[en] In the PhosForYou project, the PASCH process, formerly designed to recover phosphorous from sewage-sludge incineration ash, is extended to start from dried sewage sludge directly. One of the major steps in this process is the reactive extraction of heavy metals from a leach liquor, followed by fractional precipitation. The process is realized on pilot-plant scale and tested in bypass at waste-water treatment plants. The process param-eters will be optimized to maximize process efficiency depending on the local situation with respect to impurities and water content. The product is a phosphate, which can directly be used in fertilizer formulations.
Research Center/Unit :
Products, Environsment, and Processes - Department of Chemical Engineering
Disciplines :
Chemical engineering
Author, co-author :
Pfennig, Andreas ; Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Shariff, Zaheer Ahmed ; Université de Liège - ULiège > Department of Chemical Engineering > PEPs (Product, Environment, Processes)
Language :
English
Title :
Phosphorous from Sludge: Extraction Expertise at ULiège
