Chemical phosphorus removal is a wastewater treatment method, where phosphorus is removed using salts of aluminum (e.g. alum or polyaluminum chloride), iron (e.g. ferric chloride), or calcium (e.g. lime). Phosphate forms precipitates with the metal ions and is removed together with the sludge in the separation unit (sedimentation tank, flotation tank, etc.).[1]
^Wastewater engineering : treatment and reuse (4 ed.). McGraw-Hill. 2003. p. 501. ISBN 0070418780.
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Chemicalphosphorusremoval is a wastewater treatment method, where phosphorus is removed using salts of aluminum (e.g. alum or polyaluminum chloride)...
chemicalphosphorusremoval. The chemicalphosphorusremoval in those systems may be used as a backup system, for use when the biological phosphorus removal...
It is also likely to occur as the result of use of chemical weapons that contain white phosphorus. It was most commonly seen in workers in the matchstick...
White phosphorus munitions are weapons that use one of the common allotropes of the chemical element phosphorus. White phosphorus is used in smoke, illumination...
Enhanced biological phosphorusremoval (EBPR) is a sewage treatment configuration applied to activated sludge systems for the removal of phosphate. The...
Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus...
phosphoric(V) acid) is a colorless, odorless phosphorus-containing solid, and inorganic compound with the chemical formula H3PO4. It is commonly encountered...
needed] Aluminium sulfate is used in water purification and for chemicalphosphorusremoval from wastewater. It causes suspended impurities to coagulate...
is the number of phosphorus atoms and x is the number of fundamental cycles in the molecule's structure, between 0 and n + 2/2. Removal of protons (H+)...
component, unlike nitrogen, the phosphorus cycle can be characterized as closed. The removal and storage of phosphorus from wastewater can only occur within...
phosphoric acid by the removal of three protons H+ . Removal of one proton gives the dihydrogen phosphate ion [H 2PO 4]− while removal of two protons gives...
action) is in-and-of itself forbidden by the treaty. Other chemicals, such as white phosphorus, are highly toxic but are legal under the CWC when they are...
apparent following the introduction of chemical fertilizers in agriculture (green revolution of the mid-1900s). Phosphorus and nitrogen are the two main nutrients...
pioneer of biological nutrient remover, a non-chemical means of water treatment to remove nitrogen and phosphorus from used water. Barnard was elected as a...
apparently bearing more than eight electrons in their valence shells. Phosphorus pentachloride (PCl5), sulfur hexafluoride (SF6), chlorine trifluoride...
sludge under aerobic conditions. Simultaneous Chemical oxygen demand, and Nitrogen and Phosphorusremoval, can be easily integrated in a discontinuous...
solids removal (e.g. chemical precipitation, filtration), oils and grease removal, removal of biodegradable organics, removal of other organics, removal of...
Nonmetals are chemical elements that mostly lack distinctive metallic properties. They range from colorless gases like hydrogen to shiny crystals like...
is a natural or chemically modified substance that helps soil become more fertile. These fertilizers contain high amounts of phosphorus and nitrogen, which...
(November 2005). "Synthesis of phosphorus esters by transesterification mediated by N-heterocyclic carbenes (NHCs)". Chemical Communications (43): 5456–8...
containing laterite achieved 96% removal of phosphorus. This removal is greater than reported in other systems. Initial removals of aluminum and iron by pilot-scale...
involvement of facultative organisms. Besides phosphorus precipitation, enhanced biological phosphorusremoval can be implemented which requires an additional...
sediment removal found that prairie filter strips had a 96% sediment trapping efficiency over a 4-year period. As with nitrogen and phosphorus reduction...