Effluent Dispersion Measurements Under Sea Ice

by J. M. Colonell, Entrix Inc, Achorage, AK, USA,
A. D. Berry, Entrix Inc, Achorage, AK, USA,

Document Type: Proceeding Paper

Part of: Cold Regions Engineering


Field measurements of the dispersion of effluent from the Seawater Treatment Plant (STP) at Prudhoe Bay, Alaska, were made during April 1985. The primary objective was to determine whether dilution under the sea-ice canopy was adequate to meet discharge permit requirements. A secondary objective was to examine the character and efficacy of under-ice dispersion processes. The minimum effluent dilution at the mixing zone boundary (1000 ft (305 m) from the diffuser) was approximately 20:1 under the low discharge rate, and 16:1 under the high discharge rate.

Subject Headings: Water treatment plants | Effluents | Seas and oceans | Ice | Dilution | Salt water | Sea water | Water treatment | Alaska | United States

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