Aerobic wastewater treatment system for small flows
Aerobic wastewater treatment system for small flows
Aerobic, thermophilic degradation with enzyme addition
Aerosol dispersion of microorganisms to eliminate oil slicks
Affinity chromatography and substrate useful therefor
Agent for removing heavy metals
Air inlet valve for water cooler
Aircraft fuel contaminant tester
Airless artificial kidney assembly
Alarm mechanism for chlorinator in aerobic waste treatment syste
Algae growth control
Alum recovery and waste disposal in water treatment
Anaerobic digestion process
Anaerobic digestion process
Anaerobic fermentation of excreta in a collapsible bag
Anaerobic method of treating high-strength waste-water
Angle rotor countercurrent chromatography
Anisotropic phenolic polyether membrane
Anti-coagulating and filtering blood
Anti-corrosion composition for use in aqueous systems