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Theses/Dissertations

Chemical engineering

Retrospective Theses and Dissertations

1980

Articles 1 - 3 of 3

Full-Text Articles in Engineering

Modeling Of Solid-Gas Reactions With Application To The Chlorination Of Lime , David Edward Yake Jan 1980

Modeling Of Solid-Gas Reactions With Application To The Chlorination Of Lime , David Edward Yake

Retrospective Theses and Dissertations

No abstract provided.


The Simultaneous Precipitation Of Calcium Carbonate And Magnesium Hydroxide In The Water Softening Process , Robert William Peters Jan 1980

The Simultaneous Precipitation Of Calcium Carbonate And Magnesium Hydroxide In The Water Softening Process , Robert William Peters

Retrospective Theses and Dissertations

The crystallization kinetics for the simultaneous precipitation of calcium carbonate and magnesium hydroxide were studied. The kinetics for these two precipitations have been studied in a continuous reactor operated under MSMPR (mixed suspension mixed product removal) conditions, first developed by Randolph and Larson('1) for more concentrated systems. The system was studied as a pseudo one component system, with the population balance being applied to this light suspension system ((TURN).2 gm/l). Reactor residence times, effluent alkalinity conditions, and initial iron content (acting as an impurity) were varied to determine these kinetics. The crystal size distribution was measured using ...


Moisture Flow Optimization In Porous Media For Land Leaching And For Seedbed Design , Stephen Bruce Affleck Jan 1980

Moisture Flow Optimization In Porous Media For Land Leaching And For Seedbed Design , Stephen Bruce Affleck

Retrospective Theses and Dissertations

Two problems on optimization of fresh water management in porous media soil systems were investigated. The first problem dealt with the use of surface barriers on tile-drained land during leaching operations. The barriers were designed to prevent direct flow to underlying tile drains and make leaching more efficient. The 0.1 m diameter tile drains were imbedded in an impermeable layer 2 m below the ground surface and drain spacings of 4, 8 and 16 m were investigated. Calculations were made for surface barriers that covered 25, 50 and 75 percent of the land for each case of tile spacing ...