Electrodialysis, Biology

Assignment Help:

This method is used for the desalination of water i.e., for the removal of dissolved mineral salts, acids, alkalis and also the radioactive substances from the effluents. Electro dialysis is performed in a multi-chamber membrane apparatus, known as electrodialyser, under the influence of electric current.

An electrodialyser is divided by alternating cation exchange and anion exchange membranes into concentrating and desalinating chambers.

These members have fixed charge-negative or positive-whereby they become impermeable to either anions or cations. Under the influence of electric field the cations motion to the cathode penetrate through the cation exchange membranes and retained by anion exchange membranes while the anions moving to the cation exchahge membranes and are retained by cation exchange resins . As a result, the ions of both the charges are removed from one row or chamber and desalinated water from the other.

This technique is useful for the production of fresh water on arid-coastal regions.  In Japan, electrodialysis eg sea-water is the principal source of salt.

 

 


Related Discussions:- Electrodialysis

Which are the phases of the menstrual cycle, Which are the phases of the me...

Which are the phases of the menstrual cycle? The menstrual cycle is separated into two main phases: the follicular (or menstrual) phase and the luteal (or secretory) phase.

Explain adverse effects of stavudine, Explain Adverse effects of Stavudine ...

Explain Adverse effects of Stavudine Fatal lactic acidosis may happen more frequently with stavudine than with other NRTIs. Serum aminotransferase activity may enhance with sta

What do you mean by alzheimer''s disease, Q. What is Alzheimer's disease? ...

Q. What is Alzheimer's disease? The Alzheimer's disease is a degenerative disease of the central nervous system in which the patient has progressive dementia and alteration of

Physical properties of protoplasm, What is the physical experiment that sho...

What is the physical experiment that show that the protoplasm has contractility?

Who is fruits useful for diabetics patients, Fruits Diabetics should ha...

Fruits Diabetics should have fruits every day. Be careful to select fruits and fruit juices, citrus fruits, such as oranges, grapefruit should be included. Tell them to eat fru

Explain the law of segregation, Explain how the events of meiosis account f...

Explain how the events of meiosis account for the law of segregation and the law of independent assortment. In meiosis, the two alleles of every gene are segregated when the tw

Why d scientists pick hydrogen as the basis for mri scanning, Why d scienti...

Why d scientists pick hydrogen as the basis for MRI scanning? Name of the human body that do not appear in an MRI scan. Explain thermal stratification? How does thermal stratifi

Explain process of rice milling, Rice milling Rice milling involves the...

Rice milling Rice milling involves the following processing steps: rough rice (paddy rice) → hull removal  →  brown rice  → polishing to remove the bran coats (fruits and seed

Oil seed meals as source of limiting amino acids, Oil seed meals as source ...

Oil seed meals as source of limiting amino acids Generally ruminants are not perceived to have a requirement for essential amino acids as the rumen microbes can synthesis esse

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