qz.com
This floating greenhouse may be the future of our food
Composed of a wood and plastic dome and a base of recycled plastic drums, the Jellyfish Barge is a floating greenhouse that desalinates seawater to irrigate and grow plants. Mimicking the natural phenomenon of the water cycle, one solar panel located by the base of the barge heats up the salted or polluted water and makes it evaporate, turning it into 150 liters per day of clean, fresh water. This water gets recycled over and over into a hydroponic system, which allows crops to grow in an inert bed of clay enriched by mineral nutrients.
6

This Old Factory—Now Full Of Fish And Kale—Is Revitalizing A Neighborhood

Urban Organics uses aquaponics to grow tilapia and vegetables in an old industrial space with no dirt and sun. It’s bringing jobs and production back to a downtrodden neighborhood in St. Paul Minnesota—and local food, as well. 

What’s most striking when you enter the brick bunker formerly known as Stock House No. 3 is the green, says Fred Haberman, a cofounder and partner in Urban Organics, a futuristic farm housed inside a long-vacant structure on the former site of Hamm’s Brewery in East St. Paul. “It’s mind-boggling to come into this old building and see so much greenery,” he says. “The colors are almost electric. Looking at this kale planted two weeks ago, you’d be shocked at how quickly it’s grown.”

The “secret sauce” for growing that electric-green kale, chard, and leafy herbs is the nutrient-rich wastewater pumped from four 3,500-gallons tanks of tilapia, which flows through a system of pipes and filters to irrigate and fertilize the plants before returning, clean, to the fish. The closed-loop, recirculating aquaponics system may be the largest such indoor facility in the United States, and one of the most technologically sophisticated.

Read full article on FastCoExist

The Chemistry of Aquaponics

Aquaponics is a hybrid food technology system: it combines conventional aquaculture (tank rearing of aquatic animals) with hydroponics (the growing of crops in nutrient-rich water, without soil). This system is a valuable alternative both to traditional agriculture and to fishing and fish farming; its advantages include water conservation, sustainability, and the eliminated need for soil. Aquaponics allows for successful farming in areas where arable soil is not available, such as urban centers. It also has potential value for sustaining life in outer space.

The basic mechanism behind aquaponics is the recirculation of water. Fish are kept in a tank of water where their waste products (which contain nitrogen), are allowed to accumulate. Before the nitrogen concentration reaches toxic levels, the waste-filled water is cycled down to the plants, which are able to utilize the nitrogen as a nutrient. This purifies the water, which is then cycled back to the fish, allowing the process to begin again.

Aquaponics systems rely on specific nitrogen chemistry to function; in fact, the aquaponic nitrogen cycle is essential to yielding a successful harvest. Fish produce ammonia, a compound of nitrogen and hydrogen with the formula NH3, during excretion, which is turned into ammonium, NH4+, when it reacts with water in an ionizing reaction. Bacteria then convert the ammonium to nitrates, NO3-, which are the main nitrogen source for most plants. As the plants use the nitrates, nitrogen is removed from the water, purifying it for the fish. Provided that the chemistry of the system remains balanced, aquaponics makes for healthy plants and fish.


References:

http://horttech.ashspublications.org/content/21/1/6.full

http://www.usc.edu/org/quikscience/Projects/2013/HS/Kamehameha-RP.pdf

http://afsic.nal.usda.gov/aquaculture-and-soilless-farming/aquaponics

By Akshata Yalvigi, Writer
Edited by Carolyn Dallimore

2

Solar Innovations, Inc.’s greenhouse experts are continuing the series on the aquaponic project.  The aquaponic growing system has successfully produced plant material and the greenhouse experts are eager to share their success.  One of the keys to success in aquaponic growing is monitoring and maintaining the water on a regular basis.  The pH levels need to be tested to ensure that the correct balance is maintained for both the plants and any living creatures that may be part of the aquaponic system.  Solar Innovations, Inc. has included tilapia and shrimp that together create a sustainable system.  With the addition of animal life, the water quality becomes the top concern for continued success.  A regular maintenance check of the circulation system is completed to ensure all the tanks and pumps are continuing to function properly and that there will be no build up of unwanted bacteria due to a lack of circulation.  

Soon, the tilapia will be carefully evaluated to ensure that the school is thriving and the success of the aquaponic project will continue.  Each fish will be pulled from the tank, measured individually, and evaluated for any potential problems.  

Overall, the project has been a huge success and the greenhouse experts are enjoying the success of the project on a daily basis.  Stay tuned for more information throughout the Fall and Winter seasons.

6

Hi Guys,

The rain started very early this morning and everything looks so green!

Everything is growing very well, we still haven’t lost any of the seedlings and have even added sage, coriander, basil and tomatoes into the spare spaces.

There is a definite line that exists in aquaponics between running a system on seasol whilst waiting for fish to arrive, and the week or two after fish arrive and the system begins to be powered by waste and the nitrite/nitrate/ammonia cycle.

You can almost see the plants grow and count the new buds and shoots daily.

What will be the biggest learning curve for me in the Deep Water System, will be planting patterns, where things grow best in this system, what slows water flow such as the celery, and what plants need the most or least nutrients. This is really very exciting!

The little system is all mapped for us, we know what grows the best where and what we can get each year from the space we have, but this new system is completely different. And its fun, and we love the fact that we can share it all with all of you.

Thanks for following everyone, and welcome to our new followers!

Aquaponics: Fish Farming & Water Gardening. 💧🌱💧🐟💧

Hydroculture (water gardening) may date back to as early as the Hanging Gardens of Babylon, the ancient Aztec chinampas, and the ancient Chinese floating gardens. Aquaponics is the combination of aquaculture (raising fish) and hydroponic agriculture (growing plants in water without soil). Plants naturally filter water for the fish, and fish waste provides organic food for growing plants. Some popular fish choices are trout, catfish, bluegill, and tilapia. Plant choices are nearly limitless, except for plants that require an acidic environment. A backyard greenhouse is ideal for sunlight and natural climate control. Aquaponic gardening uses 90% less water than traditional soil gardening, because the water is re-circulated. Aquaponic gardening yields two foods for one input (fish feed). Plants also grow 2 to 3 times faster in aquaponic systems. Start-up costs are completely worth it once balance is established to gain the renewable rewards and self-reliance. What are your thoughts? Would you try aquaponic gardening?

http://www.motherearthnews.com/organic-gardening/aquaponic-gardening-growing-fish-vegetables-together.aspx

http://www.offthegridnews.com/survival-gardening-2/hydroponics-vs-aquaponics-the-pros-and-cons-of-two-soilless-farming-methods/

#Survival #Homesteading #SHTF #Gardening #WaterGardening #Aquaponics #Aquaculture #Hydroculture #Agriculture #Horticulture #Botany #Hydroponics #Farming #Fish #Fishing #FishFarm #Sustainable

modernfarmer.com
From N16 to SW9: How London's Urban Farmers are Cultivating the City - Modern Farmer
From the UK’s first acquaponic vertical farm to a bee apiary that spans the city’s gardens and rooftops, a new generation of farmers are transforming London into an urban acreage.

How London’s Urban Farmers are Cultivating the City

One of the most expensive cities in the world, London is not known for its urban agriculture. Yet a new generation of farmers is starting to change all that by transforming the city’s underground tunnels, industrial warehouses, and rooftops into urban acreage. Read the full article on Modern Farmer.

5

Hi All, 

I have often been criticized for the depths of my Deep Water Aquaponic beds, comments to the nature of ‘too deep’ or ‘waste of water’ and even ‘un-traditional’ and some other far out there comments.

But this is why we made them 450mm deep and not the traditional 150-200mm deep the literature recommends. It makes sense when you think about it, if a media based aquaponic bed is recommended to be a minimum of 300mm deep for adequate root growth, why make a deep water bed only 200mm deep!

These celery roots reach the full 450mm depth of the grow beds, (nearly half a metre!) and 200mm outwards under the raft beside it. So much so that the net pots directly next to these need to be empty or risk being over run.

Even at this depth, these roots still slow water flow significantly, and had the beds been shallow ones, these celery roots would have clogged the system up for sure. We are only pushing 1000ltrs per hour through these beds, so its not a great water flow as it is, but i will need to keep a very careful eye on this when the other seedlings begin to reach full size to make sure i have adequate water flow.

Just something to think about.

Have a safe weekend everyone, and WELCOME to all our new followers! Thanks very much for taking an interest in us, in means a lot to us!

Regards

Fort McMurray greenhouse to turn garbage into veggies

The name Fort McMurray often conjures up grim images of oilsands mines, upgraders and tailing ponds.

Now, the local government is trying to turn over a new leaf – or at least grow some new leaves.

The community plans to use garbage from its landfill to grow vegetables. Already, during the test phase, they have grown lettuce and herbs inside of a shipping container at the community’s landfill.

“You always hear [negative] stuff about the oilsands, but these things that we are doing, are making it better,” says Ashley Boyd, sustainability associate with the Regional Municipality of Wood Buffalo.

Read more

Webofgoodnews.com

2

Does this look to good to be true? I kinda want to see a finished one.

1. Water Vortexer 2. Double Green House 3. Aquaponics System 4. Waste Water Reclamation 5. Grey Water Reclamation 6. Colonics Toilet 7. Zeolite Shower Filter 8. Solar Power 9. Wind Power 10. Plasma Enhanced Electrical Generator 11. Grounding Bed 12. Hanging Bed 13. Solar Heated Water Tank 14. Water Vortexer 15. High Tech Living Kitchen 16. Yoga Swing 17. Far-Infrared Sauna 18. Geopolymer Foundation with Radiant Heat

http://www.sustainabledomes.com/