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18-Env-A6 Solid Waste Engineering and Management · December 2014

Question 3 of 29: Important Issues in System Operation

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

Notes on this paper

National Examination, December 2014 — 04-Env-A6 / 18-Env-A6, Solid Waste Engineering and Management. 3 hours duration, closed book, one non-communicating calculator, one letter-sized aid sheet (both sides) permitted. All 29 questions constitute a complete paper (100 marks total).

Reference texts: Tchobanoglous, Theisen & Vigil, Integrated Solid Waste Management: Engineering Principles and Management Issues; Vesilind, Worrell & Reinhart, Solid Waste Engineering; Davis & Cornwell, Introduction to Environmental Engineering (6th ed.); CCME, Guidance Document on Landfill Gas Management; Canadian Environmental Protection Act, 1999.

Note on source parsing

This paper prints marks IN FRONT of the question number on every line (e.g. "5 1. What are the elements…", "4 16. All 29 questions are answered in full.

Question 3: Important Issues in System Operation (5 marks)

Question text not reproduced: the examination questions are © Engineers and Geoscientists BC. Open the official past paper (linked at the top of this page) to read the question, then follow the worked solution below.

(1) Worker health and safety — collection and processing involve heavy equipment, sharp/hazardous items and biological hazards, requiring PPE, training and injury-prevention programs. (2) Cost and financial sustainability — capital and operating costs must be recovered through tipping fees, taxes or a mix, and system design decisions are frequently cost-driven. (3) Regulatory compliance — permits, emission limits, leachate discharge standards and reporting obligations under provincial/federal environmental legislation. (4) Public acceptance and communication — siting new facilities and maintaining participation in diversion programs both depend on ongoing community engagement. (5) Environmental protection — controlling leachate, landfill gas, odour, vectors, litter and air emissions so the system does not create the pollution problems it is meant to prevent.