#water treatment
- Aerate — To introduce fresh air into a room, an enclosed environment, or a technical system through ventilation, opening windows, or mechanical means; to subject a body, liquid, or soil to the action of atmospheric oxygen in order to improve its structural properties or to eliminate stale gases.
- Aeration — The act of aerating and its result; a physical, mechanical, or biological process through which a space, a liquid (such as wastewater in treatment plants), or a solid (such as agricultural soil) is enriched with air or atmospheric oxygen to stimulate oxidative processes, eliminate parasitic gases, and improve structural quality.
- 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.
- Alkalinization — The act of alkalinizing and its result; a chemical, industrial, or physiological process through which a medium increases its pH above the neutral value of 7. Alkalinization is widely utilized in wastewater treatment, in agriculture for correcting podzolic soils, and in medical detoxification protocols.
- Alkalization — The act of alkalizing and its result; a chemical, physiological, or industrial process through which the pH value of a medium is increased above the neutral threshold of 7. Alkalization is frequently used as a synonym for 'alkalinization', having essential applications in water treatment, the food industry (cocoa processing), and correcting acidic agricultural soils.
- Antiflocculant — Preventing, blocking, or delaying the flocculation process (the aggregation of fine particles suspended in a liquid into gelatinous flakes); a chemical dispersing agent used to maintain the homogeneous stability of colloidal suspensions. Antiflocculant agents increase electrostatic repulsion to prevent premature sedimentation.
- Arcuda — A proper geographical name designating a locality in Giurgiu County, Romania, as well as a famous water treatment plant belonging to the utility network of the Bucharest municipality. Structurally, the hydrotechnical node at Arcuda, situated on the Argeș River, represents an essential strategic point for national municipal infrastructure, possessing a technical history that dates back to the late 19th century.
- 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.