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7200337
Managing Our Waste
Descrição
A mind map that explains concepts associated with managing waste
Sem etiquetas
environment
science
waste management
waste
environmental studies
Mapa Mental por
Ashley Sadler
, atualizado more than 1 year ago
Mais
Menos
Criado por
Ashley Sadler
mais de 7 anos atrás
229
0
0
Resumo de Recurso
Managing Our Waste
Types of Waste
Waste = any unwanted material or substance that results from human activity or process
Municipal solid waste = nonliquid waste from homes, insititutions, and small businesses
Industrial solid waste = waste from production of goods, mining, agriculture, petroleum extraction, and refining
Hazardous waste: solid or liquid waste that is toxic, chemically reactive, flammable, or corrosive
Wastewater: Used water from households, businesses, or industry
Waste stream: the flow of waste as it moves from its sources toward disposal destinations
Goals of Waste Management
Minimize the amount of waste generated (source reduction)
Use materials efficiently,
consume less, buy goods will less packaging
use goods longer
Source reduction: Preventing waste in the first place
Recover waste materials and recycle them
Recovering or removing waste from the waste stream
Recycling: collects and sends used goods to facilities to manufacture into new goods
Composting: recovery of organic waste by converting it into mulch or humus through decomposition
Dispose of waste safely and effectively
Current Methods:
Most industrialized nations now bury waste in lined and covered landfills or burn it in incineration facilities
Sanitary landfills: waste buried in the ground or piled in large, engineered mounds to prevent contamination and health threats
Landfill gas: a mix of gases that consists of 50% methane
Incineration: A controlled process that burns garbage at very high temperatures
Materials recovery facilities (MRFs): workers and machines sort, clean, shred, and prepare items
Anexos de mídia
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5ac572cd-ad81-4d4e-a854-958ca498d5be (image/jpg)
ad776ac9-6a44-4470-9337-c880b2aae3fb (image/jpg)
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