Garbage disposal unit

Waste disposer

Garbage Disposal Unit

A garbage disposal unit (also known as a waste disposal unit, garbage disposer, or garburator in Canada) is an electrically operated device installed under a kitchen sink between the sink's drain and the trap which shreds food waste into pieces small enough—generally less than 2 mm (0.079 in)—to pass through plumbing. The use of garbage disposal units contributes to the reduction of organic waste in landfills, thus minimizing environmental impact.

History

The concept of the garbage disposal unit was invented in 1927 by John W. Hammes, an architect from Racine, Wisconsin. He designed the unit to make kitchen cleanup easier for his wife. The device was patented in 1935 and Hammes founded the InSinkErator company, which still remains a leading brand in the market.

Design and Operation

Garbage disposal units consist of a steel shredder that grinds food waste into small particles. These units are powered by an electric motor that can be either batch-fed or continuous-feed. Batch-fed models require the user to insert and turn a special stopper to activate the unit, providing an added safety feature to prevent accidental operation. Continuous-feed models operate as long as the power switch is in the "on" position, allowing for the disposal of waste while the unit is running.

Installation and Maintenance

Installation of a garbage disposal unit involves plumbing and electrical connections. It is typically mounted directly under the kitchen sink and connected to the drain. Maintenance of the unit includes running cold water during operation to solidify any grease or oils that can be ground up and flushed through the system, and avoiding the disposal of hard or fibrous materials that can jam the unit.

Environmental Impact

The environmental impact of garbage disposal units is a subject of debate. Proponents argue that they reduce the amount of waste sent to landfills, thereby decreasing methane emissions. Critics, however, claim that the increased water usage and potential strain on sewage treatment facilities outweigh these benefits. Additionally, the disposal of food waste through sewage systems can lead to increased nutrient loads in water bodies, potentially harming aquatic ecosystems.

Regulations

The use of garbage disposal units is regulated in some areas due to concerns over sewer system capacity and functionality. For example, their use has been restricted or banned in certain municipalities. Users are advised to check local regulations before installing a garbage disposal unit.

See Also

• Kitchen appliance
• Environmental impact of waste
• Plumbing