Recovery of a Clean Phosphorous from Sewage Sludge Ash by an Electrodialytic Process

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Abstract

Sewage sludge incineration is extensively practiced in European countries such as the Netherlands, Austria, and Germany, where legislative developments prohibit the direct spreading of sewage sludge on agricultural land. These and other countries opt for mandatory P recovery from the sewage sludge ash (SSA) from incineration since this type of ash has a very high phosphorous concentration (about 10% per weight). Since P is on the EU list for critical raw materials, this element should be recovered from the ash, but no technology is yet implemented for such recovery. This work focuses on the development of an electrodialytic method for the recovery of P from SSA.
Original languageEnglish
Title of host publication5th International Conference on Technologies & Business Models for Circular Economy : Book of Abstracts
EditorsSanja Potrč, Miloš Bogataj, Zdravko Kravanja, Zorka Novak Pintarič
Number of pages3
PublisherUniversity of Maribor
Publication date2022
Pages77-79
ISBN (Electronic)978-961-286-646-4
Publication statusPublished - 2022
Event5th International Conference on Technologies & Business Models for Circular Economy - Portorož, Slovenia
Duration: 12 Sept 202214 Sept 2022
Conference number: 5

Conference

Conference5th International Conference on Technologies & Business Models for Circular Economy
Number5
Country/TerritorySlovenia
CityPortorož
Period12/09/202214/09/2022

Bibliographical note

Horizon Europe Grant Agreement-101058162-AshCycle, the Danish EPA, and BIOFOS are thanked for their financial support.

Keywords

  • Phosphorous
  • Sewage sludge ash
  • Critical raw material
  • Secondary resource
  • Electrodialysis

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