Topics Technology & Engineering

Black-and-white image of a tray with three compartments and four small glass cylinders

Drain water from sludges obtained from sedimentation, septic and Emscher tanks

State Street pipeline construction

State Street pipeline construction, 1904

Belmont Filters construction 1903

Belmont Filters construction, 1903

Rudolph Hering

Rudolph Hering

Standard Philadelphia (B) Hydrant (2004.057.022.1075)

Standard Philadelphia (B) Hydrant

Sewage collection and disposal plan

Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912

Diagram of the Philadelphia Water Department's wastewater treatment process

Wastewater Treatment Process diagram

1902 photo of Upper Roxborough Filter beds under construction

Upper Roxborough Filter Bed Construction, 1902