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Sewer systems

10 articles

Drain cleaner

Drain cleaner, also known as drain opener, is a corrosive or enzymatic product that clears drain blockages with sulfuric acid, sodium hydroxide, oxidizers, or slow-acting enzymes, and is among the most dangerous products in households.

Fresh Kills Landfill

Fresh Kills Landfill was a municipal landfill on Staten Island, New York City, operating from 1948 to 2001 and once the largest in the United States.

Manhole

A manhole, also known as a maintenance hole or utility hole, is an access point to an underground utility network, most commonly a sewer, used for inspection, maintenance, and ventilating sewage.

Manhole cover

A manhole cover, sometimes called a personhole cover, is a removable cast-iron plate set flush in the street over an access shaft to sewers and other underground utilities.

Northern Outfall Sewer

The Northern Outfall Sewer is a major brick sewer in east London, built between 1860 and 1865 under engineer Sir Joseph Bazalgette as part of London's Main Drainage.

Paris sewer system

The Paris sewer system is a network of about 2,600 kilometers of underground conduits that collects and evacuates the wastewater and rainwater of the French capital.

Sanitary sewer

A sanitary sewer, also called a foul sewer, is a buried pipe network that carries domestic and industrial wastewater to a treatment plant, deliberately excluding stormwater runoff.

Separate sewer system

A separate sewer system collects wastewater and stormwater in two distinct pipe networks: sanitary sewers send sewage to treatment, and storm sewers carry runoff to waterways.

Sewerage

Sewerage, also called a sewage system, is the entire infrastructure that collects, treats, and disposes of wastewater, as distinct from the individual sewers that make it up.

Vacuum sewerage

Vacuum sewerage is a wastewater collection method that moves sewage through sealed pipes by air pressure, suited to flat terrain and high groundwater, first employed in Stockholm in 1959.