We sell and supply biogas anaerobic
digesters. Biogas is a carbon-neutral
waste management solution, and allows you to do
your bit to help the planet and save on power
You can simply throw in any organic material into the
digester and it will provide you with biogas and perhaps more
importantly organic liquid
fertilizer. Biogas is renewable energy
and can be used as a Renewable Natural Gas (RNG)
alternative. Ideal for cooking gas and
hot water systems. You can even power a
generator for electricity or run a
motor vehicles similar to existing LPG/autogas
A home biogas solution is an outstanding
option for off-grid living, but we'd recommend
them for every a family house, villa, resort, backyard, hotel,
restaurant, fresh good grocery store, farm, smart home, smart
estate. We are confident residential, industrial or businesses
might be interested. It's basically FREE
energy, while helping the planet.
We offer various size hard design biogas digesters! Prior to
this we used a cost-effective soft design (similar to HomeBiogas.com),
but we don't recommand a soft design anymore - the membrane can tear, and the
support structure is weak and not suitable for Australian
conditions. The hard design solution is enclosed in a greenhouse
to maximize efficiency and reduce process (aka retention)
time. This design uses a stainless steel frame, sink and
outlet - instead of a plastic or known existant frame
like the various soft design soluitons out there - a hard design
ensures a long-lasting design, protected from the elements such
as weather and animals if used outdoors.
You can even use a biogas digester for human waste
management. Typically people use septic
tank which is similar to a biogas digester however
unfortunately not designed well to produce biogas and organic liquid
fertilizer. This is because a septic tank is low temperature and
not gas-tight. So basically a biogas digester can replace a
typical septic tank and should require much less maintenance
than a typical septic tank, if at all. Toilet paper is
made of organic material and breaks down in liquid
after a period of time so shouldn't be an issue. And the
urine will also be converted to biogas! Another
option is to use a underground gas-tight septic tank and connect it to a biogas
digester. This is called a two stage digester, where the
underground gas-tight septic
tank is doing pre-treatment. In this case, the
bottom layer (aka sludge) from the septic tank
is pumped into the biogas digester. So overall, the entire
system produces less sludge and more
biogas. Furthermore, less sludge means less
septic tank cleaning and maintenance.
We'd recommend the system is used outdoors for warm/hot
climate locations (e.g. Queensland and Darwin). For colder
climates (e.g. Tasmania) we recommend the system is used indoors
with the heater accessory we offer (installed within the
digester). For areas like NSW - either option will likely be
a mixture of gases, primarily consisting of methane aka
biomethane (50-80%), carbon dioxide (5-50%),
hydrogen (0-1%), hydrogen sulphide (0-3%), and oxygen (0-2%)
produced from organic materials such as
agricultural waste, manure, municipal waste, plant material,
sewage, green waste and food waste.
It should be noted that hydrogen sulphide has a rotten egg
smell, and exposure is particularly dangerous for two reasons:
concentrations of 800 ppm (even for just a short time) can be
fatal; a person can become desensitized to the smell of from
prolonged low-level exposure (meaning a person may inadvertently
become unaware of exposure to concentrations that could be
potentially hazardous). It is for these reasons the systems we
provide include a desulfurizer (aka scrubber) to remove
impurities (and therefore smell) such as hydrogen sulphide. This
scrubber contains iron oxide desulfurizer pellets.
It it interesting to note that any animal/human that eats
meat will have pathogens, which will increase digester
process (aka retention) time to kill the pathogens. In short - a
good biogas digester mimics a cows gut, so food waste, green
waste and manure from herbivore animals are likely the best
sources of feed for a biogas digester. All that said, meat and
fish products can be fed into the system with low retention time
and kill 99% of pathogens, when used in warm/hot climates or in
cold climates with internal digester heater.
Greenhouse-based Solution (Hard Design)
Ideal if you want a very robust design for long-term use. See
below accessory options such as biogas stove double burner,
1.5kW generator, and hot water system.
Hard Design Specifications
- Postage Weight: 130kg
- Dimensions: 1.95(L)x0.98(W)x1.65(H)m
- Volume: 3.4m³
- Bag max pressure: 30kPa
- Digester/Fermentation Volume: 1.7m³
- Gas Storage Volume: 1m³
- Biogas Production: 2m³/day or higher
- External Design: Greenhouse with Stainless Steel Frame/Sink/Outlet
- Features Built-in: Biogas Filter, 240V@50Hz 20W Booster Pump
Hard Design Maximum Treating Capacity
- Grass Clippings: 18kg/day
- Kitchen Food Waste: 25kg/day
- Rotting Vegetables: 65kg/day
- Chicken manure: 26kg/day
- Human manure: 32kg/day
- Pig manure: 45kg/day
- Cow/Horse manure: 60kg/day
NOTE: The organic material above can be either
single material or mixed materials.
- Output (depending on organic material and suitable temperatures):
- Organic Liquid Fertilizer: 80% of raw input!
- Biogas: 2m³/day or higher (i.e. about 4-6 hours/day of
cooking gas for one burner)
- Membrane Design: Anti-aging, Acid and Alkali Resistant,
Rodent Resistance, Fire Retardant Properties
- Minimum Ambient Temperature: 10℃
- Expansion Options: Yes - multiple systems can be connected
- Maintenance Level: Easy (DIY)
- Safety Level: Safe (no leaks, testers available if wanted)
- Install Level: Easy (DIY possible)
Accessory Options (AUD$, ex GST)
- $4005 - Biogas Generator (input biogas: 3.5m³/hr, output: 240Vac@50Hz 5kW)
- $3048 - Biogas Generator (input biogas: 2.1m³/hr, output: 240Vac@50Hz 3kW)
- $1954 - Biogas Generator (input biogas: 1.05m³/hr, output: 240Vac@50Hz 1.5kW)
- $1353 - IR-based Methane Leakage Tester
- $925 - Food Waste Shredder (input: 240Vac@50Hz, capacity: 20L)
- $425 - Sewage Pump (includes cutting feature)
- $255 - Biogas Hot Water System (input biogas: 1.7-2.6m³/hr, output: 6L/min, 25-500kPa, 60℃)
- $212 - Electric Heater installed within for cold climates (input: 240Vac@50Hz)
- $195 - Biogas Storage Bag (2m³)
- $76 - Biogas Stove Double Burner (input biogas: 0.45m³/hr per burner)
- $61 - Fermentation Power (3kg), if cow manure unavailable
- $52 - Biogas Stove Single Burner (input biogas: 0.45m³/hr)
- $28 - Lamp (input biogas: 0.07m³/hr)
Replacement parts (which are already included in the hard design
- $131 - Flow Meter
- $71 - Biogas Fittings
- $12 - Desulfurizer (aka scrubber) removes remove
impurities such as hydrogen sulphide
I have a compost - is the liquid fertilizer better?
Yes - it's organic and proven to provide better yield for
crops. You can think of a biogas digesters and a advanced compost
system. You can also throw meat and fish into the digester unlike a typical compost.
Better still - 80% of the input will converted to this organic
Can I use an existing LPG stove with biogas?
We'd recommend a biogas stove, however in theory you can mix
biogas with LPG, to use with a traditional LPG stove.
Can I use an existing petrol generator?
We'd recommend a biogas generator, however in theory you can
start the generator with petrol, then switch to biogas.
Can I use an existing LPG hot water system with biogas?
We'd recommend a biogas hot water system, however in theory you can mix
biogas with LPG, to use with an traditional LPG hot water system.
What size generator can I use?
The above greenhouse-based hard design solution can produce
enough biogas for the 1.5kW generator. Larger generators would
require a larger system or some other biogas source such as
Does the biogas hot water system water pressure match a
typical home LPG hot water system?
The above 3.4m³ provides about half the flow rate and half
the water pressure of a typical LPG hot water system. But if you
join two of these systems together it should achieve the flow rate
and water pressure of typical home. However this means more organic
material to feed the digester.
Can I grow plants to feed the system?
Yes - and plants are a renewable source. We'd recommend they are
shredded before putting into the digester for optimal performance
Can I compress biogas?
Yes - in theory you can use a compressor to compress biogas into
empty LPG bottles, however it's not something we don't offer at this
How do I start my biogas digester?
A biogas digester is best started with cow dung, which naturally
contains a mix of microorganisms necessary for the biogas production
process. If cow dung is not readily available, we can provide a
fermentation powder starter. This product is a
proprietary blend of microorganisms and enzymes. This blend often
includes various types of hydrolytic bacteria, acidogenic bacteria,
acetogenic bacteria, and methanogens, all of which play a crucial
role in the anaerobic digestion process that produces biogas.
Do larger options exist?
Yes - we do offer larger size systems, such as 15m³. However
you can join smaller systems together.
Distant Future Global Prediction vs Near Future Weather Prediction
Perhaps it's worth outlining why we can predict the distant global
future with more likelihood than prediction/control of the weather
over the next 7 days.
- Climate change is indeed a complex issue that has been the
subject of extensive research over the years. The current pace and
magnitude of changes, primarily driven by human activities, are of
considerable concern to the scientific community.
- While there have been instances of incorrect or misinterpreted
data, the consensus among climate scientists - based on a vast body of
research and diverse data sources - is that anthropogenic climate
change is a reality.
- The push towards renewable energy is about more than just
financial gain. It also involves reducing reliance on finite
resources, decreasing pollution, and attempting to mitigate the
impacts of climate change.
- The pollution resulting from the disposal of renewable energy
infrastructure is a significant concern that must be
addressed. Nonetheless, all forms of energy production have
environmental impacts, including the extraction, transportation, and
burning of fossil fuels.
- Personal experiences often reflect local conditions and may not
align with global trends. Climate change impacts vary widely from
place to place, as seen in the data from: https://sealevel.nasa.gov.
- Global warming is part of the broader issue of climate
change. The shift in terminology from 'global warming' to 'climate
change' was to better reflect the variety of changes and impacts
that are being observed, which include not only rising temperatures
but also shifts in rainfall patterns, more frequent and severe
weather events, and sea level rise, among others. More information
can be found at: https://climate.nasa.gov.
- The 2020 discovery of a continuous
record of Earth's climate history spanning 66 million years
provides valuable historical context for understanding
contemporary climate change. This extensive record underscores
that the natural climate variability driven by changes in Earth's
orbit around the sun, as revealed by this research, is
significantly smaller in magnitude than the projected future
warming due to greenhouse gas emissions. This finding highlights
the unprecedented nature of the current climate change crisis, as
human-induced global warming is occurring at a pace and intensity
that is unmatched in Earth's geological history. See https://scitechdaily.com/66-million-years-of-earths-climate-history-uncovered-puts-current-changes-in-context/
- Many of our insights into climate change have come from
observations made from the International Space Station, just one of
the many significant contributions of NASA.
- Weather prediction modeling is based on complex mathematical
systems, including chaos theory, which can make precise predictions
challenging due to the inherent unpredictability of certain natural
- "The Limits of Growth" reports use modeling based on aggregate
data, which can be more manageable to predict. These predictions have
been generally accurate, as seen in the 1972 report's alignment with
subsequent reports from 2002 and 2022. To learn more see:
- Different countries contribute to CO2 emissions at varying rates,
with Australia being one of the highest per capita contributors. The
complete list can be found at:
- Our society's consumption-based behaviors, coupled with limited
resources and an increasing population, are leading to significant
biodiversity loss. Everyone can contribute to addressing this issue,
and it's vital for our future generations.
- Understanding complex topics like climate change can be
challenging without a background in STEM fields. However, artificial
intelligence tools like ChatGPT (https://chat.openai.com) can help
facilitate learning and innovation.
- The pursuit of knowledge is a lifelong journey, and the more one
learns, the more one realizes there is to learn. This is particularly
true in the realm of STEM/STEAM fields.
- Population growth is a major challenge for our planet's future
sustainability. It's a factor that needs serious consideration
alongside climate change. In some ways, given the overpopulation
issue some could argue that free choice or opinions should be
restricted, however that is not conducive to open dialogue and
democracy. But it is true that when the population is fewer like
it was 200 years ago, free choice and opinions are a non issue in
terms of herd immunity. It's perhaps worth nothing the population
has increased 8x in the past 200 years alone, and we've been
modern humans (Homo sapiens) for 300,000 years, according to the
most recent archaeological evidence.
- All cultures and countries, have valuable perspectives to
offer. It's important to respect each other's viewpoints and engage in
open, respectful discussions.
In conclusion, remember the wisdom of the classical era such
as the Old Master (aka Laozi also
romanized as Lao Tzu) and his
ancient Chinese teachings of Tao Te
Ching: "No matter what you do
- that seed will always grow into the peach tree". In other
words - it's our
responsibility to care for our planet just as we would care for a
growing seed. Think Taoism/positivism
and perhaps consider the book "The Tao of
Physics" which in some ways links the ancient East
spirituality to the
present-day science of Quantum
Mechanics on amazing insights within the "Limits of Knowledge"
such as "Quantum Entanglement",
Double Slit Experiment". These two topics are widly excepted by the
scientific community as quantum phenomena, counter-intuitive, and
challenge our everyday understanding of how the world should
work based on our experiences at the macroscopic level - or in the
simple, yet profound, words -
"spooky" as said by Albert
Einstein. Perhaps worth adding the dialogue between science and spirituality is not
confined to the present. The inventor Nikola Tesla, in the late 19th
century, experimented with an electronic device called the "Spirit
Radio", an unconventional
device that, while not scientifically verified, reflects our
enduring fascination with the unknown and the unseen.
That said - "Once you have discared the impossible, what remains, however
improbable, must be the truth" ~ Sherlock Holmes by Arthur
Conan Doyle (Born 1859 Scotland, RIP Sussex 1930), and
also repeated by Dr Spock in Star Trek. I can't see this
aphorism not being true even this long after he said it. After
all, "Nothing is impossible, the word itself says I'm possible" ~
Audrey Hepburn (Born Belgium 1929 and RIP Switzerland 1993), and "Make it possible, remove the IM, that's the
obstacle" ~ Scott Froml (aka Kerser S.C.O.T. at age 26 in 2013
But most importantly - "Embrace and Enjoy Life! There is no point knowing anything, if you have never experienced
anything. If you have never experienced anything, you have never
lived. If you have not lived, you know everything. THINK ABOUT
IT!" ~ Luke Scott Cole (aka
BluEy at age 21 in 2002 South-West Sydney).
Take care, and may you live long and prosper!
To learn more about Luke Scott Cole, please have a good review of
these chief sources:
- Old Personal Home Page - https://www.lukecole.name
- Professional Social Media Account - https://www.linkedin.com/in/lukecole/
- 2017 Talk on "Robotics in Road Construction" at the Melbourne Convention
Centre, and AAPA/AFPA
- 2016 Nine News TV-first on "Cracking
a volunteers house wireless internet"