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8833-1.S92 - Mississippi State University Department of...

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Mississippi State University Department of Civil Engineering CE8833: Sludge Treatment and Disposal Spring 1992 Exam I D. D. Truax Name:_____________________________________________ (10%) 1. With regard to sludges: a. briefly define what the term "sludge" is used to represent, b. briefly discuss the problems which they can cause, c. define three parameters which are used to characterize sludges, and d. explain briefly the significance of each. (10%) 2.Water is a major component of all raw sludges. a. Define the four different forms in which water exists in raw sludges. b. Approximate the typical distribution (in percent) for each form. c. Define a category of sludge treatment processes (e.g., stabilization) which best addresses the removal of each of the forms of water. d. What fraction (give a range) of raw sludges is water. (20%) 3. There are numerous considerations in defining sludge treatment needs. a. List three non-technical matters which affect sludge treatment approach. b. Briefly explain how each impacts treatment decisions.
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