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Considering the increasingly stringent requirements on the quality of treated wastewater introduced into surface or ground water, it is reasonable to reduce the loads of biogenic compounds produced already at wastewater treatment plants in sludge treatment processes because sludge water produced in such treatment brings into the process cycle up to 20% more of nitrogen and phosphorus load. The paper presents the results of sludge water treatment in a reverse osmosis process. The concentration of biogenic compounds in sludge water was successfully reduced by 95%. The tests were made using a pilot installation and laboratory installation. The concentrate produced in the reverse osmosis was treated by precipitating nitrogen and phosphorus compounds in form of struvite (NH4)Mg(PO4)×6H2O that can be next used as a fertiliser.
Czasopismo
Rocznik
Tom
Strony
21--34
Opis fizyczny
Bibliogr.14 poz., rys.
Twórcy
autor
autor
- Faculty of Energy and Environmental Engineering, Silesian University of Technology, ul. Akademicka 2A, 44-100 Gliwice, krystyna.konieczny@polsl.pl
Bibliografia
- 1. Strous, M., Van Gervven, E., Zheng, P., Kuenen, J.G., Jettenm, S.M., (1997) Water Res., 31 (8), p. 1955;
- 2. Constantine, T., Shea, T., Johnson, B., Newer approaches for treating return liquors from anaerobic digestion (2005) IWA Spec. Conf. Nutrient Management in Wastewater Treatment Processes and Recycle Streams, pp. 455-464., Cracow;
- 3. Caffaz, S., Lubello, C., Canziani, R., Santianni, D., Autotrophic nitrogen removal from anaerobic supernatant of Florence s WWTP digesters, Newer approaches for treating return liquors from anaerobic digestion (2005) IWA Spec. Conf. Nutrient Management in Wastewater treatment Processes and Recycle Streams, pp. 397-406., Cracow;
- 4. Masloń, A., Tomaszek, J.A., (2007) Environ. Prot. Eng., 33 (2), p. 175;
- 5. Malei, J., Majewska, A., Boguski, A., (2002) Rocznik Ochr. Środ., 4, p. 11;
- 6. Myszograj, S., (2008) Inz. Ochr. Środ., 11 (2), p. 219;
- 7. Bridger, G., (2001) CEEP Scope Newsletter, 43, p. 3;
- 8. Kołtuniewicz, A.B., Drioli, E., (2008) Membranes in Clean Technologies. Theory and Practice, , Wiley, Weinheim;
- 9. Majewska-Nowak, K., (2007) Ochr. Środ., 2, p. 21;
- 10. Kowal, A., Świderska-Bróz, M., (2009) Purification of Water, pp. 311-312., PWN, Warsaw, in Polish;
- 11. Cheryan, M., (1998) Ultrafiltration and Microfiltration Handbook, , Technomic Publ. Comp., Lancaster;
- 12. Noworyta, A., Trusek-Holownia, A., (2001) Membrane Separations, , Agencja Wyd. ARGI, Wroclaw, in Polish;
- 13. Narebska, A., Membrany i membranowe techniki rozdziału (1997) Wyd. Uniw. Mikołaja Kopemika, , Torun;
- 14. Jaffer, Y., Clark, T.A., Pearce, P., Parsons, S.A., (2002) Water Res., 36, p. 1834
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BPW8-0019-0052