{"id":1234,"date":"2025-02-01T12:04:00","date_gmt":"2025-02-01T12:04:00","guid":{"rendered":"https:\/\/gwits.pl\/?p=1234"},"modified":"2026-03-02T23:29:52","modified_gmt":"2026-03-02T23:29:52","slug":"scieki-przemyslowe-jako-zewnetrzne-zrodlo-wegla-dla-procesu-denitryfikacji-w-miejskiej-oczyszczalni-sciekow-food-industry-wastewater-as-an-external-carbon-source-for-the-denitrificationprocess-in-a","status":"publish","type":"post","link":"https:\/\/gwits.pl\/en\/scieki-przemyslowe-jako-zewnetrzne-zrodlo-wegla-dla-procesu-denitryfikacji-w-miejskiej-oczyszczalni-sciekow-food-industry-wastewater-as-an-external-carbon-source-for-the-denitrificationprocess-in-a\/","title":{"rendered":"\u015acieki przemys\u0142owe jako zewn\u0119trzne \u017ar\u00f3d\u0142o w\u0119gla dla procesu denitryfikacji w miejskiej oczyszczalni \u015bciek\u00f3w \/ Food industry wastewater as an external carbon source for the denitrificationprocess in a municipal wastewater treatment plant"},"content":{"rendered":"\n
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Wiktor Gielniak \"ORCID<\/a>, Paulina Szulc-K\u0142osi\u0144ska \"ORCID<\/a>, Zbys\u0142aw Dymaczewski \"ORCID<\/a>, Joanna Je\u017c-Walkowiak \"ORCID<\/a><\/em><\/p>\n\n\n\n

DOI: 10.15199\/17.2025.2.4<\/strong>, GWiTS 2\/2025, luty 2025<\/p>\n\n\n\n

Pobierz PDF<\/a> (Open Access)<\/p>\n\n\n\n

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Streszczenie:<\/strong>
Nowa dyrektywa \u015bciekowa UE z listopada 2024 r. nak\u0142ada na oczyszczalnie \u015bciek\u00f3w szereg wymaga\u0144, w tym zaostrzone limity azotu i fosforu w odp\u0142ywie, d\u0105\u017cenie do samowystarczalno\u015bci energetycznej oraz raportowanie \u015bladu w\u0119glowego. Osi\u0105gni\u0119cie wymaganego st\u0119\u017cenia azotu w \u015bciekach oczyszczonych mo\u017ce wymaga\u0107 zwi\u0119kszenia efektywno\u015bci procesu denitryfikacji. W praktyce, aby zapewni\u0107 stabiln\u0105 i wydajn\u0105 denitryfikacj\u0119, do komory anoksycznej cz\u0119sto dawkuje si\u0119 dodatkowe \u017ar\u00f3d\u0142o \u0142atwo przyswajalnego w\u0119gla organicznego, takie jak metanol, lotne kwasy t\u0142uszczowe czy produkty komercyjne. W pracy przedstawiono wyniki bada\u0144 nad przydatno\u015bci\u0105 wybranych \u015bciek\u00f3w przemys\u0142owych jako alternatywnego \u017ar\u00f3d\u0142a w\u0119gla dla bakterii denitryfikacyjnych w jednej z oczyszczalni \u015bciek\u00f3w w Wielkopolsce. W pierwszym etapie przeanalizowano charakterystyk\u0119 \u015bciek\u00f3w dowo\u017conych od 51 podmiot\u00f3w przemys\u0142owo\u2011us\u0142ugowych, na podstawie czego wytypowano cztery zak\u0142ady do dalszych bada\u0144. W drugim etapie okre\u015blono szybko\u015b\u0107 usuwania azotan\u00f3w: bez dodatkowego \u017ar\u00f3d\u0142a w\u0119gla, z dodatkiem \u015brodka komercyjnego oraz z u\u017cyciem \u015bciek\u00f3w pochodz\u0105cych z przetw\u00f3rstwa rybnego, produkcji krem\u00f3w i lukr\u00f3w cukierniczych, produkcji alkoholu oraz z firmy cateringowej. Cho\u0107 \u015bcieki z poszczeg\u00f3lnych \u017ar\u00f3de\u0142 r\u00f3\u017cnie wp\u0142ywa\u0142y na proces, w ka\u017cdym z eksperyment\u00f3w uzyskana szybko\u015b\u0107 denitryfikacji przewy\u017csza\u0142a t\u0119 z pr\u00f3by kontrolnej. Badania laboratoryjne potwierdzi\u0142y wysok\u0105 przydatno\u015b\u0107 wybranych \u015bciek\u00f3w przemys\u0142owych do zwi\u0119kszenia efektywno\u015bci usuwania azotu w miejskiej oczyszczalni. Najwi\u0119kszymi przeszkodami we wdra\u017caniu rozwi\u0105zania w skali technicznej s\u0105 zmienno\u015b\u0107 sk\u0142adu, nieregularno\u015b\u0107 dostaw oraz na og\u00f3\u0142 ich niewystarczaj\u0105ca ilo\u015b\u0107.<\/p>\n\n\n\n

S\u0142owa kluczowe:<\/strong> oczyszczanie \u015bciek\u00f3w, denitryfikacja, \u017ar\u00f3d\u0142o w\u0119gla, \u015bcieki przemys\u0142owe.<\/em><\/p>\n\n\n\n

Abstract:<\/strong>
The new EU wastewater directive from November 2024 imposes several requirements on wastewater treatment plants, including more restrictive limits on nitrogen and phosphorus in the effluent, the pursuit of energy self\u2011sufficiency, and carbon footprint reporting. Achieving the required nitrogen concentration in treated wastewater may necessitate increasing the efficiency of the denitrification process. In practice, to ensure stable and effective denitrification, an additional source of readily biodegradable organic carbon\u2014such as methanol, volatile fatty acids, or commercial products\u2014is often added to the anoxic chamber. This paper presents the results of research on the suitability of selected industrial wastewater streams as an alternative carbon source for denitrifying bacteria in a wastewater treatment plant in the Greater Poland region. In the first stage, wastewater delivered from 51 industrial and service entities was analysed, leading to the selection of four companies whose wastewater was used for further testing. In the second stage, the nitrate removal rate was determined for the process without an external carbon source, with a commercial additive, and using wastewater from fish processing, confectionery cream and icing production, alcohol production, and catering services. Although wastewater from individual sources improved the process to varying degrees, in all experiments the denitrification rate exceeded that of the control reactor. Laboratory\u2011scale studies demonstrated the high suitability of selected industrial wastewater streams for enhancing nitrogen removal efficiency in a municipal wastewater treatment plant. The main obstacles to technical\u2011scale implementation are the variability of wastewater composition, irregular deliveries, and typically insufficient volume relative to demand.<\/p>\n\n\n\n

Keywords:<\/strong> wastewater treatment, denitrification, carbon source, industrial wastewater.<\/em><\/p>\n\n\n\n

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Bibliografia<\/strong><\/p>\n\n\n\n

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[3] Rada Unii Europejskiej. (2024). PE-85-2024-INIT. https:\/\/data.consilium.europa.eu\/doc\/document\/PE-85-2024-INIT\/pl\/pdf<\/a><\/p>\n\n\n\n

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[8] Liwarska-Bizukoj\u0107, E., Chojnacki, J., Klink, M., Olejnik, D. (2018). Effect of the type of the external carbon source on denitrification kinetics of wastewater. Desalination and Water Treatment, 101<\/em>, 143\u2013150.<\/p>\n\n\n\n

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[10] M\u0105kinia, J., Czerwionka, K. (2013). Wytyczne oceny alternatywnych \u017ar\u00f3de\u0142 w\u0119gla. Politechnika Gda\u0144ska.<\/p>\n\n\n\n

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[17] Zheng, Z., Li, Y., Li, J., Zhang, Y., Bian, W., Wei, J., Zhao, B., Yang, J. (2017). Effects of carbon sources, COD\/NO2\u2212-N ratios and temperature on the nitrogen removal performance of the simultaneous partial nitrification, anammox and denitrification (SNAD) biofilm. Water Science and Technology, 75<\/em>, 1712\u20131721.<\/p>\n\n\n\n

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Wiktor Gielniak, Paulina Szulc-K\u0142osi\u0144ska, Zbys\u0142aw Dymaczewski, Joanna Je\u017c-Walkowiak<\/div>\n

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