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Abstrakty
Because the application of pressure in electro-dewatering of wastewater sludge (and consequent compression) affects processes of electroosmosis and electrophoresis, the study aimed at determining the effect of vacuum and constant electric field on the specific resistance of sludge and quality of filtrate. It was found that both the current intensity and direction affects the biogen content in sludge dewatering filtrate. An increase in the intensity of the current applied to the filtering barrier was accompanied by an increase in the effectiveness of the removal of ammonium nitrogen (filtering barrier as an anode) and orthophosphates (filtering barrier as a cathode). A constant electric field was shown to considerably affect the specific resistance of sludge filtration.
Czasopismo
Rocznik
Tom
Strony
93--100
Opis fizyczny
Bibliogr. 17 poz., tab., rys.
Twórcy
autor
- Department of Environment Protection Engineering, University of Warmia and Mazury in Olsztyn, ul. Warszawska 117A, 10-701 Olsztyn-Kortowo, marekryn@uwm.edu.pl
Bibliografia
- [1]. Rak, J.R., Kucharski, B., (2009) Environ. Prot. Eng, 35 (2), p. 15;
- [2]. Bien, J., Kamizel, A.T., Kowalczyk, M., Mrowiec, M., (2009) Environ. Prot. Eng, 35 (2), p. 67;
- [3]. Debowski, M., Zielinski, M., Krzemieniewski, M., (2008) Ochr. Środ, 30 (2), p. 43;
- [4]. Ruth, B.F., Montillon, G.H., Montonna, R.E., (1933) Ind. Eng. Chem, 25 (1), p. 76;
- [5]. Sorensen, P.B., Hansen, J.A., (1993) Water Sci. Techn, 28 (1), p. 133;
- [6]. Sorensen, P.B., Moldrup, P., Hansen, J.A., (1996) Chem. Eng. Sci, 51 (6), p. 967;
- [7]. Tiller, F.M., Green, T.C., (1973) AIChE J., 19 (6), p. 1266;
- [8]. Barton, W.A., Miler, S.A., Veal, C.J., (1999) DryingTechn, 17 (3), p. 497;
- [9]. Grundl, T., Michalski, P., (1996) Water Res, 30, p. 811;
- [10]. Saveyn, H., Pauwels, G., Timmerman, R., Van Der Meeren, P., (2005) Water Res, 39, p. 3012;
- [11]. Hill, R., (2006) J. Fluid Mech, 551, p. 405;
- [12]. Yao, S., Santiago, J., (2003) J. Colloid Int. Sci, 268, p. 133;
- [13]. Yao, S., Hertzog, D., Zeng, S., Mikkelsen, J.C., Santiago, J., (2003) J. Colloid Int. Sci, 268, p. 143;
- [14]. Gingerich, I., Neufeld, R., Thomas, T., (1999) Water Environ. Res, 71 (3), p. 267;
- [15]. Raats, M.H.M., Van Diemen, A.J.G., Laven, J., Stein, H.N., (2010) Coli. Surf. A: Physicochem. Eng. Aspects, 210, p. 231;
- [16]. (1985) Standard Methods for the Examination of Water and Wastewater, p. 1268., Am. Public Health Assoc, Washington;
- [17]. Saveyn, H., Van Der, M.P., Hofmann, R., Stahl, W., (2005) Chem. Eng. Sci, 60, p. 6768
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW8-0019-0040