8833-2.S92 - Mississippi State University Department of...

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Mississippi State University Department of Civil Engineering CE 8833: Sludge Treatment and Disposal Spring, 1992 Exam 2 Truax Name:_________________________________________________ One 8.5 x 11 inch paper is acceptable for reference equations and conversions only. This document MUST be submitted along with your solution to this exam. If no such reference was used, state so on a sheet of paper and submit it. Good luck. (15%) 1. Briefly explain: a) the Lime Stabilization Process, b) why/when sludge conditioning is needed, c) the differences in solids destruction mechanism between aerobic and anaerobic digestion, d) when and why sludge lagoons should be deep and when and why they should be shallow, and e) the processes behind heat conditioning. (15%) 2. Discuss in detail the various pathways that pathogens can be transmitted to man. Overview what your strategy would be to prevent such transmission in the design of a sludge treatment system. (20%) 3. A sludge lagoon is to be loaded with an average of 2,500 pounds of sludge solids per day.
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This note was uploaded on 06/12/2011 for the course CE 8833 taught by Professor Truax during the Spring '11 term at Mississippi State.

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8833-2.S92 - Mississippi State University Department of...

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