1 / 15

Waste Management

Waste Management. Lesson 3. Learning Goals. In this activity you will: Learn the process, benefits, and types of composting; Study the importance of reduce, recycle, reuse, and recover; Obtain tips on how to reduce wastes;

urit
Download Presentation

Waste Management

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Waste Management Lesson 3

  2. Learning Goals • In this activity you will: • Learn the process, benefits, and types of composting; • Study the importance of reduce, recycle, reuse, and recover; • Obtain tips on how to reduce wastes; • Reflect on your consumption habit, the amount of waste you generate, and the ways that you can do to reduce the waste; • Conduct a survey on how people manage their waste;

  3. Waste Management • Waste Disposal: Proper disposition of a discarded or discharged material in accordance with local environmental guidelines or laws. • Waste Diversion: prevention and reduction of generated waste through source reduction, recycling, reuse, or composting • Waste Generation: Quantity of materials or products that enter a waste stream before composting, incinerating, landfilling, or recycling

  4. Most garbage in Canada is disposed in landfill or dump sites • Toxins seep through the soil and spread to the water system resulting in water pollution • Organic waste in landfills generate methane which causes climate change

  5. Composting • Composting is a natural process where micro-organisms transform waste materials into soil-like product called humus • Composting involves organic materials like kitchen scraps, paper, leaves, yard waste, crop waste and animal refuse. • The process is comprised of 4 main elements: micro-organisms, organic materials, water, and oxygen • Temperature regulates the speed of the process. The higher the temperature, the faster the composting will be.

  6. Did you know? • Organic wastes make up almost a third of our total garbage! • 38% of Canada's total methane emissions come from landfill sites. • Some chic restaurants are using worm bins to eliminate their garbage and provide free compost for their locally grown garden vegetables!

  7. Benefits of Composting • Reduction of waste to landfills and less methane • Reduces the amount of waste going to landfills. The reduction in organic waste decreases the production of methane, a greenhouse gas.

  8. Benefits to Composting • Returning carbon to non-living environment • Composting helps to bring back carbon to the non-living environment by decomposing plant and animal matter. Carbon is a crucial element of all living things. It exists as carbon dioxide in the atmosphere, oceans, and in fossil fuels. Through composting, organisms break down dead plant and animal matter, returning carbon to the non-living environment.

  9. Benefits of Composting • Production of fertile soil • Composting produces fertile soil for your gardens and yard. It replenishes the top soils that are lost from agricultural land. However, do not use composted humus as potting soil, as it may burn your plants. You have to mix it with peat moss or soil.

  10. Types of Composting • Small scale • As an individual, you can compost the food and yard wastes in a container through "wormy composting". All kitchen scraps like vegetables and fruits and their peelings, tea bags, egg shells and yard wastes such as plant trimmings, wood shavings, and leaves can be put in the compost container.

  11. Mid scale • Mid scale composting applies to an on-site collection of organic waste especially in an apartment building, hospital, and office building. The advantage is that you do not need to transport the waste to composting sites.

  12. Large scale • Large scale composting, like centralized composting, involves the collection and transportation of wastes to a special facility where they will be prepared and processed into compost. Organic waste from restaurants, shopping malls, residential areas, or food manufacturers will be picked up and processed in the facility. The municipal government operates and promotes this type of composting.

  13. The Four Rs (Reduce, Recycle, Reuse, Recover) Recover  Recover energy from wastes. This can only be done in industries. Dump sites collect methane that is generated from garbage and convert it to energy.

  14. Hazardous Materials • Household hazardous materials include: • Household cleaners and detergents • Paints and solvents • Motor oil and windshield washer fluid • Batteries • Prescription medicine and syringes • Pesticides/herbicides • Gasoline • Propane tanks • Pool or spa chemicals

More Related