Walden PUBH6034 Module 4 Quiz Latest/Walden PUBH6034 Module 4 Quiz Latest

Question 1 

Metals present in municipal wastewater may still be present in treated sewage sludge; __________. 

cause damage to the municipal works
interfere with coagulation and flocculation
kill bacteria used in wastewater treatment
a and c but not b
all of the above

Question 2 

Historically, the use of chlorine bleach has made the pulp and paper industry an important source of __________ contamination. 

dioxin
chromium
polychlorinated biphenyls (PCBs)

Question 3 

Chlorination of drinking water is highly effective at killing __________. 

bacteria
protozoa
viruses