Sewage sludge: pollutant and raw material source at the same time (German article)
Sewage sludge mono-incineration for recycling phosphorus – Thermal sewage sludge utilization as the basis for recycling the vital resource phosphorus
Sewage sludge is the waste of wastewater treatment in which pollutants are concentrated. In addition to pollutants, they also filter phosphorus from wastewater. An oversupply of phosphates leads to the eutrophication of streams, rivers and lakes and ultimately to the death of water bodies. The fact that phosphorus is filtered out during wastewater treatment because of its serious consequences for the aquatic ecosystem in turn makes sewage sludge an important source of raw materials. It is this ambivalence of pollutant and raw material source that has led to thinking about alternative disposal methods. One such is sewage sludge mono-incineration. (Article in German language)
- authors: Jan Kirchhof, Head of Sales, Glatt Ingenieurtechnik and Andreas Dous, Head of Sewage Sludge Utilization and Residuals, EEW Energy from Waste
- originally published in the magazine CITplus, issue 7-8/2023, Wiley-VCH Verlag GmbH & Co. KGaA
Further information on this topic and related topics can also be found in the following publications:
Published article: ‘Growing the German phosphate industry’. PDF, English
Published article: ‘Improved performance for crop protection products’, PDF, English
Published article: ‘Like a phoenix from the ashes’. A recovery technology that releases phosphate from sewage sludge ashes and converts it into ready-to-use fertilizers. PDF, English
Published article: ‘Fomulation For Success – Fluid Bed Systemes as Key for the Production of Speciality Fertilizers’, PDF, English
Published article: A Fluid Bed Approach – Case study on the economical production of urea-based fertilizers can be achieved using fluidised bed technology, PDF, English