The Gantt chart at team responsibilities were made to organize the work and spread the work out evenly throughout the project to match each group member's abilities and to spread the time out to complete the project on time.
Brainstorm
Sand
Activated Carbon
Cloth
Polyester Fiber
Sponge
Coffee Filter
Gravel
Activated Carbon
Cloth
Polyester Fiber
Sponge
Coffee Filter
Gravel
Test of Designs
Both designs both about the same final turbidity levels when tested. One of the designs also leaked but had a support while the other did not leak but had no support. Both designs also purified the water to about 65 NTU and also had a time of about 1.5 minutes, which clearly we need a new direction.
Revisions
When the two prototypes were built, we noticed that they both fitted on top each other. We decided to go with it. This may increase the time, but also allowed the turbidity levels to almost be cut in half. The leak was fixed and upward supports were added to help stability of the upper part. They are not attached for portability. This design allowed for the turbidity level to be reduced to about 30-40 NTU and a time to about 3 minutes.
ConclusionProducing a filter that is economical and uses local materials is harder than it seems to be at first. There is a lot of things to take considered within the project. There are also many different paths to take and one that is the best, but not always seen at first. Organization and communication is also key to building a project of any sort. If I did this project again, I would try a small engine fuel filter, they have fine threading for catching particulates.
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