Question

Match the following : 1. Industrial sewage a. Clorination
treatment 2. Domestic sewage b. Digestion
treatment
3. Disinfection c. Alum 4. Loading process d. API-oil water separator

Answer 1

Answer:

Right clearly ............

Answer 2

Answer:

1. Industrial sewage treatment→ d. API-oil water separator

2. Domestic sewage treatment→ b.digestion

3. disinfection→ a.chlorination

4. Loading Process→ c. Alum

Explanation:

• The API-oil water separator is a device designed especially for the separation of oil from suspended solids in wastewater effluents of various chemical industries such as petrochemical plants, chemical plants, natural gas processing plants, etc.

• Domestic sewage refers to the sewage of organic and natural sources which are handled through a well-established technology called anaerobic digestion by microorganisms.

• Chlorination is a disinfection method, often used to disinfect or kill germs in drinking water by adding chlorine.

• Alum or potash alum is used to fast the loading process as it chemically reacts with the heavy particles in a solution and settles the heavier particles down.

Hence the correct order of matching is-

1. Industrial sewage treatment→ d. API-oil water separator

2. Domestic sewage treatment→ b.digestion

3. disinfection→ a.chlorination

4. Loading Process→ c. Alum