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In civil engineering, pipelines called inverted siphons are used to carry sewage or stormwater under streams, highway cuts, or other depressions in the ground. In an inverted siphon the liquid completely fills the pipe and flows under pressure, as opposed to the open-channel gravity flow that occurs in most sanitary or storm sewers. [91]
Inverted siphoning occurs below the line "A". Examples of traps In plumbing , a trap is a U-shaped portion of pipe designed to trap liquid or gas to prevent unwanted flow; most notably sewer gases from entering buildings while allowing waste materials to pass through.
The initial stage of the project included the construction of a diversion dam on Hobart Creek, a wooden flume from the dam to an inlet tank which was 4.6 miles long, and the 7 miles of twelve-inch riveted wrought iron pipeline, the inverted siphon. Another flume from the Hobart Diversion Reservoir and a second inverted siphon were completed in ...
It included 15 inverted siphons that covered a distance of 6.13 miles (9.87 km). A tunnel 0.7 miles (1.1 km) long also made up part of the ditch. The remainder was open canal. The longest section of pipeline was a 7,961 feet (2,427 m) siphon that crossed the Chatanika River with a head of 544 feet (166 m).
The Rivervale Inverted Siphons, also known as the Rivervale Tunnel, are a historic flood control project in rural Poinsett County, Arkansas. It is essentially a very large concrete culvert , which channels the water flow of Ditch Number 4 under the Right Hand Chute Little River , into which it would normally drain.
This inverted siphon was used to draw the fire's hot fumes up the front and down the back of the Franklin stove's hollow baffle, in order to extract as much heat as possible from the fumes. The earliest known example of such an inverted siphon was the 1618 fireplace of Franz Kessler. [9] The fire burned in a ceramic box.
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A lift station is a sewer sump that lifts accumulated sewage to a higher elevation. They may also be used to prime an inverted siphon used to cross underneath rivers or other obstructions. The pump may discharge to another gravity sewer or directly to a treatment plant. [6]