WATER QUALITY LAB WRITE-UP ENGG*3590

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22 Φεβ 2014 (πριν από 3 χρόνια και 8 μήνες)

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WATER QUALITY LAB WRITE
-
UP

ENGG*3590


Type II Sedimentation


The class data for all the sedimentation tests have been posted on the course website. Please
prepare a formal lab report as outlined in the Water Quality Laboratory Manual
. Following is a
partial

list of things that should be included in the lab report.


Introduction and Background:


5


-

What are different types of sedimentation?

-

Briefly describe the significance of Type II sedimentation in water and wastewater treatment


Methodology: (
Note: should vary from Lab Manual)


5


-

Briefly state the basic principle
and process design procedure for Type II sedimentation

-

Summarize the experimental protocol used


Results:


15


-

Review the class data

-

Determine
the

size of sedimentation tank for
Q = 50 MLD and R = 75%


Discussion:


15


-

Discuss the precision & accuracy of your results and identify the possible experimental errors

-

Answer the following questions:

»

Why must a safety factor be placed

on the design detention time in practice?

»

Why is the sedimentation depth an important factor for Type II sedimentation in contrast
to Type I sedimentation?

»

What are the general trend of the sedimentation types as a function of solid concentration
and part
icle size?

»

What could be done to improve solids removal efficiency
?


Conclusions and Recommendation

5

-

List the main conclusions

-

Provide the recommendation how the experiment can be improved


General Organization and Presentation

5

-

Pro
per citations

-

Spelling and grammar

-

Material organization


Total Mark

50


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TypeII_guide.doc