Question

Method to control air pollution include the following except
(A) Scrubber
(B) Electrostatic precipitator
(C) Electrodialysis
(D) Catalytic converter

Answer 1

Various methods have been developed to regulate and control the air pollution such as scrubber, electrostatic precipitator and catalytic converter. Apart from this the electrodialysis technique is used to charge the membranes through electrical potentials and is not utilized to control the air pollution.

Complete Answer:
The scrubber method is called a gas absorption method and it is an expensive technique. Generally it is used to eradicate the volatile organic components present in the atmosphere. This method helps to eradicate the unwanted particles present in the environment.

The minute particles or very minute particles are generally removed with help of electrostatic precipitator technique through electrostatic forces. The electrostatic precipitator technique is also recognized as an electrostatic air cleaner method. This technique is also used for the removal of particular types of particulate matter from the discarded gases from the industrial facilities.

The catalytic converter technique utilizes platinum or lead which is adhered to some type of ceramic materials, and these catalytic materials specifically convert the gaseous compounds into water vapor and carbon dioxide. The electrodialysis technique is highly efficient to segregate the charged ions from an aqueous media.

Nowadays, the electrodialysis technique is mainly applied for removing the salinity of the sea water as well as brackish water. This technique is mainly used for transportation of the salt ions from one medium (aqueous or solution) by ion-exchange membranes to another medium (aqueous or solution) under the presence of electric current.

Hence the correct answer is option C.

Note: It is noted that the catalytic converter is a type of exhaust emission device which assists the reduction of toxic polluting matters into a toxic-free component from an internal combustion machine.