What is reverse osmosis process?/RO water treatment (Desalination)
ฝัง
- เผยแพร่เมื่อ 29 ก.ย. 2018
- Explains osmosis and reverse osmosis process in detail. Removal of salts from seawater/brackish water. Desalination. Demonstration of reverse osmosis. water softening, water purification. The materials used in the semi permeable membrane. The advantages and disadvantages of this method is also discussed.
Subscribe for more videos !!!.
Desalination -Reverse Osmosis
You will be able to define desalination, osmosis and reverse osmosis.
You will be able to list out the different methods of desalination.
You will be able to describe the process of reverse osmosis with a neat diagram.
You will be able to mention the advantages and disadvantages of reverse osmosis process.
Removal of salts from water is known as desalination.
Methods of desalination
Thermal distillation (Thermal)
Reverse osmosis (Pressure)
Electrodialysis (Electrical)
Osmosis
When two compartments containing solutions of different concentrations are separated by a semipermeable membrane, the solvent moves from lower concentration to higher concentration side.
Reverse Osmosis
When two compartments containing solutions of different concentrations are separated by a semipermeable membrane and hydrostatic pressure greater than osmotic pressure is applied on the concentrated side the solvent moves from higher concentration to lower concentration side.
(When brackish water (saline water) and pure water are separated by semipermeable membrane, water moves from saline to pure water compartment)
Advantages of reverse osmosis
The process is simple, cheap and reliable.
It not only removes the ionic salts but also the non-ionic, colloidal matter and high molecular weight organic matter.
Although the installation cost is high, the maintenance cost is low.
The membrane can be replaced in 3-4 minutes and hence can get uninterrupted water supply.
Limitations/Disadvantages of reverse osmosis
The membrane cost is high.
Membrane should withstand pressure of 20-100 atm.
Thanks a lot mam.. your video was very simple with lots of information everyone can easily understand .. thanks again .
Thank you.
@@RevathiPurushothaman happy new year
@@niteeshtechminister126 Thank you very much. Wish you the same.
One minute silence for those who dislike this valuable video😔
Ma'am really I haven't words to say thank you for your such kind of explanation method.I was given an assignment on reverse osmosis water desalination system.
It's my pleasure. Thank you very much for your nice words.
Thanks fa the video mam..
thanks a lot for sharing the information about the RO
Most welcome.
Beautifully defined
Thank you.
Nice interpretation of process
Thank you
Very useful info thanks
Thank you.
Clear cut explanation 👍
Thanks for your compliments.
Superb class...
Thank you.
Thank you ma'am this is very helpful for my exams
It's my pleasure.
Clear explanation
Thank you.
The Way Of Explaining is Outstanding mam👌
Thank you very much.
@@RevathiPurushothaman mam
Just today I completed my sem exam, luckily this process Asked in Exam Qpaper
I didn't read about RO process in books I simply watched your video and Answered the question
Thanx once again 😊
Thank you
It's my pleasure.
Well explained mam with simple explanation thnku mam🙏
Thanks. It's my pleasure.
Your Teaching is very good madam
Thank you so much.
Ma'am very good video.
Thank you.
Really nicee
Thank you.
Thanku ma'am 🙏
It's my pleasure.
Best best video
Thank you very much.
❤ from Kerala
Thxs miss
It's my pleasure.
Thank you ma'am 😍😍😍
You are most welcome.
I am understand verry simple mam
Happy that you understood and it was simple for you
Mam please do a video on that memebrane brief work with chemicals U said..
I will try doing it.
Thank you madam
It's my pleasure.
Thankyu
It's my pleasure.
Nice
Thanks
please, can you make a video about the microplastics and how to extract it from rivers and oceans?
i will try.
Excellent explanation madam
Thank you so much.
Thanks🤠🤠
Most welcome.
Good cls
Thank you.
Wow very informative mam 👏
Thank you. Nice that it helped you.
@@RevathiPurushothaman you're welcome 😊
Nice mam
Thank you.
Thanks mam
Most welcome.
Super mam
Thank you very much.
Ma'am, would you like to make a video on Nanotubes that are used to desalinate sea water please??
I will try.
Thanks madam
Most welcome.
Water me se flouride remove hua ki nahiii kaise Pata Karen??? Kon si technique apply Karen???
👍
Thanks.
Mam dusre ke video me osmosis ki definition ulti hai usme higher concentrate to lower concentrate batate hai
Yeh explanation correct hai.
People have made use of reverse osmosis but what about straight osmosis? Wouldn't it be possible to use an electrolyte mixture (like Gatorade powder) to draw water through a semi permeable membrane? Pond and river water could be made safe to drink without all that pumping that normal filters require.
On straight osmosis, water will move from lower concentration to higher concentration. Reverse osmosis is mainly used to reduce the salt (minerals) content in the water.
@@RevathiPurushothaman but it is also used to remove bacteria and other contaminants.
why reverse osmosis can be used for softening as well as desalination but not ion exchange process???
Ion-exchange process also remove all salts, but in form of ions.
Hi mam. I have been trying to understand this process by reading a few blogs and other materials. Your video made things crystal clear. Thank you very much mam. I do have a few more doubts regarding this process and other water treatment options. Could you please share me your official email ID so that i can email you my doubts. Thank you in advance mam.
Thank you very much.
Mam super maa
Thank you very much.
Can u send those pdfs???
Nice Mom
Thank you.
Relly thanks for this video mam I understood completely
Happy that you understood. Thank you.
Madam explain the brackish water please
It has more salinity, but not as much as that of sea water. So it can be treated easily to get fresh water.
Colloidal silt ruins the membrane actually
Another disadvantage is wastage of arround 70-80% of water.
It leads to Water crisis in future.
Ok
Saline: SAY-leen
Can you send this pdf
Check my blog.
My exm is in 1 hr
Thanks
Hindi ma bolna ma kya problem hai mam ?
Muje Hindi achi nahi malum.
Nice
Thank you.