Our 20th Biodigester Build

This build at Mike Rimoin’s student housing co-op in Seattle was Solar CITIES 20th biodigester build.

January 16, 2010

A modified Solar CITIES digester using HDPE reactor with solar heat exchanger as reactor and 55 gallon drum telescoping gas collectors. Starter material is elephant dung and manure from 27 other species of animal from the Woodland Park Zoo in Seattle courtesy of horticulturist David Selk and Dan Corum aka “Dr. Doo”.

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As a cold weather gas collector, we used a 55 gallon drum and a plastic barrel, ARTI style, but filled with clear water