TREATMENT PLANT.—This plan shows the layout of the Christchurch Drainage Board’s sewage purification works at Bromley. Provision is made in the unit for the removal of suspended solids by screening and sedimentation and for biological oxidation of the flow before discharge into the oxidation ponds between Cuthberts road and the Estuary. The units are: influent structure (1), screen room (2), primary sedimentation tanks (3), trickling filters (4), secondary sedimentation tanks (5), sludge digesters (6), sludge lagoon (7), operations building (8).
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https://paperspast.natlib.govt.nz/newspapers/CHP19660617.2.206.27.1
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Press, Volume CVI, Issue 31088, 17 June 1966, Page 29 (Supplement)
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80TREATMENT PLANT.—This plan shows the layout of the Christchurch Drainage Board’s sewage purification works at Bromley. Provision is made in the unit for the removal of suspended solids by screening and sedimentation and for biological oxidation of the flow before discharge into the oxidation ponds between Cuthberts road and the Estuary. The units are: influent structure (1), screen room (2), primary sedimentation tanks (3), trickling filters (4), secondary sedimentation tanks (5), sludge digesters (6), sludge lagoon (7), operations building (8). Press, Volume CVI, Issue 31088, 17 June 1966, Page 29 (Supplement)
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