Limited water supply and increasing water demand are key problems facing highly populated areas. If the
possible source of water is highly polluted, treatment applications may be costly. To overcome this
problem, passive, on-site treatment techniques such as river bank filtration and aquifer recharge and
recovery increasingly attract interest. The scope of a current, on-going project envisions the use of South
Platte River as a water source for the City of Aurora in Colorado. Water treatment alternatives include the
application of river bank filtration (RBF) and aquifer recharge and recovery (ARR) in series as the initial
steps of a multi-barrier treatment approach. The study consists of examining removal efficiencies and
kinetics of observed macro and micro pollutants in the South Platte River. An important and potentially
soon-to-be regulated contaminant, perchlorate was studied in terms of the removal mechanism, efficiency
and kinetics through RBF and ARR. An analytical method using HPLC/MS TOF was developed for
quantifying perchlorate. Field and column studies were conducted to simulate RBF and ARR. Column
studies also examined the possible benefits of water treatment residual as an amendment to ARR for
increasing biodegradability and adsorption. Results of the study showed that both RBF and ARR can be
used as an appropriate treatment for perchlorate removal as long as sufficient electron donors (e.g.
carbon) are present in the environment. Includes 31 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 520 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 17 |
| Published : | 11/01/2007 |
