Result with impact on practice detail

Utilization of energy from thermal treatment of sludge

BORÁŇ, J.; HOUDKOVÁ, L.; STEHLÍK, P.

Original Title

Utilization of energy from thermal treatment of sludge

English Title

Utilization of energy from thermal treatment of sludge

Type

Audiovisual work

Original Abstract

Considering the continuing depletion of fossil fuel reserves and growth of consumption, it is becoming more important to search for new energy sources. Experience shows sewage sludge as a suitable alternative energy source. In this contribution, several selected options for sludge-to-energy exploitation in sludge treatment sections of wastewater treatment plants (WWTP) are assessed. Among key factors influencing choice of sludge treatment technology belongs namely its heating value. A crucial parameter in evaluation of mass and energy fluxes is the level of attainable de-watering. The following three options are presented and assessed in this work: - 1st option - anaerobic digestion of mixed raw sludge with subsequent heat and power cogeneration from obtained biogas, - 2nd option - combustion of mixed raw sludge with utilization of energy contained in flue gases, - 3rd option - combustion of digested sludge combined with utilisation of energy contained in biogas and flue gases.

English abstract

Considering the continuing depletion of fossil fuel reserves and growth of consumption, it is becoming more important to search for new energy sources. Experience shows sewage sludge as a suitable alternative energy source. In this contribution, several selected options for sludge-to-energy exploitation in sludge treatment sections of wastewater treatment plants (WWTP) are assessed. Among key factors influencing choice of sludge treatment technology belongs namely its heating value. A crucial parameter in evaluation of mass and energy fluxes is the level of attainable de-watering. The following three options are presented and assessed in this work: - 1st option - anaerobic digestion of mixed raw sludge with subsequent heat and power cogeneration from obtained biogas, - 2nd option - combustion of mixed raw sludge with utilization of energy contained in flue gases, - 3rd option - combustion of digested sludge combined with utilisation of energy contained in biogas and flue gases.

Keywords

sewage sludge; energy balance; thermal treatment

Key words in English

sewage sludge; energy balance; thermal treatment

Authors

BORÁŇ, J.; HOUDKOVÁ, L.; STEHLÍK, P.

Released

04.06.2007

Publisher

Faculty of Mechanical Engineering and Naval Architecture, Zagreb

Location

Zagreb

ISBN

978-953-6313-87-7

Book

CD Proceedings

Edition

1

Pages count

11

BibTex

@misc{BUT63883,
  author="Jaroslav {Boráň} and Lucie {Houdková} and Petr {Stehlík}",
  title="Utilization of energy from thermal treatment of sludge",
  booktitle="CD Proceedings",
  year="2007",
  series="1",
  edition="1",
  pages="11",
  publisher="Faculty of Mechanical Engineering and Naval Architecture, Zagreb",
  address="Zagreb",
  isbn="978-953-6313-87-7",
  note="Audiovisual work"
}