Impact of snowmelt inflow on temperature of sewage discharged to treatment plants

• Autorzy: Kaczor G. , Bugajski P.
• Języki publikacji: EN

Abstrakty

EN

The objective of our research was to evaluate the impact of spring snowmelt inflow occurring in separate sewer systems on the temperature of raw sewage discharged into selected treatment plants supporting up to 2000 PE. The results were expected to indicate the range of sewage undercooling due to inflow of the melting water and to evaluate how long this state persists. The research was carried out from 1 January 2010 to 30 April 2010 in five selected sewer systems. The obtained results showed significant influence of snowmelt inflow on sewage temperature in the sewer system. Inflow, which during snowmelt constitutes from 43 to 70% of daily discharge into treatment plants, caused the decrease of average daily sewage temperature in the sewer system: in Gdów by 2.0ºC, in Kostrze by 2.2ºC, in Sidzina by 3.0ºC, in Skotniki by 2.5ºC, and in Wadów by 2.0ºC. The lowest values of hourly temperature of raw sewage during melt-water inflow to the sewer system reached the following values: 5.4ºC in Gdów, 5.0ºC in Kostrze, 4.6ºC in Sidzina, and 5.0ºC in Skotniki and Wadów. At such low average daily sewage temperatures, biological processes of nitrogen compound removal will be inhibited or even stopped. The research showed that the decreased sewage temperature lasted for 16 days. In this period, insufficiently treated sewage may be dangerous to collector water. The presented results provide another argument for increasing efforts to find out the reasons for inflow to the sewer system.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2012
• Tom: 21
• Numer: 2
• Opis fizyczny: p.381-386,fig.,ref.

Twórcy

autor

Kaczor G.

• Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, Agricultural University in Kraków, Mickiewicza 24/28, 30-059 Kraków, Poland

autor

Bugajski P.

• Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, Agricultural University in Kraków, Mickiewicza 24/28, 30-059 Kraków, Poland

Bibliografia

• 1. HEIDRICH Z., KALENIK M,. PODEDWORNA J., STAŃKO G. Rural sanitation, Wydawnictwo Seidel-Przywecki Sp. z o. o., Warszawa, 2008 [In Polish].
• 2. KOTOWSKI A. The need to adapt the rules of sewage system dimensioning in Poland to the requirements of the standard PN-EN 752 and recommendations of the European Committee for Standardization, Gaz, Woda i Technika Sanitarna, SIGMA-NOT Sp. z o. o., 6, 20, 2006 [In Polish].
• 3. ŁOMOTOWSKI J., SZPINDOR A. Modern wastewater treatment systems, Arkady, Warszawa, 1999 [In Polish].
• 4. KACZOR G. Holes in the sewage canals’ hatches as one of the cause for the accidental water infiltration to the separate sewer system, Infrastruktura i Ekologia Terenów Wiejskich, 9, PAN Oddział w Krakowie, Kraków, pp. 155-163, 2009 [In Polish].
• 5. BŁAŻEJEWSKI R. Rural sewerage system, PZITS Oddział Wielkopolski, 2003 [In Polish].
• 6. KACZOR G., BERGEL T. The effect of incidental waters on pollution load in inflows to the sewage treatment plants and to the receivers of sewage. Przemysł Chemiczny, Sigma-Not, 87, (5), 476, 2008.
• 7. PECHER R. Infiltration in sewer system – a problem of wastewater management?, Korrespondenzabwasser, 12, (45), 2250, 1998.
• 8. SZPINDOR A. Water supply and sanitation village, Arkady, Warszawa, 1998 [In Polish].
• 9. TCHOBANOGLOUS G., BURTON F., STENSEL D. Wastewater Engineering. Treatment and Reuse, Metcalf & Eddy, McGraw-Hill Companies Inc., 2003.
• 10. KARPF C., KREBS P. Assessment of Extraneous Water Inflow in Separated Sewer Networks, Proc. 10th ICUD conference, Copenhagen/Danmark, 21-26 August, 2005.
• 11. KROISS H., PRENDL L. Impact of infiltration on sewage treatment plants, Band 140, 71, 1996.
• 12. FRANZ T., RUTSCH M., KREBS P., FREHMANN T., BERTRAND-KRAJEWSKI J.-L., CARDOSO M. A., ELLIS B., GIULIANELLI M., GUJER W., PLISKA Z., POLLERT J., PRYL K. Examination and evaluation of infiltration and exfiltration of permeable sewers – EU research project APUSS, KA Abwasser Abfall, 54, (4), 353, 2007.
• 13. ELLIS B., BERTRAND-KRAJEWSKI J. L. Assessing Infiltration and Exfiltration on the Performance of Urban Sewer Systems, IWA Publishing, 2010.
• 14. KACZOR G., SATORA S., A problem of incidental waters in rural sewerage systems of the Małopolska province, Inżynieria Rolnicza, 3 (45), tom 2, Komitet Techniki Rolniczej PAN, pp. 35-46, 2003 [In Polish].
• 15. MICHALSKA A., PECHER K. H. Operational and economic aspects of infiltration impact on the sewerage system and sewage treatment plant. Gewässerschutz – Wasser – Abwasser GWA; 177, 1, 2000.
• 16. FRANZ T. Spatial classification methods for efficient infiltration measurements and transfer of measuring results, Dissertation, Institut für Siedlungs- und Industriewasserwirtschaft, TU Dresden. Dresdner Bericht 28, 2007.
• 17. GAŠPARIKOVÁ E., KAPUSTA Š., BODIK I., DERCO J., KRATOCHVÍL K. Evaluation of Anaerobic-Aerobic Wastewater Treatment Plant Operations. Pol. J. Environ. Stud. 14, (1), 29, 2005.
• 18. KACZOR G., Influence of air temperature on sewage temperature in sewerage system and in biological reactor, Infrastruktura i Ekologia Terenow Wiejskich, 3, PAN Oddział w Krakowie, Kraków, pp. 129-137, 2008 [In Polish].
• 19. MIN TAO, FENG HE, DONG XU, MING LI, ZHENBIN WU. How Artificial Aeration Improved Sewage Treatment of an Integrated Vertical-Flow Constructed Wetland. Pol. J. Environ. Stud. 19, (1), 183, 2010.
• 20. HENZE M. Wastewater Treatment, Biological and Chemical Processes, Springer-Verlag Telos, 2002.
• 21. ARNOLD E., BOHM B., WILDEREM P. A. Application of activated sludge and biofilm sequencing batch reactor technology to treat reject water from sludge dewatering systems: a comparison, Water Science and Technology, 41, (1), 115, 2000.
• 22. Strategies for effective detection of rainwater and removal of damage to sewers. Guidelines to conduct effective selfcontrol, Ministerium für Landwirtschaft, Naturschutz und Umwelt. Freistaat Thüringen. www.thueringen.de (08.2010), 2005.
• 23. KACZOR G., BUGAJSKI P. The Influence of Incidental Waters on the Effectiveness of Pollution Reduction in Rural Wastewater Treatment Plant. Pol. J. Environ. Stud. 16, (2A), Part III, 450, 2007.