Letting Soils Solve Sewer Problems

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The Soil Science Society of America recently published an interesting article outlining yet another use of soil in today’s infrastructure.

The article reports on Sally Brown, a Professor at the School of Environmental and Forest Services and the University of Washington, encouraging the use of bioretention basins as opposed to the sometimes harmful or expensive process of sewer drainage to rivers and streams.

Bioretention is defined as:  the process in which contaminants and sedimentation are removed from stormwater runoff. Stormwater is collected into the treatment area which consists of a grass buffer strip, sand bed, ponding area, organic layer or mulch layer, planting soil, and plants.

Here are some diagrams and photos of bioretention basins for visualization: VASWMBMPSpec9BIORETENTION_clip_image014.gif

source: www.vwrrc.vt.edu

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source: tourguide.cal.msu.edu

It is easy to see how soils naturally filtering ability would be useful in this situation!

Read the full article at:

https://www.soils.org/discover-soils/story/plants-soil-take-streets

 

by Sabrina Kelch – VP

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