EMA Lecture 11 Flashcards
What does API stand for?
Active Pharmaceutical Ingredients
How many APIs are used worldwide?
More than 3,000
How are pharmaceuticals in water causing problems?
-Interact with living systems as low doses
-Stable - slow to degrade
-Constant use leads to continuous release into the environment
(Pseudo-persistent)
What size are macropollutants?
ug 10-6 - 10-3 mg L-1 concentrations
What are some examples of macropollutants?
Organic pollutants, nutrients, acid pollutants
Effects are well understood
What size are micropollutants?
pg10-12 - 10-9 ng L-1 concentrations
What are some examples of micropollutants?
Pharmaceuticals, hormones, pesticides, nanoplastics
Impact not understood
Waste water removal ineffective
What does EPPPs stand for?
Environmentally Persistent Pharmaceutical Pollutants
How can pharmaceuticals enter the environment?
-Discharge from manufacturing
-Improper disposal of medicines
-Consumer use- excretion in water
-Animal husbandry and treatment
-Use of antibiotics in food production
What is a documented effect of pharmaceutical waste?
Fish changing sex due to exposure to human sewage waste
What does protandrous mean?
Males transforming into females
What does protogynous mean?
Females transforming into males
Name four principles of green chemistry
-Waste prevention
-Safer solvents and auxiliaries
-Atom economy
-Designing safer chemicals
What are an example of some tertiary options for wastewater treatments?
UVC
PEF-UVC
PEF-UVA
How much is removed in secondary treatment?
67%