After many (too?) Weeks past without leaving messages I will try to keep this blog updated a little more. In fact, I am pleased to note that attendance has increased significantly since today about 50 people connect daily. It's great Straw right?
This summer has been more than studious as we followed the schedule that we set.
I will not tell you in one message all the work.
I begin by giving the clean (hence the title).
Sanitation by VFCWs
Earlier this summer we enjoyed the participation of 3 persons (Gaëlle Thomas and Baptist). Together under a blazing sun we established pools of sewerage.
Our house is not connected to public sewer, we therefore had to develop a site sanitation. As we took the bias to push up ecologically sound, we wanted to implement an alternative sanitation through constructed wetlands. Previously, we used a desk study (Philippe Redois) which developed a file attached to planning permission. French legislation (for those who do not know) requires that the community is the opinion of bodies responsible for sanitation (either via the DDE DDASS it may be annoying but true!) .
Now then, the DASS has given a negative opinion on our building permit because "the die remediation that we wanted to set up, does not match the usual legislative framework. "The DDASS authorizes the remediation of the 5 channels" classic. "What comes out of it, and whatever the quality of these solutions is automatically
refused .... This allowed us to implement this consolidation legally, is that planning permission is granted by the City Council. The mayor has the sole power to grant or deny a building permit and whatever the opinion of the DASS
... Since we had a record that was the road that we had to be convincing and that we were dealing with people open and intelligent, the permit building has been given to sanitation by basins planted filters
To return to the site this summer, so we dug (in a sweltering heat) the holes for the nozzles. I started to dig by hand and after a few liters of water lost, we rented a mini excavator. Any
the following description corresponds to our facility. It can in no way be used as such in your home without prior study. We
this improvement in place in the absence of blackwater (toilet water) since we have dry toilets. Our sanitation
nozzle consists of wells (not perforated) made of concrete. They are placed on the ground and a concrete cap covering the earth.
In our case, we have 6 pools: -1
nozzle opening hours in which we ask a screening area (drum washing machine), a self-trap (100 cm diameter)
-1 light distributor (look 20x20 cm) -4
vetical basins operating in series of 2 (100 cm diameter) -1
horizontal basin (diameter 100 cm) -1
light collector (look 20x20cm) -1
terminal pool (minimum of 3 m3)
Operation
- In the first nozzle (receiving)
Greywater arrive, the impurtés are eliminated by the washing machine drum.
When the water reaches the top of the auto-siphon, suction is automatically (unbelievable but it really works), the water is emptied aisni of the first nozzle to go to the next dispatcher.
- Within the next dispatch
2 pipes that look to go two vertical tanks. 1 month to 2 of these inputs is blocked. He must block their departure to avoid that water comes in 2 of 4 pools. Indeed, plants have purifying efficaité better if they were put in stress (hence the fact to prevent the intake of organic matter for a month).
The following month, it is the other basins that are fed ...
- In basins vertical
Water arrives in a first tank (qaui is actually the 3rd if you have followed) from above. She must cross the pozzolana found in this basin. In this pozzolana (volcanic rock that is) purifying plants have developed roots that are used to purify water. When the water level is sufficient, self siphon at the bottom of this basin is fired water is partially removed to a second vertical pelvis. The same is done
in this basin and water is then sent to a horizontal basin.
- In the horizontal
Basin Water comes from the top and leaves at the top. It stagnated in the pozzolan (and plant roots) before returning to a look manifold (where it is possible to take samples for analysis) and a pool terminal. The water entering this pool is completely purified and could be released into the wild.
To synthesize (I'm not sure I was clear) our system consists of watershed
-1 -1
look repartitors
-4 -1 catchment basins
vertical horizontal gaze
-1 -1
collector terminal pond
We coated the inside of the nozzles with ASTER CONCRETE. It is a product of St. Astier in making fully waterproof bins.
Self-traps are made of PVC pipes (oops) of 32 mm in diameter.
must be very vigilant about the flatness of the nozzles (they must be perfectly level).
Once installation is complete, we conducted the impoundment to determine if the nozzles were really tight ... This was the case
The next article (ah ah ah) of the tank réupération of rainwater ...
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