Ghostprint DIY Bio-Digester Blueprint

Why choose a Bio-Digester system you might ask?  The top proven reason is because it takes trash, your organic food waste and turns it it into Tree's via a great liquid NuTreents that then can be used in any hydroponic system such is the Bucket system we are using in our G3 Sanctuary that you can see example of in the picture below on the Table. 

Picture Number 1

This growing system is suitable with almost any table, sink, reused parts, barrels and order-able pieces! All, while recycling food waste into growing with NuTreents as well as cooking, heating and electricity generation with Biogas.

Picture Number 2

Read over the Shopping List carefully. Analyze what you may find locally before investing in the parts linked below. It will be more economically and environmentally friendly to purchase, recycled or refurbished materials.

Shopping List / Links

X

Qty

Description

Link

1

Metal Locking Lid 55 Gallon Drum

https://amzn.to/3ukPsyf

1

Food Grade 55 Gallon Drums

https://amzn.to/3sBothp

1

Large 2 In Uniseal

https://amzn.to/3cx6Fye

3

4 Feet PVC Pipe

https://amzn.to/3syGmgC

1(x4)

2 in 90 degree Elbows

https://amzn.to/3wpO7Ig

1

2 inch 3 way T PVC Fitting

https://amzn.to/3meoPbi

1

Sink Drain Fitting 

https://amzn.to/3cQ6rCg

1

Male Trap adaptor 

https://amzn.to/3ugiLSi

1

1 ½ in to 2 in pipe Adaptor 

https://amzn.to/3sP8NXK

1(x25)

Small UniSeals ½ inch PVC Pipe

https://amzn.to/3cCUhwN

1

Clear Chamber for Filter

https://amzn.to/3ukJflL

1

1 ½ in to 1 ¼ in Coupling 

https://amzn.to/3rNcUlR

1

1 ¼ in PVC Pipe 

https://amzn.to/39EvPJk

1

Organic Activated Charcoal 

https://amzn.to/2QGvqiT

1

5 Gallon Water Jug 

https://amzn.to/31DD5Rb

2

Pure Bleach

https://amzn.to/39uY8dj

1-2

Durable Air Mattress

https://amzn.to/3u6KYLh

1

Air Mattress Adaptor 

https://amzn.to/3wsjfXC

1

¾ in to ½ in PVC Adaptor 

https://amzn.to/2R7FgL5

1(x3+)

½ in PVC 3 way joint 

https://amzn.to/3mfTuVL

1

½ in PVC Shut off valve 

https://amzn.to/2QVchKa

1(x10)

½ in PVC 90 degree Elbow 

https://amzn.to/2PAoQu2

1

½ in PVC Pipe

https://amzn.to/39WUObd

1(x10)

½ In Threaded PVC Pipe Joint 

https://amzn.to/2PUsZsy

1(x4)

¼ in Hose Clamp Ring 

https://amzn.to/31I79va

1

¼ in Gas Tube

https://amzn.to/3sXtWyo

1

Female ¼ in to ½ in hose fitting

https://amzn.to/2R9weNL

1

Refrigerator compressor

https://amzn.to/2O6TUkt

1

Electrical Tape 

https://amzn.to/3rLgGvV

1

Gas Gauge 

https://amzn.to/3cRCQsu

1

Propane Tank Adaptor

https://amzn.to/3cRCQsu

3

High Strength Food Safe Sealant 

https://amzn.to/3rK0ag1

1-

Air Tank

https://amzn.to/39uAopv

1

Garbage Disposal

https://amzn.to/3fsaXc1

1

Sink

https://amzn.to/2PFHmRy

 

Tool List / Link

X

Qty

Description

Link

1

The Best Power Tools Kit

https://amzn.to/3fs13XK

1

All you Need Drill Bit Kit

https://amzn.to/3cA3x4D

1

Wire Stripping Tool 

https://amzn.to/2PRvZ9o

3 In Hole Cutter

https://amzn.to/3ghVagx

The first step is to purchase or repurpose the supplies and tools all listed / linked above. Identify supplies are food safety materials specifically, barrels, pvc, tubing and choking.

Picture Number 3

Part 1: The Barrels

Now that you have all the materials and tools needed you will want to gather the large Uniseals, 3 inch Hole Cutter sealant 2 inch pvc Pipes and all the 2 inch pvc joints. 

Drill the two holes like seen in  picture #1 then sand the edges. Make sure that the top hole is about 3 to 5 inches from the top of the barrel. This will ensure that only digestate (NuTreents) comes out of the barrel. (Spring down to Part two after the next picture to drill the last hole needed in the barrel before rinsing it out) After sanded rinse out the barrel pop in the UniSeals and add any organic lubricant you have to the inside of the uniseals where the pvc pipe will be inserted to make it easier to push in the 2 inch pvc pipes. Push the bottom 3 foot pipe all the way to the bottom of the barrel then pull it out about 3 to 5 inches. This will allow the food waste to flow freely out of the pipe. Push the top 1 foot pipe in about 3/4ths of the way.  

From the Bottom pvc pipe you will add a 90 degree joint then 1 foot of pipe, this will attach to the 1 ½ inch to 2 inch pipe adapter then attach the male trap adapter. From this point we switched the sink drain fitting than what you see in the picture to make it easier to install so the next part needed will be the new Sink Drain Fitting. This will easily bend to the sink and the garbage disposal so that you can install the sink at different heights and locations on your table. 

Lastly refer to picture #4 for this part to attach another 90 degree 2 in pipe fitting to the higher up pipe that is coming out of the biodigester barrel. A 3 in pvc pipe then followed by the T shape 2 inch pipe. Then attach a 3 inch pipe to the T both on top and on the side.Then another 90 degree elbow, with another 3 in pvc pipe with a final piece of 2 in pvc pipe stretching all the way to the digestate barrel. After connecting all the pieces make sure to thoroughly apply water tight sealant to all the joint and biodigester uniseals. 

Here is the final step in completing the barrel portion of the biodigester. Cut a small hole as close to the top of the Barrel as possible as seen on the left side of the picture #2 to fit the fish tank pump. It is easiest to drill a few holes in the barrel at the corners of the trace marking made for the fish tank pump and then jigsawing the rectangle out. As always sand the cut edges and wash out the barrel.

Picture Number 4

Part 2- The Biogas Filters

First drill a ¾ inch hole into the top of the barrel, it can be anywhere on the top, ideally as close to the middle, to collect all the gas as easily as possible, is best. Then sand the hole before taking the ½ in small Uniseal and popping it in. This will create a tight seal for the fish tank siphon tube to barely push into. Next fill the fish tank siphon with steel wool, activated charcoal followed by more steel wool as you can see above. Incase needed, add a small amount to a cotton T shirt to help make sure the charcoal does not fall out. Attach the 1 ½ inch to 1 ¼ inch coupling to the Fish siphon followed by about a foot long piece of 1 ¼ inch pvc pipe. 

For the next filter use the 1 ¼ inch hole cutter to drill a hole in the top side of the water jug. Pore in one jug of bleach and one jug of distilled water then insert the pvc pipe attached to the end of the first filter. Apply a good amount of sealant to the ½ inch threaded part of the threaded pvc joint and screw it into the cap of the water jug. Then apply a line of sealant all the way around the inside of the water jug cap and attach it to the water jug. Of course add a thick bead of sealant/adhesive to the joint between the 1 ¼ inch pvc pipe and the water jug. Lastly secure the siphon tube to the back of the sink or wherever you think best. 

Lastly for the filter part of this project, cut 2 inches of ½ inch pvc pipe. Attach this with a ½ inch 90 degree elbow to the threaded joint and then run a ½ inch pvc pipe all the way back to the entrance of the air mattress. Insert it into the ½ inch, 3 way fitting as seen below then take 1 in of the ½ inch Pvc pipe and attach it to another 90 degree elbow followed by another small short ½ in pvc piece.

Picture Number 5

Part 3- Storing The Biogas

The first stage of the storage starts with holding the Biogas in a small air mattress. This is the most economical and easy way to store the gas for short periods because it fits perfectly out of the way behind the digester tanks. 

Simple as it is, as seen in the picture(?), we took a piece of plywood, traced the air mattress onto it, and then cut it out with about 2 inches of extra room on the side and top. Then we clear coated the plywood on both sides twice to make sure it is water resistant and liquid nails the mattress onto it. (Side Note:)If I could do it again I would have taken a (Few pieces of duct tape, rolled them up and stuck them on the back as well because the liquid nails dries very slowly. The final step of this super simple process was to screw the plywood to the wall behind the barrels. 

In order to get the gas into the air mattress from the ½ in PVC we had to use the Air Mattress Adaptor hooked up to the ¾ in to ½ in PVC Adaptor. From that point we ran the third part of the PVC joint up and over the barrel. For prototype stage and deminsation purposes this worked great however we recommend putting the compressor by the bleach and water filled jug so that you can you less pvc, in our next model we will show how this can be done, maybe without pvc all together. 

Picture Number 6

The Final parts needed to complete this advanced yet easy and DIY friendly Biodigester are seen above. This includes 4 x ¼ inch tightening hose clamp rings, ¼ th inch gas hose, the two, ½ inch PVC threaded joint, ½ in shut off valve, ½ inch 90 degree elbow, ½ inch PVC pipe Female ¼ inch to ½ inch hose fitting, Refrigerator compressor, Gas Gauge, Propane Tank Adaptor, a propane tank or air tank with a propane tank nozzle attached, electrical tape, wire stripping tool and a power drill or flat head screwdriver. This will allow you to store your Biogas during the summer while it is not needed for heating and then burn it using any traditional propane powered device such as a heater or grill. 

 The First step in this final part is to attach a shut off valve to the ½ in PVC pipe as seen above then attach as many 90 degree elbows and ½ inch pvc pipes as needed to get it to where you have positioned your refrigerator compressor. Then attach the female ¼ inch to ½ inch hose fitting to a 6 inch piece of gas hose. Tighten the hose on with the clamp then slip on another clamp and attach the hose to the suction hose of the compressor. It should be the tube closest to the lables on the opposite side of the power outlet on the compressor. Make sure that all the joints are sealed well to ensure no gas is lost. Then take the rest of the gas hose, attach it to the compressor, slip two clamps onto it and then attach the propane tank adaptor to the other end of the hose. Once the hose is pushed as far into both fittings slip up the claps to each side and tighten just until snug. As a safety precaution and to see how filled your gas tanks are, attach a gas gauge between the tank and the new gas hose you created. This will tell you how much gas is in the tank. Lastly use the wire stipping tools to reconnect the wires that were clipped to detach the compressor from the fridge and wrap them with the electrical tape. 

Congratulations!!! You have now completed the most sustainable NuTreent creation and greenhouse heating systems that we know of. What will you grow with this system? Share your experience and questions with us at www.facebook.com/groups/TheG3CommUnity/ or email us at GrowingGuru@GhostPrint.Org

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