Improved process of and apparatus for treating residuary waters, sewage sludge and the like
GB217854A
Improvements in methods of and devices for the mechanical separation and recovering of liquids and solids of different densities
GB220187A
Improved apparatus for drying and destroying sewage sludge and soils of any nature by their own combustion
US1432766A
Apparatus for treating effluent or other liquids and for the separation and recovery of matters of different densities
DE352574C
Clarifier for flowing fluids
GB161735A
Improved apparatus for treating effluent or other liquids and for the separation and recovery of matters of different densities
GB153335A
Method and means for reducing the percentage of water in sewage sludge or the like
GB150368A
Method of and means for drying sewage sludge or other wet or moisture laden material
GB138655A
Method of and apparatus for separating, or separating and recovering (and if desiredwashing) oil, grease, fat, or fatty matter or the like or other material from water or other liquids or for the separation of two liquids of different densities
GB100543A
Improvements in Processes for Sterilising Liquids.
