Larry Tannenbaum

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since Feb 14, 2017
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Recent posts by Larry Tannenbaum

Well here's another random idea for reusing surplus shipping containers...retrofit them so that they are converted into an enclosed, aerated composting vessels (complete with a mixer) similar to those custom designed and custom made enclosed composting containers that were expensive and site specific (i.e. stationary).  These vessels convert organic wastes into compost in around 3 weeks vs an average of 3 months for typical windrow composting - with generating the odors and putrescent puddles common to those mega recycling facilities. And a container could be retrofitted with a couple of trips to Home Depot/Lowe's and a few clicks on eBay or Amazon.  It's efficient because it monitors conditions and then optimizes them through active aeration and periodic mixing of wastes.  Simplified, that would entail mounting an array of perforated pipes on the bottom of the container, which is the connected thru hoses and bulk head fittings to some squirrel fans which are in return  hooked into a form of variable resistor (to control fan speed) and this is in turn connected to relays from a STC-1000 digital PID temperature controller (which takes the reading of a thermocouple sensor). As for mixing the enclosed wastes, think pole auger mounted on guide rails (with a motor system, like a linear actuator to create a 2 axis movement). Again, this would be tied into a temperature/humidity PID.  Total cost of container, delivery charges, materials, control equipment...under $15,000. No fuss, no muss (whatever muss is) and your capable of recycling about 70-100 cubic yds every 3 weeks -food wastes, farm manure, etc.  If you're interested in getting fancier, mounted some PEX or copper tubing on the top panel to act as a heat exchanger and capture the compost heat.

My thought was that something like this could be used to take wastes from a city and dock it on a small pad on a farm, where it will take up a minuscule amount of land, provide a farmer with income from the disposal fees -- and provide recycling capacity without creating another waste land from taking virgin land to big one of those huge composting facilites. Sure, one site, even with 10 containers, is a drop in the bucket, but a network of mini sites would.

Perhaps it's time to think small.

My random thought of the day...oops it's early morning


Larry
7 years ago
Thanks Glenn, I didn't find it when I searched.
7 years ago
I've read about various adaptations for the rocket mass heater (such as its use as a water heater); but I haven't seen a discussion of combining a rocket mass heater with a biochar retort.  As the temperature with the barrel is certainly sufficient to pyrolzye wood, I was wondering whether an enclosed chamber of wood, either on top of the barrel or surrounding the barrel could be used as biochar retort. Naturally the enclosed wood chamber would require a vent/tubing outlet for the syngas/hydrocarbons/CO/H2O generated - which might theoretically either be fed back into the burn chamber or be used separately to heat water. I don't know if the heat of the pyrolyzing wood would impact the efficiency of the rocket mass heater, and wondering if anyone has had experience with this or tested designs to accomplish it.

It seems as if this might be a way of increasing the thermal output while producing biochar. Or this idea is stupid... and should be considered as my candidate for stupid the post of the month award.


If it's been discussed, and I lack the basic search skills that should be required to use the internet, my apologizes..... I am genetically stupid

Larry
7 years ago