Phosphorus recycling from wastewater via chemical precipitation
Mende, Steven (2024)
2024
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2024060722025
https://urn.fi/URN:NBN:fi:amk-2024060722025
Tiivistelmä
Phosphorus (P) is a crucial element. It is an important element for the organism’s growth and is utilized by industries. Increasing demands for the element accelerate the usage and depletion of global reserves. Furthermore, excessive accumulation of the chemical in the environment causes a global problem.
The objective of this thesis is to concentrate on the phosphorus recovery process and the potential benefits of recovering. The chemical precipitation method is used for the recovery by adding precipitator compounds. The method explains the formation of high-quality fertilizer either as a direct soil ap-plication or as a component of the fertilizer industry. The parameters affecting the formation of the product as well as technologies implementing the method are described. The production of the wanted product required a liquid fraction rich in orthophosphate. Wastewater Treatment Plant (WWTP) facility presenting a potential source of phosphorus rich waste stream including sludge and liquid fractions. Transformation treatment is available in the facility which allows orthophosphate accumulation and generating liquid feedstock for the technology employing the chemical precipitation method.
The recovered product can supply a significant amount to cover the annual demand for the phosphorus chemical. Additionally, the recovery techniques for instance Ostara PEARL™ and DHV Crystallactor® can produce valuable fertilizer as an alternative to phosphates rock from the mining industry.
The objective of this thesis is to concentrate on the phosphorus recovery process and the potential benefits of recovering. The chemical precipitation method is used for the recovery by adding precipitator compounds. The method explains the formation of high-quality fertilizer either as a direct soil ap-plication or as a component of the fertilizer industry. The parameters affecting the formation of the product as well as technologies implementing the method are described. The production of the wanted product required a liquid fraction rich in orthophosphate. Wastewater Treatment Plant (WWTP) facility presenting a potential source of phosphorus rich waste stream including sludge and liquid fractions. Transformation treatment is available in the facility which allows orthophosphate accumulation and generating liquid feedstock for the technology employing the chemical precipitation method.
The recovered product can supply a significant amount to cover the annual demand for the phosphorus chemical. Additionally, the recovery techniques for instance Ostara PEARL™ and DHV Crystallactor® can produce valuable fertilizer as an alternative to phosphates rock from the mining industry.