Memorial Tributes Volume 11 (2007) / Chapter Skim
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Donald R. F. Harleman
Donald R. F. Harleman
Pages 142-149
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From page 143... ...
Born on December 5, 1922, in Palmerton, Pennsylvania, Don received a bachelor's degree in civil engineering from Pennsylvania State University in 1943 and then worked as a design engineer for the Curtis-Wright Corporation in Ohio during the last years of World War II. In October 1945, he arrived at MIT, a 22year-old beginning graduate student in the Department of Civil and Sanitary Engineering with an interest in fluid flow.
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From page 144... ...
Don and his students established a fundamental model for predicting stratification based on meteorological conditions. The model relied on molecular diffusion for vertical heat transport, a formulation that avoided calibrating an eddy diffusion function to capture turbulent diffusion.
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From page 145... ...
As a direct corollary of Don's leadership, MIT was arguably the leader in analyzing thermal discharges. Compared with wastewater outfalls, thermal discharges are characterized by generally larger flow rates, lower density differences, and shallower water depths; hence flow is dominated more by momentum than by buoyancy, and designs are strongly influenced by port velocity, elevation (surface vs.
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From page 146... ...
During a visit to southern California in 1989, Don found evidence to support his case. In response to a California regulation requiring that 75 percent of solids be removed from effluents discharged into the Pacific Ocean, primary clarifiers at wastewater treatment plants serving more than 12 million people in the Los Angeles and San Diego areas had been retrofitted to accept chemical additives.
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From page 147... ...
to describe the use of low doses of a primary coagulant, typically a metal salt, and potentially also a polymer, in the first stage of municipal wastewater treatment. He advocated the use of CEPT in the Boston Harbor cleanup, arguing that it would accomplish several sensible aims: it would halve the size of the proposed Deer Island plant and concurrently free financial resources for solving the "real" problem -- CSO overflows.
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From page 148... ...
In 1994, the Hong Kong Environmental Protection Department asked Don Harleman to take part in an international review panel, which ultimately recommended using CEPT followed by ultraviolet disinfection and a shorter outfall whose location would be determined by a proposed model study. The Hong Kong government accepted these recommendations, and the Stone Cutters Island Sewage Treatment Works was inaugurated in 2001.
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From page 149... ...
He and Martha opened their hearts and their home to students, colleagues, and friends in ways that cannot be described but that some of us were lucky enough to experience. In March 2000, more than 300 friends, family, and colleagues gathered to honor Don and Martha by establishing the Donald and Martha Harleman Professorship of Civil and Environmental Engineering at MIT.
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