Reclaimed phosphorus commodity reserve from water resource recovery facilities—A strategic regional concept towards phosphorus recovery

摘要: Abstract Despite all the right reasons for phosphorus (P) recovery, many water resource recovery facilities (WRRFs), especially small WRRFs, cannot afford to implement P technologies. This work systematically evaluated cost impacts of recovering into fertilizer form from 80 major WRRFs in Chicagoland area. Using a 20-year present worth analysis, results indicate that it would US$21 billion recover struvite form. Based on unit analysis ($ per kg recovered), biosolids is cost-prohibitive due high energy demand. sludge liquor economically viable but only up 30% influent load can be recovered. ashes comparable with or de-facto by land application perspective has highest potential (up 90% loads) and lessens increasing concern transferring emerging contaminants crops through application. leads novel approach centralized, regional facility where sizes “dispose” their incineration recovered as calcium phosphate stored monofill commodity reserve future use. paper proved concept building centralized justifiable within region.