Purification is the process of rendering something pure, i.e. clean of foreign elements and/or pollution. This can refer to:

Physically separating a substance of interest from foreign or contaminating elements, and can take one or more of the following forms The Lachine Canal, in Montreal, is badly polluted Pollution is the release of harmful environmental contaminants, or the substances so released. ...

• Filtration is a mechanical method to remove solids from liquids.
• Condensation or distillation is used to remove soluble substances from liquids, which cannot be done through filtration due to the small size of the substances.
• Smelting is used to produce metals from raw ore, and involves adding chemicals to the ore and heating it up to the melting point of the metal.
• Refining is used primarily in the petroleum industry, whereby crude oil is heated and separated into stages according to the condensation points of the various elements.
• Water purification combines a number of methods to produce potable or drinking water

In religious context, it can mean In chemistry, alchemy and water treatment, filtration is the process of using a filter to mechanically separate a mixture. ... In jewelry, a solid gold piece is the alternative to gold-filled or gold-plated jewelry. ... A liquid will assume the shape of its container. ... Condensation is the change in matter1 of a substance to a denser phase, such as a puppy gas (or vapor) to a liquid. ... Strathisla whisky distillery in Keith, Scotland Distillation is a method of separation of substances based on differences in their vapor pressures. ... It has been suggested that this article or section be merged with Solution. ... Chemical reduction, or smelting, is a form of extractive metallurgy. ... Hot metal work from a blacksmith Look up Metal in Wiktionary, the free dictionary. ... Iron ore (Banded iron formation) Manganese ore Lead ore Gold ore An ore is a volume of rock containing components or minerals in a mode of occurrence which renders it valuable for mining. ... A chemical substance is any material substance used in or obtained by a process in chemistry: A chemical compound is a substance consisting of two or more chemical elements that are chemically combined in fixed proportions. ... HVAC may also stand for High-voltage alternating current HVAC is an initialism that stands for heating, ventilation and air-conditioning. This is sometimes referred to as climate control. ... Refining is the process of purification of a substance, usually used of a natural resource that is almost in a usable form, but which is more useful in its pure form. ... Pumpjack pumping an oil well near Sarnia, Ontario Petroleum (from Greek petra – rock and elaion – oil or Latin oleum – oil ) or crude oil is a thick, dark brown or greenish liquid. ... Water purification is the removal of contaminants from raw water to produce drinking water that is pure enough for human consumption. ... Drinking water Drinking water is water that is intended to be drunk by humans. ... Religious is a term with both a technical definition and folk use. ...

• a ceremonial or ritual cleansing, such as baptism;
• the Christian liturgical feast named Purification of the Virgin.

In Economics, a Nash equilibrium consisting of randomly mixed strategies in a game can be interpreted as pure strategy equilibrium of a different game. See purification theorems. A ceremony is an activity, infused with ritual significance, performed on a certain occasion. ... A ritual is a set of actions, performed mainly for their symbolic value, which is prescribed by a religion or by the traditions of sex A ritual may be performed at regular intervals, or on specific occasions, or at the discretion of individuals or communities. ... Cleansing is Prongs fifth album, released in January 1994. ... Baptism in early Christian art. ... Candlemas (Russian: Sretenie, Spanish: Candelaria) is a Christian feast commemorating the purification of the Virgin Mary and the presentation of the infant Jesus in the Temple. ... Buyers bargain for good prices while sellers put forth their best front in Chichicastenango Market, Guatemala. ... In game theory, the Nash equilibrium (named after John Nash, who proposed it) is a kind of solution concepts of a game involving two or more players, where no player has anything to gain by changing only his or her own strategy. ... A mixed strategy is used in game theory economics to describe a strategy comprising possible moves and a probability distribution which corresponds to how frequently each move is chosen. ... Game theory is a branch of applied mathematics that studies strategic situations where players choose different actions in an attempt to maximize their returns. ... A pure strategy is a term used to refer to strategies in Game theory. ...