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Lagoons!

 
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First off I'm not going to let a lagoon go to waste (all pun intended) if the homestead I buy has one. I would almost prefer to have a place with a lagoon than a septic tank. So how do I turn a lagoon into part of my permaculture/food forest landscape?
I am thinking I have to have a composting toilet rather than using the lagoon for all sewage. I'm torn about using the lagoon for urine but think it would be okay to add extra nitrogen. Or would that be bad for frogs and fish?
In my vision the lagoon will host ducks for eggs and meat, some fish probably crappie just for the pun of it, and plant life but not plants for human consumption for a few years as the previous owner likely did not have a loveable lou!
We only use eco friendly biodegradable cleaners and body care products. Is there  limit to the amount of theses that could go into a lagoon that hosts life? Most of what we use is homemade or simple baking soda, vinegar, essential oils etc. What 'natural' products should we avoid and/or use buckets to dump outside instead of down the drain?
Please help me come up with a logical, sanitary and sustainable way to incorporate a sewage lagoon into a productive portion of land!
 
gardener
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Location: Cincinnati, Ohio,Price Hill 45205
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I might divert the urine away from the lagoon.
It's not only high in nitrogen and thus a potential cause of algae bloom , but those traits make it potentially valuable elsewhere.
Keeping human derived nutrients out of the lagoon would let you use it to grow Azolla, which is a nitrogen fixer and food plant.
The plants and creatures in the lagoon will only have to deal with the subtrances in the grey water, mild by comparison to urine and faeces.
Adding both the poop and pee to a land based compost pile seems like the way to capture the most nutrients for your homestead.


 
pollinator
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Location: Massachusetts, Zone:6/7, AHS:4, Rainfall:48in even Soil:SandyLoam pH6 Flat
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I would send all the grey water to a bio-filter system then to a mulch ditch that sub-surface flow to the lagoon. I would also setup a parallel worm composting system for my black water and let a mulch ditch/mound system that sub-surface flow to the lagoon. By the time the water gets to the lagoon most of the chemicals/nutrients will be gone. you could re-use the lagoon water to provide water for the toilet, and to do drip irrigation, if the lagoon can support that.

I wonder if hey will require that the lagoon be filled and cap if you are not going to use it, because it is toxic/dangerous?

If a septic tank is done away with I wonder if a part of the pipe could be enlarged to put in an observation hatch. Large enough that it could be a 250gallon IBC tote, that is used as a biofilter.


 
Gail Jardin
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William Bronson wrote:I might divert the urine away from the lagoon.
It's not only high in nitrogen and thus a potential cause of algae bloom , but those traits make it potentially valuable elsewhere.
Keeping human derived nutrients out of the lagoon would let you use it to grow Azolla, which is a nitrogen fixer and food plant.
The plants and creatures in the lagoon will only have to deal with the subtrances in the grey water, mild by comparison to urine and faeces.
Adding both the poop and pee to a land based compost pile seems like the way to capture the most nutrients for your homestead.



Any recommendations on sourcing Azolla seeds? I'm guessing it woudl make good feed for ducks and frogs? I guess my goal is to have the lagoon be more of a pond that is given a flowing water supply than an actual sewage lagoon. I have used a loveable lou before and can envision doing it again, especially since I am in a much milder climate now!
 
William Bronson
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Well, I would look for a local place that deals in pond supplies and fish, but it can be ordered online.
 
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Location: Saskatchewan
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My house is set up with a lagoon that is completely surrounded by woods. The trees that are close have awesome growth and would be a great place to start harvesting firewood. The lagoon itself is rather small and has steep sides and as all our household wastewater goes to it it is rather icky and completely plant less in the deep shade. It was like this when I moved here and so will continue to use this system to grow trees as it seems to be working.

So you could also use it as mainly growing tree crops around it to suck up all the excess nutrients. The one downside to this is it may need to be cleaned out every couple decades as leaf matter slowly fills it in.
 
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