Aeration apparatus and method
Aeration device
Aeration of waste in septic tank
Apparatus for removing suspended solids from a liquid
Apparatus for sludge digestion
Apparatus for the anaerobic treatment of waste water
Apparatus for the biological purification of waste water
Apparatus for the treatment of liquids
Apparatus for the treatment of liquids
Apparatus for treatment of sludge
Centrifuging mixture separator
Clarifier apparatus
Device for the biological purification of waste water
Electrolytic tubular mixer-settler
Fluidized bed reactor
Geothermal brine treatment
Horizontal flow clarifier
Hydrocylone apparatus for separating dense particles from a flow
Individual wastewater treatment plant
Methods and apparatus for treating wastewater