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EPM821S - ENVIRONMENTAL POLLUTION - MONITORING AND REMEDIATION - 2ND OPP - JANUARY 2024 |
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nAmlBIA UnlVERSITY
OF SCIEnCEAnOTECHnOLOGY
Facultyof Health,Natural
ResourceasndApplied
Sciences
Schoolof NaturalandApplied
Sciences
Departmentof Biology,
Chemistryand Physics
13JacksonKaujeua Street
Private Bag 13388
Windhoek
NAMIBIA
T: •264 612072012
F: •264 612079012
E: dbcp@nust.na
W: www.nust.na
QUALIFICATION: BACHELORof SCIENCE
QUALIFICATIONCODE: 08BOSH
COURSE:ENVIRONMENTAL POLLUTION, MONITORING &
REMEDIATION
DATE: JANUARY 2024
DURATION: 3 HOURS
LEVEL:8
COURSECODE: EPM821S
SESSION: 1
MARKS: 100
SECOND OPPORTUNITY/ SUPPLEMENTARY: EXAMINATION QUESTION PAPER
EXAMINER:
MODERATOR:
Dr. Mpingana N. Akawa
Prof James Abah
INSTRUCTIONS
1. Answer all questions on the separate answer sheet.
2. Please write neatly and legibly.
3. Do not use the left side margin of the exam paper. This must be allowed for the
examiner.
4. No books, notes and other additional aids are allowed.
5. Mark all answers clearly with their respective question numbers.
PERMISSIBLE MATERIALS
1. Non-Programmable Calculator
This paper consists of 3 pages including this front page
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QUESTION 1
(20)
a. Explain the following concepts:
a) Mitigation
(2)
b) EIA statement
(2)
c) Phytoremediation
(2)
d) Rhizofiltration
(2)
e) Industrial ecology
(2)
b. List the four activities identified as priorities for the improvement of Environmental
Impact Assessment (EIA) systems.
(4)
c. Briefly discuss the categories used to classify projects into different types of impact
categories during EIA screening.
(3)
d. Explain the concept of "the good, the bad, and the ugly" with respect to ozone. (3)
QUESTION 2
[20)
2.1 Discuss (with reactions) the use of wetlands as technique of choice for acid drainage (AD)
prevention.
(6)
2.2 Describe the process of wastewater treatment in an aerobic activated sludge technology
(with generic reactions).
(8)
2.3 What are the criteria that must be fulfilled by a sampling system for air quality analysis?(6)
QUESTION 3
[20)
3.1 It has been reported that temperature stabilization at or below 2°C above pre-
industrial temperatures should be the goal of climate change policy. Discuss what
could be the consequences of trespassing this threshold value.
(5)
3.2 Name and discuss the categories of salt affected soils. How does high salinity affect
plant growth and finally, discuss how the salt affected soils is reclaimed.
(15)
Environmental Pollution, Monitoring & Remediation (EPM821S)
2°• Opportunity January 2024
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QUESTION4
[20)
4.1 State two principles of Green Chemistry and discuss their importance in our society.
(10)
4.2 Discussthe following based on the principles of Green Chemistry.
i. The selection of a solvent for a product synthesis.
(5)
ii. The choice of reaction conditions in chemical reactions.
(5)
QUESTION 5
[20)
5.1 What is catalysis? How does catalysis contribute to the principles of Green Chemistry?
Describe the attributes of the two major groups of catalysis.
END OF QUESTION PAPER
Environmental Pollution, Monitoring & Remediation (EPM821S)
2nd Opportunity January 2024
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