Versatility and Expandability of Pretreatment

by R. Eliassen,
D. F. Coburn,

Serial Information: Journal of the Sanitary Engineering Division, 1969, Vol. 95, Issue 2, Pg. 299-310

Document Type: Journal Paper


Pretreatment processes are designed to precondition water and wastewater for subsequent operations. Processes for water include watershed management, reservoir storage t screening, sand traps, aeration, and chemical treatment. Pumps, racks, grinding, grit removal and washing, preaeration, flotation, and chemical treatment are used for wastewater. The combination of processes varies with each installation, but depends largely on the characteristics of the raw water and wastewater and the degree of treatment to be provided. Planning and designing for pretreatment must be based on a detailed understanding of the processes and their functions. A good design must meet the immediate and the future treatment objectives, and allow for changes and future expansion in treatment units and processes.

Subject Headings: Chemical treatment | Industrial wastes | Wastewater treatment | Chemical processes | Water storage | Aeration | Hydraulic design | Watersheds

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