Which of the following types of sewage treatment are properly matched?
A) primary--removal of pollutants particular to a given area
B) secondary--removal of oxygen-demanding wastes
C) advanced--removal of suspended solids
D) primary - removal of oxygen-demanding wastes
E) primary and secondary both - removal of pollutants particular to a given area

Question

Quizplus · Accepted Answer

Secondary treatment involves the removal of oxygen-demanding wastes through the use of biological processes. Primary treatment involves the physical removal of large solids and debris, while advanced treatment is a more advanced form of secondary treatment that can remove additional contaminants such as nitrogen and phosphorus. Option A is incorrect because primary treatment does not remove pollutants from a given area. Option C is incorrect because advanced treatment is typically used for the removal of nutrients rather than suspended solids. Option D is incorrect because primary treatment does not involve the removal of oxygen-demanding wastes. Option E is incorrect because primary treatment alone does not remove pollutants from a given area, and secondary treatment alone does not remove suspended solids.

Which of the Following Types of Sewage Treatment Are Properly