Removal of sewage phosphorus by adsorption and mineral precipitation, with recovery as a fertilizing soil amendment

• Published in: Water science and technology Vol. 77; no. 8; pp. 1967 - 1978
• Main Authors: Jowett, Craig, Solntseva, Irina, Wu, Lingling, James, Chris, Glasauer, Susan
• Format: Journal Article
• Language: English
• Published: England IWA Publishing 01.04.2018
• Subjects: Adsorption; Chemical precipitation; Clay; Corn; Effluents; Electrochemistry; Electron microscopy; Fertilization; Fertilizers; Groundwater; Initiatives; Iron; Iron phosphates; Leaching; Mineralization; Minerals; Organic chemistry; Phosphates; Phosphorus; Phosphorus removal; Precipitates; Precipitation; Removal; Sand; Scanning electron microscopy; Sediments; Septic tanks; Sewage; Silicates; Sludge; Soil; Soil amendment; Soil investigations; Surface water; Vivianite; Water resources; X-ray diffraction; Canada; United States > US; Massachusetts

Clear sand adsorbs 15–35% total phosphorus (P) from septic tank effluent, but P is mobilized when low-P effluent is applied. Amorphous P compounds formed by alkali aluminate chemical addition may also be subject to leaching. Crystalline mineralization is the desired end effect that isolates P thorou...