Sample interview questions: How do you ensure the removal of organic compounds and pollutants from water sources during treatment?
Sample answer:
-
Coagulation and Flocculation:
- Adding coagulants and flocculants to water sources destabilizes organic compounds and pollutants, causing them to aggregate and form larger particles.
- The larger particles can be more easily removed in subsequent treatment steps.
-
Sedimentation:
- After coagulation and flocculation, the water is allowed to settle, allowing the larger particles to settle to the bottom of the tank.
- The settled particles are then removed from the water.
-
Filtration:
- The water is passed through a filter media, such as sand, gravel, or activated carbon.
- The filter media traps the remaining organic compounds and pollutants, producing clean water.
-
Disinfection:
- After filtration, the water is disinfected to kill any remaining microorganisms.
- Common disinfection methods include chlorination, ozonation, and ultraviolet light.
-
Advance… Read full answer
Source: https://hireabo.com/job/3_4_43/Water%20Quality%20Engineer