Water Filtration Plant
A fresh young graduate from Bahrain polytechnic came up with an idea to set up a Water Treatment Plant to purify polluted ground water. Figure 1 shows the
schematic of the water filtration plant with two overhead tanks namely overhead tank 1 and overhead tank 2. The plant also has 3 filtration units namely filtration
plant 1, plant 2 & plant 3 respectively. The idea is to purify impure ground water and store it in overhead plant 2.
Figure 1- Water Treatment Plant
Important Information
1. Dimensions of Overhead Tank 1 & 2
a. Length = 6.75 m
b. Breadth = 4 m
c. Height = 4 m
d. The tank should be filled in 10 hours
2. Distance between each tank is 2 Meters
3. Arrows represent the direction of flow
4. Each tank as following dimensions –
a. Length = 3m
b. Breadth = 4 m
c. Height = 5 m
5. It’s important to show your final layout. You can use a handmade sketch or simple components using SMART DRAW or any other software of your
choice, but the idea should be clear and complete. Incomplete layouts will affect your grades.
6. Individual presentations and 1-1 Q&A sessions will be conducted after finalizing the date but the trainees have to submit the presentations
on Moodle on or before 12th of April 2025.
7. The placement of pumps, venturi meter, valves, etc. is purely based on your technical decisions. The schematic does not contain all the im-
portant components required to complete the fluid flow process.
4 | P a g e Water Filtration Plant
Limitations –
1. You cannot change the direction of flow.
2. You cannot increase the number of pipes. Each arrow is a pipe in Figure 1.
3. You cannot change the heads.
Your design should mainly consist of various activities that include pressure drop calculations selection of pumps design of venturi meter and selection of,
check valve the details of which are shown below:,
A. You are to size the pipelines and to select a suitable pump. The proposed piping layout is as per the attached schematic. You are given details of the,
required lengths of pipes and the number of bends involved to get the chilled water to each of the cooling coils. There are isolating valves around,
each piece of equipment so that maintenance work can be carried out. (LOs: 1 2 3 4),
B. You have also been asked to design a venturi flow meter a form of flow measurement device to be installed after the pump so that the total water,
flow can be measured on a continuous basis. You will need to demonstrate how the venturi will work. (LOs: 2,3)
C. Select the appropriate check valves which must be fitted before each coil at the supply lines according to all the engineering parameters of the system.
(LOs:2,4,5) Water Filtration Plant
D. Prepare a PowerPoint presentation file outlining your system design, including pipe and fittings sizing, pump and motor selection, design of the ven-
turi and selection of the check valves. (LOs: 1,2,3,4,5)