All Stories

  1. Energy Efficiency and Strategic EMS Practices in the Automotive Sector of Poland’s Silesian Voivodeship

    Article • Energies, August 2025, MDPI AG

    Dr Klaudiusz Grübel

  2. The possibility of the neutralisation and precipitation of heavy metals in industrial wastewater from oil emulsion processing

    Article • Journal of Ecological Engineering, June 2025, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  3. Heavy Metal Control and Dry Matter Assessment in Digested Sewage Sludge for Biogas Production

    Article • Energies, May 2025, MDPI AG

    Dr Klaudiusz Grübel

  4. RISK MANAGEMENT ON THE EXAMPLE OF THE WATER AND SEWAGE INDUSTRY. SELECTED ASPECTS

    Article • Zeszyty Naukowe SGSP, February 2025, Index Copernicus

    Dr Klaudiusz Grübel

  5. The role of energy menagement systems in the energy security of an enterprise

    Article • Journal of Ecological Engineering, February 2025, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  6. Examining the Potential of Biogas: A Pathway from Post-Fermented Waste into Energy in a Wastewater Treatment Plant

    Article • Energies, November 2024, MDPI AG

    Dr Klaudiusz Grübel

  7. ENERGY MANAGEMENT SYSTEM (EMS) AS A TOOL IN LIMITING THE COAL TRACE IN INDUSTRY

    Article • Zeszyty Naukowe SGSP, May 2024, Index Copernicus

    Dr Klaudiusz Grübel

  8. Foreword

    Article • January 2024, Fire University

    Dr Klaudiusz Grübel

  9. The effect of pre-treatment and anaerobic digestion for pathogens reduction in agricultural utilization of sewage sludge

    Article • Environmental Science and Pollution Research, September 2022, Springer Science + Business Media

    Dr Klaudiusz Grübel

  10. Activation of Peroxydisulfate by Bimetallic Nano Zero-Valent Iron for Waste-Activated Sludge Disintegration

    Article • Catalysts, May 2022, MDPI AG

    Dr Klaudiusz Grübel

  11. Alkalization as a method of preliminary hydrolysis of waste activated sludge before the anaerobic digestion process

    Article • Polis Journal of Materials and Environmental Engineering, January 2021, Akademia Techniczno-Humanistyczna w Bielsku-Bialej

    Dr Klaudiusz Grübel

  12. UV-Catalyzed Persulfate Oxidation of an Anthraquinone Based Dye

    Article • Catalysts, April 2020, MDPI AG

    Dr Klaudiusz Grübel

  13. The use of hybrid disintegration of activated sludge to improve anaerobic stabilization process

    Article • Inżynieria Ekologiczna, March 2020, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  14. Microwave-assisted sustainable co-digestion of sewage sludge and rapeseed cakes

    Article • Energy Conversion and Management, November 2019, Elsevier

    Dr Klaudiusz Grübel

  15. Waste-activated sludge disruption by dry ice: bench scale study and evaluation of heat phase transformations

    Article • Environmental Science and Pollution Research, July 2019, Springer Science + Business Media

    Dr Klaudiusz Grübel

  16. Improvement of the thermophilic anaerobic digestion and hygienisation of waste activated sludge by synergistic pretreatment

    Article • Journal of Environmental Science and Health Part A, February 2019, Taylor & Francis

    Dr Klaudiusz Grübel

  17. Disintegration of Wastewater Activated Sludge (WAS) for Improved Biogas Production

    Article • Energies, December 2018, MDPI AG

    Professor Rajender S Varma, Dr Klaudiusz Grübel

  18. Integrated Production of Biofuels and Succinic Acid from Biomass after Thermochemical Pretreatments

    Article • Ecological Chemistry and Engineering S, December 2018, De Gruyter

    Dr Klaudiusz Grübel

  19. Disintegration of Wastewater Activated Sludge (WAS) for Improved Biogas Production: A Mini Review

    Article • November 2018, MDPI AG

    Dr Klaudiusz Grübel

  20. Synergetic disintegration of waste activated sludge: improvement of the anaerobic digestion and hygienization of sludge

    Article • Journal of Environmental Science and Health Part A, October 2018, Taylor & Francis

    Dr Klaudiusz Grübel

  21. A new method for assessment of the sludge disintegration degree with the use of differential centrifugal sedimentation

    Article • Environmental Technology, May 2018, Taylor & Francis

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  22. Chemistry of persulfates in water and wastewater treatment: A review

    Article • Chemical Engineering Journal, December 2017, Elsevier

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  23. REMOVE AND RELEASE OF NUTRIENTS AFTER HYBRID PRE-TREATMENT OF ACTIVATED SLUDGE FOAM

    Article • Inżynieria Ekologiczna, February 2017, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  24. Working on Single Pass Freeze Desalination, very cost effective

    Article • January 2017, Desalination Publications

    Dr Klaudiusz Grübel

  25. Utilization of membrane processes for separation of succinic acid after fermentation of Miscanthus biomass

    Article • January 2017, Desalination Publications

    Dr Klaudiusz Grübel

  26. Study of the biodegradability of polylactide fibers in wastewater treatment processes

    Article • Polimery, January 2017, Industrial Chemistry Research Institute

    Dr Klaudiusz Grübel

  27. Disintegration as a key-step in pre-treatment of surplus activated sludge

    Article • Journal of Water Chemistry and Technology, January 2017, Allerton Press

    Dr Klaudiusz Grübel

  28. Low intensity surplus activated sludge pretreatment before anaerobic digestion

    Article • Archives of Environmental Protection, August 2016, De Gruyter

    Dr Klaudiusz Grübel

  29. Indirect methods of dried sewage sludge contamination assessments

    Article • Journal of Environmental Science and Health Part A, May 2016, Taylor & Francis

    Dr Klaudiusz Grübel

  30. Investigation of the effectiveness of nutrient release from sludge foam after hybrid pretreatment processes by IR analysis and EDX Quantification

    Article • Environmental Technology, May 2016, Taylor & Francis

    Dr Klaudiusz Grübel

  31. A novel approach for simultaneous improvement of dewaterability, post-digestion liquor properties and toluene removal from anaerobically digested sludge

    Article • Chemical Engineering Journal, May 2016, Elsevier

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  32. The Impact of Oxone on Disintegration and Dewaterability of Waste Activated Sludge

    Article • Water Environment Research, February 2016, Wiley

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  33. Efficiency of Biological Phosphorus Removal by Filamentous Bacteria

    Article • Chemistry-Didactics-Ecology-Metrology, January 2016, De Gruyter

    Dr Klaudiusz Grübel

  34. EVALUATION OF CONTAMINATION OF DRIED SEWAGE SLUDGE AND SOLID BY-PRODUCTS OF DRIED SEWAGE SLUDGE GASIFICATION BY INFRARED SPECTROSCOPY METHOD

    Article • Inżynieria Ekologiczna, January 2016, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  35. The impact of peroxydisulphate and peroxymonosulphate on disintegration and settleability of activated sludge

    Article • Environmental Technology, November 2015, Taylor & Francis

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  36. Simple spectrophotometric determination of monopersulfate

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, October 2015, Elsevier

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  37. Alkaline solubilisation of waste activated sludge (WAS) for soluble organic substrate – (SCOD) production / Tworzenie się rozpuszczalnego substratu organicznego podczas zasadowego rozpuszczania osadów ściekowych

    Article • Archives of Environmental Protection, January 2015, De Gruyter

    Dr Klaudiusz Grübel

  38. Impact of peroxydisulphate on disintegration and sedimentation properties of municipal wastewater activated sludge

    Article • Chemical Papers, January 2015, Springer Science + Business Media

    Dr Stanisław Wacławek, Dr Klaudiusz Grübel

  39. Considerations of Impact of Venturi Effect on Mesophilic Digestion

    Article • Ecological Chemistry and Engineering S, January 2015, De Gruyter

    Dr Klaudiusz Grübel

  40. Hybrid alkali-hydrodynamic disintegration of waste-activated sludge before two-stage anaerobic digestion process

    Article • Environmental Science and Pollution Research, October 2014, Springer Science + Business Media

    Dr Klaudiusz Grübel

  41. Chemical precipitation and ammonia air stripping as effective pre-treatment methods before membrane filtration of co-digestion effluents

    Article • Desalination and Water Treatment, August 2014, Taylor & Francis

    Dr Klaudiusz Grübel

  42. Post-Digestion Liquor Treatment in the Method Combining Chemical Precipitation with Reverse Osmosis

    Article • Archives of Environmental Protection, January 2014, De Gruyter

    Dr Klaudiusz Grübel

  43. Nitrogen in the Process of Waste Activated Sludge Anaerobic Digestion

    Article • Archives of Environmental Protection, January 2014, De Gruyter

    Dr Klaudiusz Grübel

  44. Mesophilic-thermophilic fermentation process of waste activated sludge after hybrid disintegration

    Article • Ecological Chemistry and Engineering S, January 2014, De Gruyter

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  45. Influence of Microwave Pre-Treatment on the Digestion and Higienisation of Waste Activated Sludge/Wpływ Dezintegracji Mikrofalowej Na Proces Fermentacji Oraz Higienizacji Nadmiernych Osadów Ściekowych

    Article • Ecological Chemistry and Engineering S, January 2014, De Gruyter

    Dr Klaudiusz Grübel

  46. Infrared wave analysis after hydrodynamic and acoustic cavitation as effective method of confirming sewage sludge destruction

    Article • Journal of Environmental Science and Health Part A, October 2013, Taylor & Francis

    Dr Klaudiusz Grübel

  47. Impact of Alkalization of Surplus Activated Sludge on Biogas Production

    Article • Ecological Chemistry and Engineering S, January 2013, De Gruyter

    Dr Klaudiusz Grübel, Dr Stanisław Wacławek

  48. THE SEQUENTIAL WATER TREATMENT CONTAINING MYCOESTROGENS IN PHOTOCATALYSIS AND NANOFILTRATION PROCESSES

    Article • Inżynieria Ekologiczna, January 2013, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  49. ELIMINATION OF CLOSTRIDIUM PERFRINGENS DURING SURPLUS ACTIVATED SLUDGE HANDLING

    Article • Inżynieria Ekologiczna, January 2013, Wydawnictwo Naukowe Gabriel Borowski (WNGB)

    Dr Klaudiusz Grübel

  50. Hygienisation of Surplus Activated Sludge by Hydrodynamic Cavitation

    Article • Ecological Chemistry and Engineering S, January 2012, De Gruyter

    Dr Klaudiusz Grübel

  51. Use of Hydrodynamic Disintegration to Accelerate Anaerobic Digestion of Surplus Activated Sludge

    Article • Water Environment Research, December 2009, Wiley

    Dr Klaudiusz Grübel

  52. Enhanced Biological Phosphorus Removal and Recovery

    Article • Water Environment Research, July 2008, Wiley

    Dr Klaudiusz Grübel