ind memo for project

ind memo for project - characteristics, including air flow...

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DATE: 16 July 2007 TO: Roland Rowe, Technical Communications Instructor FROM: Vanessa Barela SUBJECT: Individual Project Memo The purpose of this memorandum is to describe my individual project and the style sheet. The style sheet for the project will be APA. The project will be on my individual research project entitled, “Gas Transfer in Aerated Systems.” Below is the abstract for the project. Gas transfer is a operation in many environmental engineering processes. It may involve either absorption of gas into or stripping of a gas out of the liquid phase. The transfer of oxygen to liquid systems is particularly important in the biological treatment of wastewaters. The purpose of this experiment is to measure the overall gas transfer coefficient (K LA ) during aeration and quantify the influence of water
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Unformatted text preview: characteristics, including air flow rate, bubble size, temperature and mixing intensity, on gas transfer. Aeration Systems There are various types of aeration systems. The most common types used are mechanical aerators and diffused air systems. Mechanical aerators apply energy to the water causing splashing and turbulence to the surface, which increases the gas transfer rate. Diffused air aeration systems bubble air or oxygen through the wastewater, which rise from the floor of the aeration tank and provide the mass transfer of oxygen to the water. The temperature of the water, the size of the bubble, and the rate at which air is added to the water and mixing intensity will all have an effect on the gas transfer efficiency....
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This note was uploaded on 04/29/2008 for the course ENGL 341 taught by Professor Rowe during the Summer '07 term at NMT.

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