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Pure water-naturally
Vegetarian Times, July-August, 2005
By installing 11,000 plants---many quite tiny--in three carefully designed ponds on a campus golf course, Purdue University microbiologists have created a system that filters chemicals out of the water naturally. The experiment strengthens the case for planned wetlands, especially near housing developments and office parks, report the researchers in the February 2005 issue of the journal Ecological Engineering.
Unlike houses, roads and other hard surfaces, water-dotted green spaces such as golf courses allow rain or overflow from farm fields to soak into the ground and drain into constructed streams, ponds and lakes, where pesticides and other harmful chemicals can be removed. In the five-year study, aluminum, ammonia, atrazine, nitrogen and phosphorus were all filtered out of the water.
COPYRIGHT 2005 Vegetarian Times, Inc. All rights reserved.
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