Design Team Quiz

Questions:

1. Describe the processes occurring in the entrance tank, vertical flocculator and sedimentation tank.

2. Describe the major design criteria that should be considered in the design of the sedimentation slopes. Also what benefits do the slopes have over the original design of inlet pipes. (Single vertical pipes running into each slope vs. several horizontal pipes running along the sed tank bottom)

3. Why were the slopes changed from triangles to trapezoids?

4. What is the purpose of having the exit channel switch sides of the tank? and when both channels are on the same side of the tank which one is closer to the wall?

5. Design a plant with a design flow rate of 800 gal/min, 6 sed tanks, and with an sed tank upflow velocity of 60 m/day. Include an accurate autocad drawing.

6. Design a plant with a design flow rate of 200 gal/min. Include an accurate autocad drawing. You pick appropriate number of tanks, and sed upflow velocity should go back to 70 m/day.

7. Locate the pages on the wiki where students in Honduras post information about current projects. what is the flow rate of Gracias? and what is the current status of construction at the 4 communities? Name one town that is a potential candidate for an Aguaclara plant?

8. Suggest one improvement you see for some part of the plant design.