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Fall 2016's team tested differences in head loss when coagulant was added to the system with and without clay, to analyse whether higher turbidities decreased head loss. From replicating these experiments, the current team decided to build a coiled flocculator with 50 cm of headloss and a residence time of 1 minute, more like what is actually used in an AguaClara plant. However, the focus was later on moved back to the original flocculator. One important conclusion was a confirmation that the microbore tubing flocculator can be used as a tool to measure free coagulant by means of measuring headloss. In addition the team built a contact chamber with a design parameter of the ratio of total surface area of clay to surface area of the chamber. Experiments with this contact chamber and the microbore flocculator suggest that the former does help reduce coagulant loss in the flocculator. However, the dynamics of the coagulant within the contact chamber warrant further research . |
Fall 2017
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Fall 2017 team aims to design a contact chamber that minimizes contact of incoming fluid with the chamber walls. The length of the contact chamber is set to be approximately 10D. The team varied the residence time in the contact chamebr by varying D while keeping L/D constant. |
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Members Spring 2016Meng Zu - mz436@cornell.edu Jillian Whiting - jpw236@cornell.edu Aditi Athavale - asa85@cornell.edu |
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Members Spring 2017Philip Akpan - pa328@cornell.edu Karin Teuffer - kt428@cornell.edu Grace Zhang - tz76@cornell.edu |
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Members Fall 2017Cheer Tsang - ct542@cornell.edu Yeonjin Yun - yy374@cornell.edu Benjamin Gassaway - bsg73@cornell.edu |
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