American Society of Civil Engineers


Release of Impurities from Melting Snow Made from Treated Municipal Wastewater


by Jarmo Sallanko, (Lab. Mgr., Dept. of Process and Envir. Engrg., Univ. of Oulu, P.O. Box 4300, 90014 Univ. of Oulu, Finland. E-mail: jarmo.sallanko@oulu.fi) and Kirsi-Marja Haanpää, (Researcher, Dept. of Process and Envir. Engrg., Univ. of Oulu, P.O. Box 4300, 90014 Univ. of Oulu, Finland. E-mail: kirsimar@mail.student.oulu.fi)

Journal of Cold Regions Engineering, Vol. 22, No. 2, June 2008, pp. 54-61, (doi:  http://dx.doi.org/10.1061/(ASCE)0887-381X(2008)22:2(54))

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Document type: Journal Paper
Abstract: To make snow from treated municipal wastewater is one possible polishing treatment method that can be used in cold climates. In this study, the behavior of an artificial snow pile made from treated wastewater was studied. The primary focus of the study was the release of residual contaminants into the meltwaters. It was found that the first meltwaters of the snow pack are the most concentrated with contaminants. The first 30% of the meltwaters from the snow storage area included 50% of all the impurities held in the snow pack.


ASCE Subject Headings:
Freezing
Wastewater management
Municipal engineering
Wetlands
Pollutants
Snow
Runoff