The Bag Digester
was the absolute low cost model that was sourced from the net.
However, when assembling, the following problems came to light
forcing it's abandonment in favour of the Drum Digester:
Monkeys are already on the job and now have to provide a
shelter. Just tooled up from Chennai -
Plastic welder consisting of a hot air gun and hdpe welding rods and other accessories to fabricate the Scrubber (Water + Activated Carbon + Steel wool) and other fittings. It seems that we have to use HDPE pipes instead of the PVC now used for the plastic welding to work. Will cross that bridge later.
Storage of the gas will be in Tire Tubes currently hung on a tree branch linked to the Digesters using a tube.
Rejigged the whole set of digesters and obtained a nice blue flame. It is now based on a new fully vertical design.
Reconstructed Vertical Digesters are now in place and the Truck Tyre Tubes get filled overnight.
The gas collected was tested out in an improvised burner (less air mixture since low pressure) and sweet payasam dish was cooked on it and offered to Lord Varasiddhi Vinayagar on the premises.
Page will be updated as work progresses.
References: 1, 2 (pdf), 3 (pdf)