Eutrophication and wastewater purification.
D011232:Chemical Precipitation; D056890:Eukaryota / Q000254:growth & development*; D007220:Industrial Waste; D008670:Metals; D009584:Nitrogen; D009747:Nutritional Physiological Phenomena; D010758:Phosphorus; D012722:Sewage; D014873:Water Pollutants; D014881:Water Supply
D007220:Industrial Waste; D008670:Metals; D012722:Sewage; D014873:Water Pollutants; D010758:Phosphorus; D009584:Nitrogen