Conservation Agriculture
Riist - SRI
Cover Fodder Crops
Dieren- geiten- Veeteelt
Zonne Energie
Habitat- Stoven
Part 2Back To Part 1
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How do you create the exit valve?

We take the rigid washer and we place it over the male PVC adapter. We then place the tire inner tube seal over the washer so that the washer does not do harm to the polyethylene bag of the anaerobic methane digester. Then you introduce the male PVC adapter into the hole cut in the digester's bag. On the outside you then place the other inner tube seal, the other rigid washer, and the female PVC adapter that was previously attached to the PVC tubing and the PVC elbow of 1". Once the exit valve is placed, you can put the bag into the ditch and pass the ends of the bag through the buckets at each end of the ditch.

The next step is to set up the safety valve. To do this you must place a post to support it.

How do you set up the safety valve?

To set up the safety valve you must take the 1" T and insert inside a small piece of 1" PVC between 20 and 25 centimeters. This piece does not get glued within because it needs to be removed to replace the steel wool that goes inside every six months to a year. On the ends of the T we place the small pieces of PVC that are between 8 and 10 centimeters. These are glued into the T with PVC cement. We then place the larger PVC piece into the mouth of the 2-liter soda bottle with the T and the other PVC pieces attached. Here it is clear that the PVC tubing will maintain submerged in water up to these holes that create a seal of water about 5 centimeters deep.

This safety valve connects to the exit valve by means of the transparent plastic hose. Once the bag is installed in the ditch, and the ends are placed on the buckets, and the exit and safety valves are connected, the next step is to inflate the bag with the exhaust of a car, tractor, or motorcycle. To do this you need to tie up one end of the bag with the rest of the tire inner tube scraps, avoiding the escape of any smoke.

At the other end, tie the mouth of the bag around a garden hose that will funnel the smoke into the bag. The other end of the hose is then place over the exhaust pipe of the automobile. Once this connection is then sealed with the tying of more inner tube scraps, you turn on the engine until you completely fill the digester's bag. Once this is complete, the safety valve should start bubbling, signaling the reaching of the digester's maximum biogas capacity. Now take the garden hose to introduce water into the bag to the point where no gas can escape, creating a water seal.

Then, when no gas can escape, you open up the ends of the bag to be mounted in the buckets. On the end that corresponds to the anaerobic anaerobic methane digester's exit, you dig a hole through which to channel the material that has been digested for fifty days, after which this material can be used as organic fertilizer. From then on, you will feed the anaerobic methane digester every day with manure dissolved in water. Every bucket of manure should be mixed with four buckets of water, being completely dissolved before pouring the mixture into the digester.