Reverse osmosis, Biology

Assignment Help:

Ordinary osmosis cannot be used to purify water. If the applied pressure exceeds osmotic pressure then water starts moving from solution side to pure solvent side. This is reverse osmosis, by which pure water is squeezed out of impure water.

Advantage: this process removes lead, calcium, magnesium, sodium, chloride, nitrate, sulphate, etc.

Disadvantages: it requires large volume of water. It may take as much as 90 gallons of water to recover 5 gallons of usable water.

 

 


Related Discussions:- Reverse osmosis

Active listening - counselling skills used in diabetes, Q. Active Listening...

Q. Active Listening - counselling skills used in diabetes? Every day we listen to many things, may be not with any intention or paying attention to the words, speech etc. For i

What is the climax stage of an ecological succession, Q. What is the climax...

Q. What is the climax stage of an ecological succession? The climax stage is the stage of an ecological succession in which the community of an ecosystem turn into stable and d

Does each amino acid have a central carbon, Q. Does each amino acid have a ...

Q. Does each amino acid have a central carbon? To which organic group is that central carbon bound? A carboxyl group -NH 2 , an atom of hydrogen - COOH, an amine group-H and a

Neurites, NEURITE S - The processes of neurons are called neurites. Th...

NEURITE S - The processes of neurons are called neurites. These are of two types: dendrites or dendrons and an axon or axis cylinder or neuraxon. (a)      Dendrites (Den

Evaluate the net energetic gain of the process, Q. How many ATP molecules a...

Q. How many ATP molecules are made after the aerobic respiration and what is the net energetic gain of the process? After aerobic respiration 38 ATP molecules are made with the

Give a detailed account on central nervous system of frog, Question 1 Iden...

Question 1 Identify the specimen, class to which it belongs and write the salient features of that class.                                               Question 2 Write

Echinoderms, simplest way to learn their classifiction

simplest way to learn their classifiction

The digestive system, fat digestion requires two steps, what are the steps ...

fat digestion requires two steps, what are the steps and what enzymes are use to accomplish

Patient after cardiac transplant, Patient after cardiac transplant ...

Patient after cardiac transplant The major focus of medical and nursing care after transplantation is to prevent early identification of rejection so that appropriate

Cytosketal mechanism, Cytosketal Mechanism There are two co-ordinate ...

Cytosketal Mechanism There are two co-ordinate processes in the cleavage (or cell division) that is displayed in Figure. Karyokinesis The mitotic division of nucleus

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd