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23-Chem-B2 Environmental Engineering: May 2014

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Engineered air pollution control methods, and nitrogen/phosphorus management in sewage effluent
  2. Question 2 Control technologies for particulates, toxic gases, and odorous vapours
  3. Question 3 Groundwater contaminant characterization, BOD testing, and sedimentation tank design
  4. Question 4 pH control, ion exchange, reverse osmosis design principles, and activated sludge process design
  5. Question 5 Gaussian plume dispersion of a coal-fired power plant SO₂ stack
  6. Question 6 Photochemical smog, halogenated-hydrocarbon control, and odour control
  7. Question 7 Contaminated soil remediation, and measurement technique quality (sensitivity, reliability, accuracy)

Start with Question 1 →

Paper format. EGBC 04-Chem-B2 Environmental Engineering, May 2014, 3 hours, closed-book with a candidate-prepared double-sided 8½×11-inch aid sheet. Seven problems, each worth 20 marks; candidates attempt any five, and only the first five answers in the workbook are marked. All seven problems are solved below as a complete study resource.

Reference texts: G. Tchobanoglous, F. L. Burton & H. D. Stensel (Metcalf & Eddy), Wastewater Engineering: Treatment and Reuse (4th ed., McGraw-Hill) — BOD kinetics, nutrient removal, activated-sludge design, sedimentation design; M. L. Davis & D. A. Cornwell, Introduction to Environmental Engineering (5th ed., McGraw-Hill) — drinking-water treatment, air pollution control, ion exchange, reverse osmosis, soil remediation, air quality modelling; C. D. Cooper & F. C. Alley, Air Pollution Control: A Design Approach — particulate/gas/vapour control, thermal/catalytic oxidation, odour control; S. P. Turner, Workbook of Atmospheric Dispersion Estimates (2nd ed., CRC Press) — the Gaussian plume model and Pasquill–Gifford stability classes. Canadian context follows the Canadian Environmental Protection Act (CEPA 1999), the Guidelines for Canadian Drinking Water Quality (Health Canada), the Canadian Council of Ministers of the Environment (CCME) Municipal Wastewater Effluent guidelines, and provincial air/water permitting practice (e.g. BC Environmental Management Act and Metro Vancouver air-quality bylaws).