Category Archives: Uncategorized
Field Trip to Columbia Blvd Treatment Plant Recap
I was very humbled by our visit to the Columbia Waste Treatment Plant in North East Portland. The plant manages the waste of 614,000 Portlanders which amounts to about 120 million gallons per day in the dry season and 300 million gallons per day in the wet season. 99% of the water coming in to [...]
Illustrating Waste Management Techniques & Options
I’m working on completing a full illustration of Portland’s waste treatment plant and how it works for a series of posters I’m making about the past, present and the very hopeful future for waste management. If you’re interested in non-cartesian representations of physical processes drop me a line, I need all the advice I can [...]
sensors off the grid
I’m working on a 3.6v lithium ion battery charger based on the LT3652. more later, I just like how it looks in CAD.
What Do People Do All Day? FIELD TRIPS!
Tomorrow’s field trip day here in the Cloacina Bubble. I am fulfilling a life long dream of mine, visiting a wastewater treatment center. After spending yesterday reading about Portland’s 140 acre wastewater treatment plant I can not wait to see this $13 million a year operation at work. Considering the disaster that is water borne [...]
2nd Composter Finished
Rodent Resistant Composter – More DIY How To Projects Our household has officially outgrown our gigantic composter. We’ve made some changes to the composter and shared it on Instructables. major changes: Simple wire cylinder separates inner compost chamber from outer ring of woodchips instead of a cylinder AND a wire basket. The wire cylinder with [...]
WTF Fire Marshall?
So imagine me in a beautiful old building built for casting, welding, and other heavy industrial processes telling the landlord that we’re looking for space for our design group which builds and designs prototypes out of plastic, concrete and wood. He says to me ”Oh . . . we mostly have start ups in the [...]
Speaking of Urinals… at Research Club, Tribute Gallery
Much thanks to Dustin Zemel! Mathew Lippencott from Research Club on Vimeo.
Somebody chewed through and stole 4 inches of my monitoring cable. I’m thinking its a bird because what other animal wants ribbon cable for its nest? Monitoring is out of commission for now
the internet of decomposers
I’ve just installed an Arduino-based temperature logger at five points in our compost pile, proving the obvious: it’s hotter on the sunny side and hottest in the middle. Details tomorrow, but check out these sweet dashboard widgets!
Thanks Again Canada! A Manure Composting Calculator
I found a great calculator this morning for determining the amount of carbon source material and water needed to create a good compost mix. The results are calculated based on the ideal C:N Ratio (Carbon, Nitrogen Ratio) of 30:1 (30 parts carbon to 1 part nitrogen). Most of the time no water needs to [...]
