Four photographs, size 12" x 10", city of Sheffield bio-aeration sewage disposal works ( copied from 1924 633)
Photograph, City of Sheffield bio-aeration sewage disposal works, parts of unit No. 3 showing detritus and settling tanks and one aeration tank with paddle wheels mounted.
Photograph, City of Sheffield bio-aeration sewage disposal works. Photograph shows end view of paddle wheel platform for unit No. 3 and the encased paddle wheels and engine house over the aeration tank.
Photograph, City of Sheffield bio-aeration sewage disposal works. Photograph shows the general view of the sewage works at Tinsley, showing aeration tank with paddle wheels and distributing penstocks in the foreground.
Photograph, City of Sheffield bio-aeration sewage disposal works. Photograph shows detailed view of paddle wheel for unit No. 3, during erection and before fitting the paddles and casing.
