out of landfills, and generate a valuable product for use or sale.
This composter was sized to process about 35,000 pounds of unsorted food waste per year. This is roughly the amount of waste that a community of 250 generates through the course of a year.
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Check out their website and RU-vid channel for more info:
www.adkaction....
/ @compostforgood3099
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We work on possibly the highest elevation farm and garden in New York, at Camp Treetops & North Country School. It’s a 220-acre educational farm/school/camp in the chilly High Peaks Region of the Adirondack Mountains in upstate New York, USDA Zone 4a.
The purpose of this work is to demonstrate a variety of food production systems and engage the community in sustainable & ethical land management. It is intended to provide food as well as interdisciplinary educational opportunities for people of all ages & backgrounds.
People of all ages and backgrounds reside on campus and participate in farming and gardening activities as part of their education. We hope to create more productive outdoor learning spaces and opportunities to demonstrate ideas such as agroecology, permaculture, and sustainable food production.
Some of the work we want to demonstrate are so-called “alternative” or “non-conventional” agricultural practices. These include disciplines such as agroecology (agriculture that mimics natural ecological systems), permaculture (sustainable & self-sufficient design), regenerative agriculture (conservation approach that focuses on topsoil regeneration, biodiversity, improving water cycle, biosequestration, & mitigating climate change), agroforestry & silvopasture (integration of trees & shrubs with animals), organic agriculture (growing & processing food without the use of synthetic fertilizers & pesticides), and food sovereignty (the right to healthy & culturally appropriate food produced through ecologically sound & sustainable methods), among others.
This RU-vid channel and these videos are for educational purposes and for my own personal documentation of various projects.

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6 сен 2024

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Комментарии : 51   
@onegrapefruitlover
@onegrapefruitlover Месяц назад
I absolutely love this. Thank you for showing it and making it available open-source.
@AgroecologicalSystems
@AgroecologicalSystems Месяц назад
@@onegrapefruitlover glad you enjoyed!
@kil2250
@kil2250 2 года назад
Soo cool! Only thing id do different is wear a mask when shoveling.
@AgroecologicalSystems
@AgroecologicalSystems 2 года назад
Yea, I agree.. not sure you’d want to inhale those gasses / dust particles regularly.
@not.likely
@not.likely 5 месяцев назад
Nice set up
@AgroecologicalSystems
@AgroecologicalSystems 5 месяцев назад
Thanks!
@ainabearfarm8075
@ainabearfarm8075 2 года назад
Very cool to see in action!
@lukestevenson7475
@lukestevenson7475 Месяц назад
Very interesting and inspiring. Thank you for sharing!
@AgroecologicalSystems
@AgroecologicalSystems Месяц назад
Glad you enjoyed!
@camus83489
@camus83489 10 месяцев назад
the pre mixing and after sifting still seems like a lot of work.
@AgroecologicalSystems
@AgroecologicalSystems 10 месяцев назад
Yea it is… I think those things could be relatively easily engineered into the system, and other tweaks to make it easier to load / unload.
@darceyweimer3171
@darceyweimer3171 9 месяцев назад
Pretty sweet..👍👍👏👏
@AgroecologicalSystems
@AgroecologicalSystems 9 месяцев назад
I think so too!
@trashbandies4905
@trashbandies4905 2 года назад
Very cool! Though it seems like they'd be losing out on some fungi/microbes if they are turning the compost too frequently
@AgroecologicalSystems
@AgroecologicalSystems Год назад
True. I noticed the compost starts to smell very rich and mushroom-like when mixed with some worm castings and let to sit for a few days. Interesting to think about the different phases of microbial communities within the compost.
@mikemorton954
@mikemorton954 2 года назад
Could you use a clean cement mixer to speed up the initial mixing of the food scraps and the hard wood pellets?
@AgroecologicalSystems
@AgroecologicalSystems Год назад
Yea that could work. Others pointed out the rotating drum itself might be enough to mix the food scraps and pellets.
@mikemorton954
@mikemorton954 Год назад
@@AgroecologicalSystems Sounds like an experiment is in order. 😁
@OFM1209
@OFM1209 9 месяцев назад
Question: wouldn’t you want the chunks in the compost to create pockets for air?
@AgroecologicalSystems
@AgroecologicalSystems 8 месяцев назад
Makes sense to me, I think sometimes big pieces come out half decomposed so chopping them beforehand helps. I think also because it’s being rotated often the material is well aerated.
@user-vl9oi4fb5r
@user-vl9oi4fb5r Год назад
Does it have a "threaded" shape? So che material "advance"?
@AgroecologicalSystems
@AgroecologicalSystems Год назад
No but that would be cool. It is ribbed but not in a spiral way like threads. The whole thing is on a very slight slope which is what makes the material advance slowly.
@saave47
@saave47 8 месяцев назад
👍👍👍👍👍
@kenp8991
@kenp8991 4 месяца назад
Are there slats inside the culvert angled to help move the compost closer to the other end or is it angled slightly lowered at the finished end to help the compost keep moving down as it’s turned?
@AgroecologicalSystems
@AgroecologicalSystems 4 месяца назад
It is angled slightly, I think only a few percent. I think that’s one of the main factors in how long it takes the material to pass through and can be adjusted slightly.
@kenp8991
@kenp8991 4 месяца назад
@@AgroecologicalSystems how much would you think it weighs when it is full with materials? Thinking about building a set up similar to this and wondering if it would be possible to rotate it with a hand winch set up or do you think it needs an electric motor set up like yours?
@AgroecologicalSystems
@AgroecologicalSystems 4 месяца назад
@@kenp8991 not sure, I’d say it’s at least a ton. But I think a hand winch could work, maybe with the right gear ratio.
@reformedguy777
@reformedguy777 2 года назад
What did this cost to construct (and/or purchase), including the building?
@AgroecologicalSystems
@AgroecologicalSystems 2 года назад
I know the cost of making the composter was $15k. I think the whole building would have been quite a bit more, it also houses the water treatment facility, aeroponics lab, metal shop and electric tractor. I’ll see if I can get a more precise figure.
@korganrivera4659
@korganrivera4659 2 года назад
Did you guys build this?
@AgroecologicalSystems
@AgroecologicalSystems 2 года назад
Yes! Not me personally, but members of our community designed and built it.
@korganrivera4659
@korganrivera4659 2 года назад
@@AgroecologicalSystems Awesome! Assuming you sell the compost, how long would it take to pay off the $15,000 initial cost?
@AgroecologicalSystems
@AgroecologicalSystems 2 года назад
@@korganrivera4659 good question, I think if you could get around $25 per cubic yard, it would take 600 cubic yards to pay it off. I’m not sure exactly the volume that we’re producing but we have easily created that much in the past 2-3 years.
@tyronebailey6643
@tyronebailey6643 4 месяца назад
Where can I buy a composter like that
@AgroecologicalSystems
@AgroecologicalSystems 4 месяца назад
I’m not sure about buying one but the Compost For Good website in the description has free open-source plans for building one like in the video.
@nonejaeuk
@nonejaeuk 8 месяцев назад
hello, i started make compost these days. I have a question. After you put food scrap into a drum composter, how many day it takes to making compost?
@AgroecologicalSystems
@AgroecologicalSystems 8 месяцев назад
For this one I think it's about 3-4 weeks for it to make it through.
@aventurasenelsalvador1750
@aventurasenelsalvador1750 11 месяцев назад
Hello, why do you need tyhe wood pellets ?
@AgroecologicalSystems
@AgroecologicalSystems 11 месяцев назад
With all that moist, nitrogen-rich food waste, there needs to be some dry, high carbon material to help encourage the thermophilic bacteria. People use dry leaves, shredded newspaper, or other carbon rich materials to achieve the right ratio between nitrogen and carbon. We’ve experimented with used paper towels but they sorta clump together and it didn’t work right. With the pellets it comes out great, but it’s an external input that raises the cost and environmental impact of the system. Our pellets are locally made from sustainable tree farms so it’s not too bad. But ideally it would be some kind of diverted waste, to make use of something that would otherwise be landfill.
@aventurasenelsalvador1750
@aventurasenelsalvador1750 11 месяцев назад
Understood thank you, I asked in my area wood pellets are not found easily
@lucianofrizzo507
@lucianofrizzo507 7 месяцев назад
​@@AgroecologicalSystems I live in a zone which is pretty much like a desert; do you think it would work if I add just soil? I mean, the soil from here tends to absorb a lot of wet naturally
@AgroecologicalSystems
@AgroecologicalSystems 6 месяцев назад
@@lucianofrizzo507 might work to help absorb the moisture somewhat, but you also want to get the right ratio of carbon to nitrogen.
@christaylor9095
@christaylor9095 4 месяца назад
Middle Earth Composting?
@AgroecologicalSystems
@AgroecologicalSystems 4 месяца назад
Hehe yea silly font choice.
@christaylor9095
@christaylor9095 4 месяца назад
@@AgroecologicalSystems lean into it! Make a shire.
@rldoyle5705
@rldoyle5705 9 месяцев назад
Wait tell you hit about 55 yr you will wish you would have bought a tractor with a LOADER!
@AgroecologicalSystems
@AgroecologicalSystems 9 месяцев назад
Definitely. Would be nice to be able to load this one that way because it’s still a good amount of work.
@frankytrevor7
@frankytrevor7 Год назад
this isn't eco, too much use of electricity
@AgroecologicalSystems
@AgroecologicalSystems Год назад
A lot of which comes from hydro and solar but yea, there are always ways to improve. It’s also requires a minuscule amount of electrify to rotate the drum.. Many people rely on tractors to turn their piles so it at least cuts out those emissions. This method also reduces off-gassing and sequesters more carbon into the compost compared to open piles.
@frankytrevor7
@frankytrevor7 Год назад
@@AgroecologicalSystems people all over the world, like me has been doing it without machinery!
@mikeypc3592
@mikeypc3592 9 месяцев назад
​@@frankytrevor7great let's see your video so we can all learn something.
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