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

 

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