Incineration: The conversion of dewatered wastewater solids by combustion (burning) to ash, carbon dioxide, and water vapor.
Infiltration: The seepage of groundwater into a sewer system, including service connections. Seepage frequently occurs through defective or cracked pipes, pipe joints, connections or manhole walls.
Influent: The liquid - raw (untreated) or partially treated - flowing into a reservoir, basin, treatment process or treatment plant. Inoculate: To introduce a seed culture into a system.
Inorganic waste: Waste material such as sand, salt, iron, calcium, and other mineral materials which are only slightly affected by the action of organisms.
Inorganic wastes are chemical substances of mineral origin; whereas organic wastes are chemical substances usually of animal or plant origin.
Interface: The common boundary layer between two substances such as between water and a solid (metal) or between water and a gas (air) or between a liquid
(water) and another liquid (oil).
Intraspecies: Within same species; Elk vs. Elk.
Interspecies: Between two different species, such as tomato and weeds.
Ionization: The process of adding electrons to, or removing electrons from, atoms or molecules, thereby creating ions. High temperatures, electrical discharges, and nuclear radiation can cause ionization.
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