Lagoons and oxidation ponds.
D000332:Aerobiosis; D000388:Air; D004058:Diffusion; D005618:Fresh Water; D007220:Industrial Waste; D007700:Kinetics; D008722:Methods; D008962:Models, Theoretical; D012498:Sanitary Engineering; D014876:Water Pollution; D014877:Water Pollution, Chemical
D007220:Industrial Waste