Even the humble tarp that meets these standards is more ‘advanced’ than it appears:
In my opinion, the center of the camp has prominence of place, and should be rather a social center of some kind: gathering place, daycare, school, workshops, communal kitchen, sports facilities, something like that.
A camp that elevate sewage treatment above all other concerns could be a grim place indeed. I imagine it should be possible to have an efficient, standardized sewage system that locates the physical plant off in a more discreet place
Exactly! What do you think a sewer system is? It it literally a subscription to having your poo taken away, by a method requiring huge capital costs, major maintenance, a monopoly operator, etc. It is a concept with lots of room for exploring alternatives.
$1 seems way too high for plastic, that would definitely come down with volume and competition. You can buy plastic bags in the store for $0.10 each easily.
Bottom line, less is more and leverage solutions that have demonstrated actual market traction. A lot of stuff geared towards the poor has no market in the paying world for a reason - it's crap (no pun intended).
Perhaps there is a human manure angle that gets missed with these other approaches, and they may be more resource intensive in terms of plastic?
I wonder how self-suistainble wrt to cost can it be? Similar to water recycling in ths ISS
I guess that the goal is to make it cost effective. To dig deeper that the strictly necessary would add durability that a temporary camp does not need and a lot of extra cost.
It would have been nice to know the advantages and disadvantages of each camp design. But, I guess that it was not inside the scope of designing the sewage.
Collection design appears appropriate, however an outfall location was not selected?
Collection system design is dependent on topography, do you have elevation data for proposed camp sites? Topography can inform your treatment site and outfall selection.
It is utterly shameful that people in need depend on volunteers taking care of such basic needs. Thanks, OP.
In addition, this project could be also used for any type of camp.
I wonder if it then makes sense to run additional services such as power and drinking water parallel to those pipes for similar efficiency?
I wonder if camping festivals and conferences such as CCC camp would benefit from this at all?
This project could be applied for any camp. It is basically studied to be applied for refugees camps as they most need it, but it could be used for any camp that has a big amount of sewage.
Anyway, really cool. Thanks! :)
Constraints are very different, obviously - the ground can't be dug up, public toilets and washing stations are sufficient, there's some existing infrastructure to partially rely on, and it only has to work for at most ~2 weeks or so. Still, many of the "lessons learned" could be applicable elsewhere and I wish there was time to document more of it.
How viable is this in colder climates?
Also, great write up!
PVC pipes get brittle in cold weather and fracture where they freeze.... A low voltage, 120-degree or less, should be installed as an internal pipe heater to keep it from freezing.
This project could be applied for any camp
I have never been anything but happy and relieved that I have done this.
Pipe is cheap. Digging is not.
Edit: Do not put drinking water lines and sewage lines in the same trench.