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Details van artikel 31 van 88 gevonden artikelen
| Titel: |
EXPERIENCES OF LONG-TERM DESTRATIFICATION IN A WATER SUPPLY IMPOUNDMENT IN CENTRAL ILLINOIS |
| Auteur: |
Raman, Raman K. |
| Verschenen in: |
Lake and reservoir management |
| Paginering: | Jaargang 2 (1986) nr. 1 pagina's 271-276 |
| Jaar: |
1986 |
| Inhoud: |
Lake Eureka, III., was created in 1942 primarily to serve as a water supply source for the city of Eureka. Because of complaints about taste and odor in the finished waters, the city abandoned the lake and switched to ground water as the water supply source in 1979. A detailed taste and odor investigation indicated that high concentrations of iron and manganese, and the dominance of blue-green algae in the lake waters, contributed to the problems in the finished waters. Lake destratification using a low-energy mechanical destratifier in the deepest part of the lake in combination with chelated copper sulfate application to control blue-green algae was tried in 1981 to enhance the lake water quality characteristics. The aerator has been found capable of destratifying the lake and maintaining adequate oxygen levels. Iron and manganese concentrations in the deep waters have been reduced by 95 to 97 percent from the predestratification levels. Chlorine demand values have been reduced by more than half, and problem-causing blue-green algae have been brought under control. The city reverted back to the lake as its water supply source in April 1982, saving 50 to 60 percent in the water treatment plant's annual operating costs over the past three years. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 31 van 88 gevonden artikelen
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