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A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .
An algae scrubber filters water by moving water rapidly over a rough, highly illuminated surface, which causes algae to start growing in large amounts. As the algae grow, they consume nutrients such as nitrate, phosphate, nitrite, ammonia, ammonium and even metals such as copper from the water. [2] These nutrients are normally a problem in ...
Diatom filter. Diatomaceous earth (DE) filtration is a special filtration process that removes particles from liquids as it passes through a layer of fossilized remains of microscopic water organism called diatoms. These diatoms are mined from diatomite deposits which are located along the Earth's surface as they have accumulated in sediment of ...
Diatomite rock sample from Sisquoc Formation Scanning electron micrograph of diatomaceous earth. Diatomaceous earth (/ ˌ d aɪ. ə t ə ˈ m eɪ ʃ ə s / DY-ə-tə-MAY-shəs), diatomite (/ d aɪ ˈ æ t ə m aɪ t / dy-AT-ə-myte), celite or kieselgur/kieselguhr is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder.
The New York Aquarium is the oldest continually operating aquarium in the United States, located on the Riegelmann Boardwalk in Coney Island, Brooklyn, New York City. It was founded at Castle Garden in Battery Park, Manhattan, in 1896, and moved to Coney Island in 1957. The aquarium is operated by the Wildlife Conservation Society (WCS) as part ...
The " Letter from Birmingham Jail ", also known as the " Letter from Birmingham City Jail " and " The Negro Is Your Brother ", is an open letter written on April 16, 1963, by Martin Luther King Jr. It says that people have a moral responsibility to break unjust laws and to take direct action rather than waiting potentially forever for justice ...
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