ENV100Y5 Lecture Notes - Lecture 55: Electronic Waste, Eutrophication, Heavy Metals
69
ENV100Y5 Full Course Notes
Verified Note
69 documents
Document Summary
The beare road landfill: making good use of old garage. 1968-1983: the beare road pit received municipal garbage from toronto. 1996: began to collect the methane-rich gas being generated by the decomposing garbage (lfgte, landfill gas-to-electricity) Shoreline of lake was bigger than the current, existing shoreline. Gravel shoreline goes a little bit more out. Waste management is changing in the throwaway age . Consumption and waste generation increase with income and with urbanization. Waste in canada has increased over time with growth in population and gdp. Changes in quantity and types of waste. Emerging categories of waste: hazardous, nuclear, and military waste, and now e-waste. The nature of materials and packaging has changed substantially from 100 years ago. Waste management is changing: both quantity and composition. Historical: cloth, natural fibre, plant material, wood. Modern packaging materials are durable and degrade much more slowly. Plastic bags: 1 second to produce, 20 minutes in use, 400 to 600 years to break down.
