Wednesday, November 13, 2013

Dry Percolation Rate

       For our dry percolation test we placed 50 mL of water in each funnel full of a substance one at a time. We let the water trickle through the substance that was in the filter at that particular time. Once one minute had passed, we removed the top portion of the bottle that contained the filter from the bottom. We then measured the water that was in the bottom part of the bottle. Using the amount of water that had passed through and the standard minute, the percolation rate was solved for.

       Above is the clay portion of the percolation test. The clay's percolation rate was 0.22 cm³/sec. The water flowed through the clay at a fairly slow, but stable rate. The liquid that was produced was very opaque because it picked up many of the clay particles but did not release them.



       This is our sand portion of the percolation test. The sand's percolation rate was 0.2 cm³/sec. The water flowed through the sand very quickly and then after a lot of water flowed through it dripped extremely slowly. Some sand particles were picked up by the water as well w because the water is not as clear as it was when is was poured on the sand.



       This is the soil portion of our percolation test. Our soil's percolation rate was 0.27 cm³/ml. The water flowed through our soil sample at a steady and medium pace. The resulting water was not quite as opaque as the clay, but more closer to the sand water in appearance, so we can make the assumption that it picked up sand like particles. 

       We know our soil is a mix of both sand and clay because it flowed at a faster rate, like the sand percolation, but it also flowed at a standard rate, like the clay percolation.

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