Physical and chemical methods. Water reclamation.
D007220:Industrial Waste; D008722:Methods; D010758:Phosphorus / Q000032:analysis; D012037:Refuse Disposal; D012722:Sewage / Q000032:analysis*; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply
D007220:Industrial Waste; D012722:Sewage; D010758:Phosphorus