Wastes
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What is Waste?
discarded or rejected material from human activities and other processes.
What are 5 types of wastes?
Solid, Liquid, Gas, Hazardous, Special.
Give the 2 types of solid waste.
Biodegradable, Nonbiodegradable.
___ wastes is capable of being DECOMPOSED by microorganisms; ____ wastes cannot be degraded quickly through normal means.
Biodegradable, Non-biodegradable.
These are wastes in liquid form. Can flow into environment.
Liquid wastes.
What are Gas Wastes?
Gaseous material due to be discarded.
What are 4 types of hazardous wastes?
Toxic, Flammable, Corrosive, Reactive.
It can cause INJURY or DEATH when inhaled or ingested.
Toxic waste.
It can BURN skin on contact and can ERODE away surface of materials.
Corrosive waste.
What is a reactive waste?
It can react with other substances to produce TOXIC VAPOR or explosions.
It can easily IGNITE and burn rapidly.
Flammable.
What are special wastes?
Need unique regulatory requirements for disposal. Ex. Clinical wastes and asbestos.
Wastes can be caused by ___ or originates from the _____ naturally.
humans, environment.
2 causes of waste.
Natural, Anthropogenic.
What is a natural waste?
Comes from the environment.
Waste produced by humans.
Anthropogenic.
___ and ___ development play a role in the amount of wastes generated by countries.
Demographics, Economic development.
What are the 5 types of Anthropogenic waste?
Residential, Agricultural, Commercial, Mining, Industrial,
What is a residential waste?
Wastes from residential areas. Commonly disposed of by the government. Referred to as the Municipal Solid Wastes (MSW).
____ sources generate ORGANIC wastes such as plant and animal materials. Examples; fertilizers and pesticides.
Agricultural.
Sources include supermarkets, restaurants, commercial buildings, hotels, auto mechanic workshops, etc.
Commercial.
What is a mining waste?
Include the MINE TAILINGS which are the waste left after ore extraction from the rock, harmful gasses, and overburden materials.
An example source of this is a power plant. It consists of materials like concrete, metals, plastic, solvents, and hazardous wastes such as paints and asbestos.
Industrial.
Various regions across the globe generate varying amounts of wastes every year due to varying levels of ____ and _____ __ _________.
income, degree of industrialization.