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Treating Industrial Wastewaters Naturally |
| Section: NATURAL SCIENCE / AT THE EDGE |
| Author: Christopher R. Powicki |
| Publication: The world & I online |
| Issue Date: 1/1/1998 |
| Size: 2,554 Words, 18,348 Characters |
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FOOTNOTE: Adapted with permission from the EPRI Journal, July/August 1997.
Wetlands are among the most productive of natural ecosystems, sharing the characteristics of terrestrial and aquatic environments and acting as buffers between them. In these transition zones, plants and microorganisms interact with water and sediments, reducing the biological, chemical, and physical impacts of the intersecting ecosystems on one another while fueling wetland productivity.
Human waste streams have naturally run into wetlands for thousands of years, from ancient civilizations in China, Mexico, and Egypt up to the present. Thus, wetland processes have been protecting surface waters from terrestrial discharges for all this time, but wetlands' purification potential was not formally recognized unti...
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...at natural biological, physical, and chemical treatment processes exist for every wastewater challenge; we need only identify, duplicate, amplify, and accelerate them. Our goal is to develop an industry-specific knowledge and experience base now, ensuring the intelligent design and engineering of passive, low-cost systems to meet future discharge restrictions, regardless of their stringency."
(812 of 18,348 characters)
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