Ferric oxide-containing waterworks sludge can be used to reduce the formation of hydrogen sulfide during anaerobic digestion. The ferric compound is reduced biochemically in digester and forms insoluble pyrite sludge. Virgin chloride often solve problem. Since 2013, Sydvatten AB has supplied a growing number digestion plants Sweden with ferric-containing dewatered derived from drinking water tr...

Separately collected organic fraction of municipal solid waste, also known as biowaste, is typically used to fill the available capacity digesters at wastewater treatment plants. However, this approach might impair use ensuing digestate for fertilizer production due presence sewage sludge, a contaminated substrate. Worldwide, unsorted household i.e. residual still disposed in landfills or incin...

Vivianite (Fe3(PO4)2?8H2O) is a potential phosphorus (P) recovery product from wastewater treatment plants (WWTPs). However, routine methods for quantification of vivianite bound P (vivianite-P) are needed to establish the link between formation and operating conditions, as current approaches require specialized instrumentation (Mössbauer or synchrotron). This study modified conventional sequen...