• Post Reply Bookmark Topic Watch Topic
  • New Topic

Saving Urine - Concentration  RSS feed

 
Tokunbo Popoola
Posts: 212
Location: Sacramento, CA
1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
sorry for the random question can you cook urine down to a cake concentration or something like that to store it and use it later? freeze it or something. just wondering.
 
allen lumley
pollinator
Posts: 4154
Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
58
books fungi hugelkultur solar wofati woodworking
  • Likes 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
ToKunbo Popoola : unless you are going to stop peeing some time soon, you have a lifetime supply, no need to save it at all !

Simply figure out how much water your plants will need every day, make sure your urine is well diluted and use it while it is fresh.

The only common exception would be for very strong drugs like chemo-therapy drugs that should go through the municipal sewer
system if you're worried about a specific other drug, and just don't want to use your urine on food crops dilute it and Feed it to
ornamentals or your greenery ! Hope this is useful and timely ! Big AL !
 
Adam Moore
Posts: 123
Location: Mansfield, Ohio Zone 5b percip 44"
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Interesting question Tokunbo. I wonder if the urine is dried fast enough maybe no ammonia produced and low nitrogen loss? In a temperate climate where I live drying and storing could come in handy. Save it during the winter months when the plants are dormant. Then use it during the summer months. I guess it could be dried on a wood stove in a greenhouse to stack functions? I bet the smell would be to bad to dry indoors.
 
Rebecca Norman
gardener
Posts: 1269
Location: Ladakh, Indian Himalayas at 10,500 feet, zone 5
126
food preservation greening the desert solar trees
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I agree that on the one hand, it's such a daily resource that there's hardly a need to store it up. On the other hand, plants don't want to be fertilized in the winter. And midwinter is when our dry composting toilets start to leak at the bottoms a bit -- icicles! because in summer there's more drying action naturally in the toilet than in winter. And for the third reason, in winter some people are less inclined to go all the way out to the toilet outhouses in winter nights, so collection in containers tends to happen, so of course one thinks of storing it till the growing season.

However, urine tends to precipitate white hard salts that look like plants wouldn't like them. Presumably would be worse on drying. And the smell of stored urine, I think it starts turning into ammonia, is really really strong and only gets stronger. The ammonia is volatile (thus the smell) so as liquid urine dries you are losing the nitrogen and creating a nuisance. And finally, to dry down such a watery liquid would take a huge amount of either heat or air exchange, and doesn't really sound very viable.

These days I've been thinking that a huge pile or container of sawdust would probably be the best way to store urine of winter through till summer. As compost of course. It would need to be really huge, I think.
 
kai weeks
Posts: 59
Location: The forest, Sweden. Zone 7. Sandy, acidic soils.
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
An outdoor toilet that after each use gets a handful of saw-dust/wood-chips, if you then consider the added carbon of the toilet paper used I think that your compost pile at the end of it will have a very good C-N ratio. The urine will hence be stored for whenever you need it.



 
Tokunbo Popoola
Posts: 212
Location: Sacramento, CA
1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Rebecca Norman wrote:I agree that on the one hand, it's such a daily resource that there's hardly a need to store it up. On the other hand, plants don't want to be fertilized in the winter. And midwinter is when our dry composting toilets start to leak at the bottoms a bit -- icicles! because in summer there's more drying action naturally in the toilet than in winter. And for the third reason, in winter some people are less inclined to go all the way out to the toilet outhouses in winter nights, so collection in containers tends to happen, so of course one thinks of storing it till the growing season.

However, urine tends to precipitate white hard salts that look like plants wouldn't like them. Presumably would be worse on drying. And the smell of stored urine, I think it starts turning into ammonia, is really really strong and only gets stronger. The ammonia is volatile (thus the smell) so as liquid urine dries you are losing the nitrogen and creating a nuisance. And finally, to dry down such a watery liquid would take a huge amount of either heat or air exchange, and doesn't really sound very viable.

These days I've been thinking that a huge pile or container of sawdust would probably be the best way to store urine of winter through till summer. As compost of course. It would need to be really huge, I think.


thank you. it's good to know.
 
Su Ba
pollinator
Posts: 966
Location: Big Island, Hawaii (2300' elevation, 60" avg. annual rainfall, temp range 55-80 degrees F)
117
books forest garden rabbit solar tiny house woodworking
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I've stored urine in 5 gallon buckets with gasket sealed lids. Helps control odor that way. I've also have stored it in recycled heavy duty plastic gallon jugs....not milk jugs, which degrade and leak. Empty rinsed out bleach bottles work fine. I haven't noticed odor when using the bleach bottles, but I do store them outdoors so maybe that's why I don't notice an odor. But be forewarned, stored urine has a strong, unpleasant odor. Thus I've switched to storing urine in the 5 gallon buckets that were first filled with homemade biochar. Eliminates much of the odor.

The only reason I need to store urine is that I have several families collecting it for me. So they store it until they have the time to drop it off at my farm, in exchange for some fresh veggies or eggs. I don't need to store over the winter. I have use for it year around.
 
Leila Rich
steward
Posts: 3999
Location: Wellington, New Zealand. Temperate, coastal, sandy, windy,
88
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Fancy that, another use for fermentation
 
Sheila Kingsley
Posts: 9
1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Years ago my nine-year-old boy had to pee, and our only bathroom was in use. He took a pint canning jar down into the basement and used it to pee in. He put the almost full jar on top of a cabinet between the joists where it couldn't be seen. It was without a lid, and stayed there for who knows how long. Finally, it began to stink so bad we thought a rodent had died in the walls of our little pantry which was in the cellar stairway. We emptied all the shelves and found nothing. We tore out the wallboard - nothing. I finally checked the top of the cabinet with a flashlight and found the jar with about an inch of jelled urine. Mystery solved. I told my son that next time the bathroom was busy to go pee on the compost pile. It turned out well, since I was able to put shelves in the spaces between the studs, increasing my storage space for canned goods..
 
Live a little! The night is young! And we have umbrellas in our drinks! This umbrella has a tiny ad:
FT Position Available: Affiliate Manager Who Loves Permaculture & Homesteading
https://permies.com/t/69742/FT-Position-Affiliate-Manager-Loves
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!