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Floating Flocs Meeting Minutes

Spring 2009 Minutes

April 10, 2009

Working Group: Sand Filter

Accomplishments
  • Wrote meeting minutes
  • Built and connected the bubble collector container
  • Reconfigure the Sand Filter Diagram; see Figure
  • Performed the sugar test
  • Attached the water level indicator to paper with red tape to make water level more visible
Metrics
  • Reprogram process Controller: add a pressure sensor, two more values: one for air and the other for water out.
  • Perform sugar test to confirm that the dissolved oxygen has been stripped out of the water.
Outcomes
  • The Bubble Collector Container is air tight. We tested it by placing the whole container with air into a sink full of water. No air bubble leak out of the container.
  • Sugar test: tiny bubbles formed in tap water (supersaturated) when sugar was added.
Issues
  • Need to collect lots of data and test grain sizes