Nitrate contamination of drinking water supplies is a significant concern to water systems
throughout the world, predominately in areas with significant agricultural activity.
Perchlorate contamination, while not as widespread, is also a source of significant public
health concern.
Biologically active permeable reactive barriers have been successfully employed to treat
both of these contaminants. Unlike some other biological processes, permeable reactive
barriers provide stable operations over the long term with minimal, if any, need for
operator intervention. Permeable reactive barriers are a continuation of recent trends in
the drinking water profession that recognize the benefits of subsurface processes to
reliably and inexpensively remove pathogens, organic contaminants, and provide other
water quality benefits. The most common treatment processes considered for nitrate and perchlorate removal are
similar. These processes include ion exchange, electrodialysis, and reverse osmosis. In
addition, engineered above-grade biological treatment processes are sometimes
considered for nitrate and perchlorate treatment. Ion exchange, reverse osmosis,
electrodialysis, and biological denitrification have all been applied at full-scale for the
removal of nitrate from drinking water. Includes 30 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 820 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 11/01/2008 |
