I believe it would be safe to treat the pee water as if it were grey water and deliver it strait to grow beds.
Wendy Howard wrote:Update on the municipal adventure ... We (me and a Portuguese friend who's an architect) met with the câmara municipal (town council) today and they've approved, in principal and subject to further approvals and investigation, the installation of a vermicomposting system to solve the problem of the village septic tank outflow I mentioned above. Not only that, but with the enthusiastic participation and suggestion of the presidente of our local junta de freguesia, they're looking at converting the entire system over to a vermicomposting one - ie. to replace septic tank processing by converting the tank itself into worm housing. And following verification and testing, to convert all the septic tanks of the villages in the area in the same way. The ICNF (Instituto da Conservação da Natureza e das Florestas) need to agree since it's a protected landscape - ironically they might be the biggest hurdle - and we need to get a few more scientists and environmental engineers on board, but what a wonderful breakthrough for sustainable infrastructure! Kudos to the local councillors for being able to think outside the box and recognise a good solution when they see one!
Rebecca Norman wrote:I visited Anna Edey, author of Solviva, last week, and she showed me her flushing humanure system. I'm not sure I understand it completely -- can it be as simple as all that? How do the worms not drown? Hm. I should have taken pictures, oops.
Sean Kettle wrote:Wow, I would love to see the mother worm tank in action incredible bit of ingenuity. Amazing that that wee box hasn't been emptied in two decades...
How is are your worms in Portugal going Wendy?
To be sure, there were various problems that developed with the system. The most serious was the fact that a lot of grease, primarily olive oil, was getting into the filters, thereby gumming them up and killing many of the earthworms. This problem was unexpected because the grease was supposed to stay in the grease trap, but because the restaurant used very hot water instead of bleach for disinfecting the dishes, the grease did not have a chance to congeal and therefore migrated into the filters.
We quickly made numerous small but important adjustments to the system to rectify the grease damage, such as increasing the drainholes in the Brownfilter containers, adding fans and replacing the medium in the Brownfilter. However, according to DEP, no adjustments could be made without getting a permit, which of course would take months, and to wait was impossible because the adjustments had to be done when they had to be done, because 5000 gallons of wastewater effluent kept coming each day. So these adjustments were added to the list of violations.
Rebecca Norman wrote:Sadly the system that Anna Edey installed at the Black Duck was removed at the behest of the Department of Being Difícil. I forget the exact details she said, but they installed it and it worked great. She said the standard of the effluent was good. For some reason installing it meant they had removed the grease trap that had previously been before the septic tank. So the grease was building up and causing a problem. Oh, wait, no, they used to pour boiling water down for various reasons like pasta water, and that would keep the bacon grease or butter from building up, but with the living system they had to stop pouring boiling water down, so they replaced the bacon grease and butter with olive and vegetable oil, and that was building up a layer on top. Oops, I forget the detail.
Anna Edey proposed that they just enlarge the primary system but the govt department insisted they rip the whole thing out and go back to a regular septic.