Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — May 2014 — 04-Env-A4 / Water and Wastewater Engineering. 3 hours duration; closed book with one aid sheet written on both sides; an approved calculator is permitted. Question 1 is compulsory; any three of the remaining four questions constitute a complete paper (only the first four of Questions 2–5 in the work book are marked); all five questions are solved below for completeness. Each question is worth 25 marks.
Reference texts. Metcalf & Eddy, Wastewater Engineering: Treatment and Resource Recovery (5th ed.); MWH's Water Treatment: Principles and Design (3rd ed.); Davis & Cornwell, Introduction to Environmental Engineering (6th ed.); Guidelines for Canadian Drinking Water Quality (Health Canada); Canadian Council of Ministers of the Environment (CCME) water-quality guidelines.
