What is reverse osmosis?

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Discover the intriguing process of reverse osmosis!

Reverse osmosis (RO) forces water, at high pressure, through thousands of pressure vessels that contain semi-permeable membranes to remove salt, particles and other minerals.

Seqwater

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I feel like people misunderstand the summarizing statement at the end. 82% of the original water source becomes the purified water. That means 18% of the original water source is contaminated and successfully separated from the now purified water. There is an 82% yield.

Xurs.suspicious.smoothie

Had seen lots of video but none of them told where from waste water comes.. and i was still wondering. .. thank you for this.

prasadkarlekar

Thank you for sharing this. I have been really interested in Reverse Osmosis since I got to know about AAA Water Systems. They have amazing water filtration service and Reverse Osmosis is also a procedure they use.

henrywilson

reverse osmosis works by forcing water
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through a special plastic membrane sheet
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to remove compounds such as salts
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organic compounds microorganisms viruses
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and pharmaceuticals roles of membrane
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sheets are wound into cylinder shaped
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elements there are several elements
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inside each long pressure vessel as
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water enters the vessel it flows over
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the membrane surface as it moves from
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one end of the vessel to the other the
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membrane layer is extremely thin it
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allows water to pass through or permeate
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while preventing other compounds from
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passing through membranes remove
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molecules based on their size shape and
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charge generally contaminants larger
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than water molecules will not pass
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through including most chemical
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contaminants and all microorganisms such
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as viruses and bacteria to streams of
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water are produced pure clean water or
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permeate flows across the membrane
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sheets and departed through the membrane
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layers to the inside core tube water
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that does not permeate becomes more
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highly concentrated with salts and other
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substances this water is called
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concentrate for pure permeate water
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flows out the core tube and one end of
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the pressure vessel and the concentrate
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water flows out another outlet the
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concentrate water can then flow into
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other pressure vessels for the same
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process to happen again so even more
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pure permeate water can be recovered
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about 82 percent of all the source of
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water becomes purified wate

omori

Thanks a lot it is simple and clear explain, I am working as engineer at the RO plant and I have been so intersted for water treatment process.

azizh

This practical one is totally different from what we saw firstly about RO, a tank with membrane in the middle and giving pressure on side pushing the pure water to the other side. Actually the only energy consumption is from the water pump.

dumo

This was short and sweet and informational thanks 👍👍

varijavishwanath

@Seqwater
How does spacer force/deflect the input water on membrane with adequate pressure

adeyemibabatunde

Cold Steam the efficient way to use heat sources to produce electricity and or distilled water explained from basic concept to employment.
Two open containers one full of water the other empty connect them at the bottom and water will reach an equilibrium 50 50. If one is sealed except for the connection the other will remain empty because of the vacuum created in the sealed container.
Gravity will overcome this vacuum if the containers are taller than 30 feet.
If the tanks are 40 feet tall the tanks will reach an equilibrium of water levels at 30 feet leaving ten feet of hard vacuum in the sealed tank. This makes a vacuum pump set we need two of them if we were going to distill water as the cold side open tank is used to collect the distilled water from it as the continuous input of water needs to go somewhere.

Each sealed tank has four valves three at the top two of those on opposite sides (B&C) one at the very top (D) one at the bottom on the side (A), water-based vacuum pump operations are, Close bottom tank valve A and top tank valve C. Open top tank valve D. Fill sealed tank through top side valve B. Close valve B and D when full. Open bottom valve A.
This primes the system to let the warm water in that will vaporize and run through the system when you partially reopen valve B (to control flow rate) and open valve C to its fullest.

For only power generation need one pump set and one vacuum tank so we can have a Hot side and a Cold side one to boil the water and one to have the low pressure/vacuum to draw the steam in through the turbine then the cooling coils then to the tank.
At the bottom of the cold side, tank is a return pipe with the one way valve to the heat source the one-way valve prevents expansion back to the cold side and as the hot side vacuum chamber is the only outlet for the expanding water and it is drawn by the vacuum the cycle proceeds.

You can combine the two and get power generation and distilled water keeping the return line from the power generation system will let you switch if you don't need distilled water on a continuous basis in large quantities.
I am going to make one feel free to make one as well it is open source.

Barskor