#purification

• Abaris — A legendary figure in Greek mythology, known as Abaris the Hyperborean, a priest of Apollo, healer, and shaman attested by Pindar and Herodotus. In the history of medicine and anthropology, he is studied as a representative of archaic pre-scientific medical practices (iatromantis), curing epidemics through incantations, exorcisms, and spiritual purification rituals.
• Ablution — A secondary form or variant spelling of the noun 'abluțiune'. It denotes the partial or total washing of the body, having a ritual or symbolic character for spiritual purification within certain religions (such as Islam or Hinduism). In a medical or daily sense, it represents simple washing or bathing, while in geomorphology it defines the erosion of rocks on the ocean floor caused by deep currents.
• Ablution — The standard and primary noun form denoting the partial or total washing of the body, having a ritual or symbolic character, intended for spiritual purification within various world religions. In a medical or everyday sense, it represents the cleansing of the body through bathing, while in geomorphology it defines the process of submarine erosion caused by deep ocean currents.
• Holy water — A regional phonetic variant found in Transylvanian and Banat dialects for the noun 'agheasmă' (holy water); it represents the water blessed by a priest during an Orthodox or Catholic religious service, structurally used in rituals of purification, blessing of homes, and expelling of evil spirits. The term preserves a strong customary value within the spiritual life of rural communities.
• Aeration tank — A large basin, reservoir, or industrial technical installation used in wastewater treatment plants for their aerobic biological treatment. Its structural operation relies on the continuous and forced insufflation of air (oxygenation) into the liquid mass, a process that stimulates the growth of microorganisms in the active sludge which decompose polluting organic substances.
• Refining — An industrial technological process or set of physico-chemical operations performed to eliminate impurities from a raw metal, alloy, or molten glass; refining. In steelmaking, it specifically designates the conversion of pig iron into steel by reducing carbon, sulfur, and phosphorus.
• Refining — A complex industrial technological process consisting of removing impurities, trapped gases, or residual elements from raw materials to increase purity and homogeneity. It applies to clarifying molten glass, purifying metals (pig iron into steel), and refining raw sugar before bleaching.
• Ambarvalia — Ancient Roman agricultural festivals celebrated annually in May in honor of Ceres and Mars, consisting of a ceremonial procession of sacrificial animals around the boundaries of the fields to purify the land and ensure crop fertility.
• Anion exchanger — A synthetic or natural macromolecular ion exchanger capable of binding and exchanging anions from aqueous solutions. This type of ion-exchange resin contains functional groups with a basic character fixed onto an insoluble polymeric matrix, widely utilized in industrial processes for demineralization, softening, and advanced purification of wastewater or drinking water.
• Anti-mephitic — Destroying, absorbing, neutralizing, or eliminating mephitic vapors (toxic, foul-smelling, or asphyxiating gases emanated from decaying matter, swamps, cesspools, or underground galleries); a chemical substance or disinfectant mixture used to purify the atmosphere in insalubrious environments. In a structural sense, it acts via molecular binding or oxidation of sulfur and nitrogen compounds, neutralizing dangerous vapors.
• Sanitation systems — The plural form of the noun assembler, used to designate assemblies of equipment, substances, technologies, or complex measures intended for eliminating pollution sources, draining swampy lands, or purifying biological environments. In a general sense, it refers to all elements that actively contribute to improving hygienic and sanitary conditions within a region or community.
• To self-clean — To automatically or autonomously eliminate or clean one's own impurities, residues, deposits, or harmful substances through its own built-in constructive, chemical, technological, or biological mechanisms, without requiring direct manual intervention from an external factor. In technology, it describes a smart feature of household or industrial appliances, whereas in ecology it refers to the natural capacity of an aquatic or forest ecosystem to neutralize pollutants.
• Self-cleaning — The act of self-cleaning and its result; a technological feature, automated cycle, or structural ecological process through which an appliance, filter, or natural medium eliminates its accumulated residues and impurities on its own. This property optimizes efficiency, prevents blockages, and extends the lifespan of systems.
• Self-purification — A natural biological, physical, or chemical process by which a polluted body of water, an ecosystem, or a living organism rids itself of toxic substances, impurities, or pathogens, restoring its initial structural balance without artificial external intervention.