Sludge scraping apparatus

Sludge settling basin

Sludge shovel apparatus

Sludge vacuum system

Surface skimmer means for settling tank

Surface skimming apparatus

Tape drive with self-expanding coils for sludge collector

Tape drive with self-expanding coils for sludge collector

Tower-type grease removal apparatus for commercial grease...

Traction-driven composite sludge raking mechanism for sedimentat

Transporting element of a reciprocable scraper for moving sludge

Traveling siphon sludge collector

Underwater clearing device for round sewage treatment basins

Upflow bioreactor having a septum and an auger and drive...

Waste collection system for separating liquid waste from...

Waste treatment cleaner apparatus

Water and waste treatment systems

Water treatment system for rectangular clarifiers

Wear shoe for sludge collector

Wear strip assembly for use in a waste water treatment facility