Question

a new wastewater treatment plant opens in an area where raw sewage used to be dumped directly into a bay. what type of pollution will be reduced the most by the new plant?
a. toxic
b. sediment
c. nutrient
d. bacterial

please select the best answer from the choices provided

a
b
c
d

Explanation:

Raw sewage contains a large number of bacteria from human waste. A wastewater treatment plant is designed to remove these bacteria (along with other pollutants, but bacterial pollution from sewage is a primary target). Toxic pollution is from chemicals, sediment from erosion, and nutrient pollution from excess nutrients like nitrogen/phosphorus (though sewage has nutrients, the main reduction from sewage treatment is bacterial). So the new plant will reduce bacterial pollution the most.

Answer:

d. bacterial