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The Buchan trap was devised in the 19th century to stop the flow of sewer gases due to the miasma theory of disease. [1] For example, it was believed that the disease cholera was an airborne infection, not waterborne. The Buchan trap is normally found in the bottom of manholes or drop-shafts.
Territorial waters and exclusive economic zone of the Philippines. The Philippines is an archipelagic state whose over 7,000 islands of roughly 300,000 square kilometres (120,000 sq mi) [1] are surrounded by 36,289 kilometres (22,549 mi) of coastline [2]: 15 supporting a large coastal population.
There were 2.35 million metric tons of aquaculture products created in the Philippines, 54.15% of all fisheries products in the Philippines, with a total value of around PhP 124.00 billion. The biggest commodity by volume was seaweed, which with 1,544,959.98 metric tons made up 65.8% of aquaculture production.
Water enters at right, fills the trap, and continues left. Inverted siphoning occurs below the line "A". Examples of traps [further explanation needed] 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 ...
Floods in Philippines kill at least 9 and trap others on roofs as storm approaches By JIM GOMEZ Associated Press MANILA, Philippines (AP) — Torrential rain set off by an approaching tropical storm swamped the eastern Philippines with widespread flooding that killed at least nine people, trapped others on their roofs and sparked frantic ...
A payao is a traditional fish aggregating device from the Philippines. [1] [2] Payaos are traditionally floating rafts of bamboo anchored to the seafloor, with submerged weighted palm fronds beneath it. They were harvested using handline fishing, surface trolling, or small-scale purse seining.
Grease traps have been in use since the Victorian era; in the late 1800s, Nathaniel Whiting was granted the first patent. The quantity of fats, oils, greases, and solids (FOGS) that enter sewers is decreased by the traps. They consist of boxes within the drain run that flows between the sinks in a kitchen and the sewer system.
A gully is a landform created by running water, mass movement, or commonly a combination of both eroding sharply into soil or other relatively erodible material, typically on a hillside or in river floodplains or terraces.