Instream Aerators for Polluted Rivers

by William Whipple, Jr., (F.ASCE), Dir.; Water Resour. Res. Inst., Rutgers Univ., New Brunswick, NJ,
Francis P. Coughlan, Jr., (M.ASCE), Partner; Hazen and Sawyer, New York, NY,
Shaw L. Yu, (A.M.ASCE), Asst. Res. Prof.; Water Resour. Res. Inst., Rutgers Univ., New Brunswick, NJ,

Serial Information: Journal of the Sanitary Engineering Division, 1970, Vol. 96, Issue 5, Pg. 1153-1165

Document Type: Journal Paper


Field tests and performance analysis of instream aeration equipment on the Passaic River showed mechanical aerators more efficient than diffusers. Transfer rate varied markedly with oxygen deficit, temperature, and velocity of flow. Unexpectedly, rate of deoxygenation increased greatly downstream of the aerators. Cost estimates were made of typical systems. A systems analysis, based upon the principle of BOD mass balance analysis, showed that the aerators would achieve a given dissolved oxygen level at about one-fourth the cost of advanced waste treatment.

Subject Headings: Aeration | Water pollution | Field tests | Rivers and streams | System analysis | Dissolved oxygen | Waste treatment | Equipment and machinery

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