The treatment technology is similar to the process used for desalinating seawater, but recycling wastewater requires less energy and is less costly than turning saltwater into freshwater. Polhemus said the costs for purifying wastewater will probably be about half the costs of desalinating ocean water.
I call bullshit. There is no way filtering out piss, shit, vomit, dissolved pills, and drugs is any less expensive than boiling and filtering fucking seawater.
It might by the time you factor in all the environmental challenges.
When they built the desalination plant in San Diego County it got delayed by years from all the environmental challenges. Then they shut down the nuke plant they were depending on to power the thing.
Heating 10 liters of water from 20 c to 100 c takes just shy of a kilowatt/hour of energy.
You know how many liters of water a pump can MOVE with a kilowatt/hour of energy?
A fuck lot more than 10.
So while, yes, boiling and condensing water may do in one single step what would otherwise take multiple filtering stages, it simply takes so much energy to vaporize water that there's no way you can make the economics of it work. Not without limitless free heat.
The energy it takes to heat water is in kWh, not kW/h. If we're talking about actual desalinization through evaporation, don't forget the energy cost of the phase change, which is what takes most of the energy- just boiling ten liters of water already at 100 c takes another 6.27 kWh. So with the .937 you mentioned for heating from 20c to 100c, 7.21 kWh overall. Or in cubic meters of water, 721 kWh/m^3.
But actual desalinization plants recapture almost all of that energy to heat the incoming water, so the effective energy used is far less than that. According to this it's around 10–16 kWh/m^3 for multi-stage flash distillation, which is the efficient form of the evaporation process we're talking about here. But reverse osmosis is even less, at 3-4.
Description of multi-stage flash distillation from that link pasted below, because I found it interesting:
Saline water blended with recycled brine, preheated within the middle stages, is brought to working temperature (usually between 90–110 °C) with steam, in the Heat Input Section. At this point, it is transferred to the first stage, which is kept at a lower pressure than the heated saline water equilibrium pressure. Consequently, the saline water becomes partially vaporized. Steam generation removes energy from the mass of saline water, therefore cooling it to a certain extent. Furthermore, steam extraction results in higher salinity and higher boiling point in the case of the remaining saline water. The steam is transmitted to demisters, where transported droplets are eliminated, then it flows into a heat exchanger at the top of the stage. Consequently, the heat of the steam is passed over to the incoming saline water, whereby the steam cools down and condenses. By this process, the heat can be recovered with high efficiency.
limitless free heat... think someone can pull the old magnifying glass trick, ya know focusing the suns light on one point from multiple angles to heat water in a glass container with some tubing and an empty? stupid idea i know but mentioning it just in case, shame they cant do that in desert area but then you gotta buss in the water and that costs.
They won't be removing those drugs, they want a feminized and mentally ill population. Being able to recycle birth control pills in your drinking water is a feature not a flaw.
All depends on how it'll be processed but knowing CA though some diversity hire will fuck it up somewhere and give a few counties-worth of people some nice free parasites.
There's a similar system here albeit smaller scale / less intense as ours is pulled from a river that is downstream from some other cities that no doubt dump theirs into it.
Some parts of Southern California already "close the loop" to a certain extent by using treated wastewater for irrigation. They will partially treat wastewater to a degree that it's usable to eg. water landscaping and distribute it using a parallel water pipe system.
I just meant that in some other place (probably other countries) it's pretty normal to water your plants with at least gray water. Probably not the sewage itself; I don't think human poo makes great fertilizer.
Septic systems IME work pretty well for watering/fertilizing plants. The greenest part of my yard in the summer is the leach field. Of course that itself is a crude form of water treatment and not pure waste water being dumped into the soil.
Though I'm not sure I would want to eat any plants watered/fertilized by my septic system...
I call bullshit. There is no way filtering out piss, shit, vomit, dissolved pills, and drugs is any less expensive than boiling and filtering fucking seawater.
It might by the time you factor in all the environmental challenges.
When they built the desalination plant in San Diego County it got delayed by years from all the environmental challenges. Then they shut down the nuke plant they were depending on to power the thing.
Shutting down that nuke plant is so lame.. it was powering most of socal. Now energy bill is 50% more for using same amount
And I believe that plant uses reverse osmosis. Which is basically just a fancy word for REALLY FUCKING BIG FILTER.
Even they don't boil the water.
You'd be amazed.
Heating 10 liters of water from 20 c to 100 c takes just shy of a kilowatt/hour of energy.
You know how many liters of water a pump can MOVE with a kilowatt/hour of energy?
A fuck lot more than 10.
So while, yes, boiling and condensing water may do in one single step what would otherwise take multiple filtering stages, it simply takes so much energy to vaporize water that there's no way you can make the economics of it work. Not without limitless free heat.
That's where global warming comes in.
Checkmate, atheists.
The energy it takes to heat water is in kWh, not kW/h. If we're talking about actual desalinization through evaporation, don't forget the energy cost of the phase change, which is what takes most of the energy- just boiling ten liters of water already at 100 c takes another 6.27 kWh. So with the .937 you mentioned for heating from 20c to 100c, 7.21 kWh overall. Or in cubic meters of water, 721 kWh/m^3.
But actual desalinization plants recapture almost all of that energy to heat the incoming water, so the effective energy used is far less than that. According to this it's around 10–16 kWh/m^3 for multi-stage flash distillation, which is the efficient form of the evaporation process we're talking about here. But reverse osmosis is even less, at 3-4.
Description of multi-stage flash distillation from that link pasted below, because I found it interesting:
limitless free heat... think someone can pull the old magnifying glass trick, ya know focusing the suns light on one point from multiple angles to heat water in a glass container with some tubing and an empty? stupid idea i know but mentioning it just in case, shame they cant do that in desert area but then you gotta buss in the water and that costs.
They won't be removing those drugs, they want a feminized and mentally ill population. Being able to recycle birth control pills in your drinking water is a feature not a flaw.
I don't think they boil seawater. I think they pass it through some sort of membrane system.
Since that just removes salt, I assume they then have to treat it.
Huh. I guess everyone forgot about Waterton.
You vill eat ze bugs.
You vill drink ze shit.
I find it hard to be outraged. It's water. Filter it and use it.
i mean, if this can be done that's a good thing. water's water after all.
but i don't trust them to not fuck it up.
I'm sure the lib kinds who live there see this as ''progress' and ''environment friendly'' so I don't care, drink the sewage libtards.
All depends on how it'll be processed but knowing CA though some diversity hire will fuck it up somewhere and give a few counties-worth of people some nice free parasites.
There's a similar system here albeit smaller scale / less intense as ours is pulled from a river that is downstream from some other cities that no doubt dump theirs into it.
The standard way is to get fresh water from reservoirs and ultimately dump wastewater into the ocean, whether they treat the wastewater first or not.
I don't think it's common to have the system looped. Nature does that on its own.
Some parts of Southern California already "close the loop" to a certain extent by using treated wastewater for irrigation. They will partially treat wastewater to a degree that it's usable to eg. water landscaping and distribute it using a parallel water pipe system.
Now that a lot of people do . Again whether they treat the water first is the question...
They do treat it. I remember reading that it's drinkable in the sense that it's sterile and won't harm you, but it tastes salty.
I just meant that in some other place (probably other countries) it's pretty normal to water your plants with at least gray water. Probably not the sewage itself; I don't think human poo makes great fertilizer.
Septic systems IME work pretty well for watering/fertilizing plants. The greenest part of my yard in the summer is the leach field. Of course that itself is a crude form of water treatment and not pure waste water being dumped into the soil.
Though I'm not sure I would want to eat any plants watered/fertilized by my septic system...