Dr_Doggy
Well-Known Member
Similar to an individual recently I have been trying to purify water for a wastewater recovery septic system, 3 options I was considering was:
1) RO - maybe the cheapest , and the way to go, water doesnt need to be 100% clean, just enough so that we can still get a clean toilet flush, it was suggested that i may go through filters quick.
2) a Electrolytic cell powering a Galvanic cell, now i realize that the reaction will take more energy to split than to recombine using water only but my solution to that problem lies in the fuel hidden in the waste water in the form of ammonia and nitrates which takes less energy to split, then i can pipe the h2 and recombine it in the other cell as pure water. with a bit of energy surplus. Does this make sense to anyone else? few problems anyway though , I would prolly need huge cells that cost huge $$. but just wanted to hear how yall felt about this.
3)
The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C).
this leads me to the distillation process which requires huge amounts of energy, = 336000kj to heat 1kg from 20deg to 100deg. PLUS I read somewhere else that it takes almost that same amount of energy to go from 100deg liquid to 101deg gas...?
So going shopping i see lots of distillers like this:
Considering that the kettle holds 1kg, id need 672000kj to evaporate it all.
But I often wonder what if i move the condenser like this so that the steam inside transfers heat to the water that needs it, thus recycling almost all the energy. but I have seen no setups like this which leads me to believe there is a flaw to my plan. Can anyone see it?
1) RO - maybe the cheapest , and the way to go, water doesnt need to be 100% clean, just enough so that we can still get a clean toilet flush, it was suggested that i may go through filters quick.
2) a Electrolytic cell powering a Galvanic cell, now i realize that the reaction will take more energy to split than to recombine using water only but my solution to that problem lies in the fuel hidden in the waste water in the form of ammonia and nitrates which takes less energy to split, then i can pipe the h2 and recombine it in the other cell as pure water. with a bit of energy surplus. Does this make sense to anyone else? few problems anyway though , I would prolly need huge cells that cost huge $$. but just wanted to hear how yall felt about this.
3)
The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C).
this leads me to the distillation process which requires huge amounts of energy, = 336000kj to heat 1kg from 20deg to 100deg. PLUS I read somewhere else that it takes almost that same amount of energy to go from 100deg liquid to 101deg gas...?
So going shopping i see lots of distillers like this:
Considering that the kettle holds 1kg, id need 672000kj to evaporate it all.
But I often wonder what if i move the condenser like this so that the steam inside transfers heat to the water that needs it, thus recycling almost all the energy. but I have seen no setups like this which leads me to believe there is a flaw to my plan. Can anyone see it?