Pictures of Grow Dryland desert tree watering device for plant watering, drought watering, desert tree starting, green wall watering, desert watering, tree irrigation, Dryland farming, Dryland irrigation and Dryland watering.
Grow Dryland supports starting trees in areas where seedlings would normally die of thirst. When combined with our full planting system Grow Dryland can support growing tree species in the deep desert which would normally be unable to survive at that location and it can do this without pumping groundwater and without water delivery.
Our Solar powered Grow Dryland extracts water from the air which is delivered directly to the seedlings roots and can keep the seedling alive in locations where they would normally die from dehydration. The tree uses this water as it grows deeper roots that can allow it access soil moisture deeper underground and eventually survive without auxiliary water.
Grow Dryland is ideal if you want to start trees in areas where trees can survive once they are large enough but the seedlings would die from dehydration before their roots can reach the deeper moist soil. When combined with our larger planting system Grow Dryland can even support trees in dry and barren desert locations.
A2WH technology can reliably produce water in areas where there is little or no rain; in fact it will deliver the most water during the hottest, sunny and dry parts of the year, which is when fragile seedlings need the most water. Other water storage and dew harvest devices may not have any water left during the critical part of the year when A2WH is delivering the most water. Since Grow Dryland A2WH produces water directly from the air and since it's production rises during the summer months it is completely immune to drought.
Extracts water from the air and uses that water to keep seedlings alive in desert conditions where water and electricity are not available.
Powered entirely by solar energy which makes it ideal for remote and hard to access locations.
Eliminates the need to drag a hose or a bucket to every tree to provide water.
Makes it feasible to plant trees in areas where you can not visit regularly to provide water.
Delivers about 2 ounces of water per summer day directly to trees roots via a wick or tube.
Support Trees in locations where it is not feasible.
Dramatically increase the survival rate of the trees.
Start trees along perimeter property lines without a massive effort to install a drip irrigation system.
Each Grow Dryland can start many trees over its useful life.
When combined with wicking drill techniques Grow Dryland can guide seedling roots into deeper subsurface moisture so it can thrive even in the dry desert.
When used with a wick system, the water collected by the A2WH unit can guide the seedling’s roots deep below the surface where soil moisture is sufficient for the tree to continue to develop and thrive. Once the plant is large enough to grow on its own the Grow Dryland can be moved to support a new seedling. When combined with a bio-sponge and land profiling techniques the A2WH unit can support tree seedlings in the most hostile and desolate conditions.
Grow Dryland is not a fog capture system and uses entirely different physics with most of the working energy being provided in the form of solar heat. Grow Dryland works well in dry desert conditions without supplemental water. Grow Dryland will deliver the most water during the hottest summer day when many other AWG (Atmospheric water generator) technologies fail.
Where to use Grow Dryland:
Start trees for to provide wind screens where irrigation is unavailable.
Start shade and fuel trees at remote locations like camping and recreation lots where there is no water available.
Start perimeter privacy and wind screen trees on larger lots where Grow Dryland may be easier and less expensive than installing large irrigation systems.
Start forage trees restore grazing lands and provide drought resistant alternate food source.
Start trees to provide habitat and shelter to attract wildlife to barren desert lots.
Start the process of revitalizing degraded and desertified lands by starting trees that can hold moisture in the soil, reduce erosion, reduce runoff, reduce dust loads, provide habitat and aid in returning the land to healthy state.
Support growth of plants in areas where municipal watering restrictions would prohibit the same plant.
Establish high nitrogen biomass trees on cheaper land where no irrigation rights are available. The foliage can be used to produce traditional biomass for fuel or used to produce high nitrogen compost.
Produce income from desert land without increasing demand on groundwater.
Grow Dryland is best combined with the rest of our planting process which can help grow trees in the most hostile hot and dry locations. Many locations only need a small portion of the planting process. Our goal is to provide the technology and process that will allow high survival rates in the most challenging conditions.
Wicking root Drill – guides roots to naturally available water where they may never have otherwise reached.
Bio-Sponge – Stores water from rainfall so the tree has a local reserve while providing naturally decomposing nutrition.
Micro Land profiling – Guides water to the Bio-sponge for storage, reduces evaporative losses and helps eliminate soil erosion.
Food and Foliage – Reduces drought related food famine.
Nitrogen rich compost – The nitrogen rich leaves can be composted for nutritional fertilizer that holds moisture.
We fabricate these units as we receive orders in our facility near Seattle Washington. We test every unit before shipping and it can take a few weeks to work through the full process. Each unit contains the main A2WH Grow Dryland device which includes the solar electric panel and battery needed to allow it to operate. The user must supply the local planting supplies and the wick if desired.
A2WH technology is patented in the USA with international patents pending. A2WH also produces larger AWG (Atmospheric Water Generation) units which extract water from air using solar energy. A2WH units can be assembled in farms to produce thousands of gallons of water per day. We also have plans that can allow very large A2WH units that are constructed in village and can deliver hundreds of gallons of water per unit.
A2WH technology uses Solar heat for the primary energy source with a small amount of electricity to run the sensors and fans. The required electricity is supplied by the included solar panel and a battery. A2WH was designed for sunny locations and it requires sun to operate A2WH will not produce as much water during the winter or periods with heavy cloud cover. Do not purchase locations where little solar energy is available as A2WH or areas where Photo Voltaic solar panels would not be effective.
Feel free to contact us with questions 206-601-2985
Water drops forming on interior of the Grow Dryland skin
Desert tree planting, Desert planting, Desert greening, Desert agriculture,
Desert cultivation, wind break trees, desert land reclamation,
Mitigate desertification, Create Desert life oasis.
Why Grow Dryland and Trees
“Grow Dryland” was invented to reverse desertification worldwide. It is part of a larger program designed to revitalize large areas of degraded and desertified land. This plan centers around starting profitable trees because:
Trees can act as the anchor for a recovery oasis
Trees can provide biomass for compost, animal food and fuel in the short term while delivering a valuable lumber product in the long term
Drought tolerant trees and our planting process can produce valuable foilage during drought conditions when other food sources are drastically reduced
Trees are ideally suited to take advantage of our micro catchment and the water from "Grow Dryland" in a way that annual crops simply can not match. This allows us to support a crop on land that simply could not support traditional agriculture.
We can start trees using this process during the worst drought and still deliver high survival rates
This kind of planting can rehabilitate the land without increasing groundwater demand. Demonstrating the ability to deliver a profitable crop without drawing groundwater is critical in many parts of India, Mexico, Pakistan, Texas, Oklahoma and California where over pumping of ground water is causing well levels to drop. This is especially true in Mexico and India where groundwater levels have already dropped to levels where traditional farming techniques are failing due to lack or water or increased costs to obtain the water.
It will be most beneficial in areas with low rainfall or common drought where other approaches have failed.
Improved water retention and microcatchment when deployed in large scale can help restore groundwater levels in degraded areas which can accelerate the restoration and revitalization of degraded land.
Fodder trees provide an alternative animal feed that can allow local farmers to reduce their demands on natural grasses and allow those lands to start the recovery process.
The foilage and compost from high nitrogen species such as
Albizia Lebbeck and
Red Alder can be added to soil of traditional fields which can improve yields as a natural fertilizer. They can also increase water retention which can increase food availability especially during drought years.
Our assertion is that we need people living in desertified areas to plant, maintain and protect the trees needed to revitalize the land. To gain their enthusiastic support they need to gain local benefits, income or food from those trees. We focus on strategies synergistic with the needs of local farmers and local villagers who we believe will make the best long term stewards. All plans require money to get started but unlike many approaches our plan can deliver a profit so it is not entirely dependent on charity or government funding.
The A2WH system produces pure potable water from air using only solar
energy. It operates with a much lower operating cost than other
AWG systems because it does not require large amounts of electricity.
The A2WH system absorbs moisture at night when humidity is relatively
high and converts what it absorbed the prior night into liquid water
the following day using solar thermal heat. Well over 90% of the energy
used in the system is solar heat.
A2WH is a new generation of solar powered atmospheric water generator device (AWG) which are also known as water maker devices (WM) and Water Air Extraction Devices (WAED). A2WH is not a fog or dew capture system and uses a completely different process. ">
In A2WH systems all condensing occurs at near ambient and does not
require any refrigeration. Air filters are used to filter the
air before the absorption which keeps the interior of the
system clean.
A small amount of energy is delivered by Photo Voltaic panels which
operate a microcomputer control system, sensors, blowers, pumps, etc.
Producing water where it
is
needed:
Imagine the ability to deliver safe drinking water in places where
there is no power, no safe ground water, no available surface water and
no viable rain capture. Imagine doing this where there isn't
even
any salt water or where the salt water is too contaminated to allow
effective treatment.
Every day solar heat cycles 1,356 cubic kilometers (358 trillion
gallons) of water through the atmosphere. A portion of this
blows
over land where our AWG units can capture it and turn it back
into fresh, pure liquid water usable for drinking, cooking
and
crops. Our A2WH units can do this in the
hottest
deserts and in fact run best in hot sunny locations where water is
needed the worst. We do not need rain,
fog or any
other form of precipitation.
Our A2WH design has few moving parts which are easily serviced and can
use low grade heat from simple solar collectors. This systems
unique design makes it environmentally friendly and suitable
for
cost effective scaling from small household models through
industrial and institutional systems producing many million gallons per
day.
Water
Water is essential for human life. We drink it and use it for
our
crops. Water is already scarce and becoming ever
more
valuable. In fact the UN has predicted wars over access to
fresh
water. Shortages of water in California have already caused
more
than 100,000 acres of farmland to lie fallow as a result of the 2008
drought.
Over 70% of earths surface is covered with water but very little of
this water is useful for humans to drink or grow
crops. 97% of all water is saline
contained in the
oceans which leaves only 3% as freshwater. 70% of
the
freshwater is locked up in ice leaving 22% as ground water and surface
water. Ultimately less than 1% .of the world total is
represented
in lakes, rivers and wetlands.
Adequate water is essential for economic and political growth
and
stability. Our technology is specifically designed to deliver
water in locations where unsafe or insufficient water is
available. It was invented to allow continued
development
in areas where all other water sources have been exhausted or are fully
allocated.
Ultimately we hope to see our water from air technology used to reverse
desertification by providing sufficient water to establish green zones
in the deserts. This will ultimately reduce food insecurity, reduce the
risk of drought induced famine and reduce the poverty
induced when people are forced to scavenge on a day to day basis just
to obtain enough water to meet their basic needs.
How does A2WH work?
The A2WH system uses a desiccant
to absorb moisture from the
air. The higher the humidity the more water our
desiccant
can absorb per pass which increases production.
We use solar heat to drive both the
airflow for the absorption process
and to provide heat during the regeneration process which extracts the
moisture from the desiccant and allows us to capture the water in
liquid form.
A sophisticated micro controller
based sensor system determines when to
switch between absorption and regeneration modes. We use
different types and amounts of desiccants depending on the local
conditions to optimize the performance of the
system. A small Photo
Voltaic solar panel
provides power for the micro controller, sensors, various valves,
etc.
We have an optional enhancement that
uses wind energy (wind over 4.5
MPH) to drive circulation at night when the relative humidity is
higher. To make this work best we increase the
weight of
the desiccant used in the system. In some areas
with good
nightly wind this allows the unit to work in areas with daytime
humidity as low as 10% We have optional enhancements which
allow
electric fans and heaters to augment or replace the solar heat.
The input air is filtered before it
enters the absorption chamber where
the desiccant absorbs water out of it. The air is re-filtered
when heated for regeneration. A final stage of filtering is
used
as the air enters the condensation phase where the H2O is turned into
liquid water. As a result the output water is very
pure. We still recommend treatment using
a NSF 54
grade filter prior to consumption because we do not have any control
over the cleanliness of the storage tank.
Our difference from common
market units.
Most Air to water systems use refrigeration to chill air to the
dew
point that means that as the dew point drops the more the unit must do
more work to sufficiently chill the
air. This causes them to use large amounts of
electricity. It is fairly common for electric units to consume of
2.2Kwh per gallon produced which gives them a high variable operating
costs which can exceed 40 cents per gallon.
We designed A2WH units to operate entirely from solar energy. This
is mostly solar heat with a small amount of solar electricity used to
operate valves, sensors and the electronic control
system. This allows our system to operate much more efficiently which
is
especially important in areas where electricity is expensive such as
islands where electricity is generated using imported
fuels.
Most AWG systems are built around a refrigeration system which is very
similar to that used in small electric air conditioners. The
best
units consume 600 to over 3,000 watt hours per gallon of water they
produce. The industry average trends show consumption over 2,2000 watt
hours per gallon which rise rapidly as
humidity drops.
A2WH functions with no external electricity. This saves 3,000
watts per gallon. Our novel design and control system allows it
to efficiently extract
water in a wide range of conditions including conditions where electric
AWG units become inefficient or do not work at all.
NOTE:
We recently received a
letter from a man who has a 40 acre ranch in a remote part of
Arizona. He purchased an electric refrigeration
unit. After investing $29,000 in solar
panels and
batteries his unit still doesn't work when the humidity drops
below 48% RH and still does not deliver the rated production.
Our units can reduce carbon emissions by over 5 pounds of carbon per
gallon produced as compared to grid powered electric systems. (2.2
pounds carbon per KWh saved * 3000 watts per gallon =
6.4
pounds of carbon per gallon of water). Even a small 6
gallon per day system this adds up to nearly 11,000 pounds reduced
carbon emissions per year.
Our system uses solar thermal heat to harvest water from air even when
the air has low humidity. Unlike radiant
condensation
systems this system actually produces during the dry months even when
there is no dew and it's production can go up in windy locations which
can prevent radiant chilling systems from working at
all. Our technology can work in conditions where the dew point is far
below
the chilling level delivered by radiant chilling panels.
Our most important difference is the compatibility of the core design
for scaling efficiently into millions of gallons per day at a
reasonable cost. It's other major benefit is compatibility
with
remote areas where grid power is either unavailable or
expensive. In some areas our units can be installed
in
mountains outside of towns and provide both water pressure and
electricity for the town. Rather than exaggerate summer power
shortages our system can actually help reduce these shortages.
When
a cost per gallon range is supplied the high end is qty 1 while the
low end is qty 5,000. All costs are basic
estimates and are
influenced by region and fluctuating materials costs. All
orders
must
be pre-paid and we lock prices in when the payment is
received by
pre-purchasing the supplies at that time.
To
use this to calculate capital investment. Choose a system size such
as 5,000 gallon per day system at $0.09 per gallon. Multiply
daily production by 365 days per year to find the system will
produce approximately of 1,825,000 gallons per year and 36,500,000
gallons during it's useful life. To obtain the capital cost you then
multiply 36,500,000 * $0.09 per gallon = $3,285,000 purchase price. You
should add local installation costs of about 20% and 7% annual
service.
