Optimizing Struvite Crystallization at High Stirring Rates
Crystals, 2023 Phosphorus and ammonium can both be recovered in the presence of magnesium through struvite (MgNH4PO4·6H2O) crystallization. The present work aimed to optimize struvite crystallization at turbulent solution flow.
Atef Korchef, Salwa Abouda, Imen Souid
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Peristomal struvite incrustations [PDF]
BMJ Case Reports, 2014 A 42-year-old woman who had a urostomy formed at the age of 6 years for a neurogenic bladder due to a myelomeningocele presented to our department with painful white deposits of hard consistency on peristomal skin, suggestive of struvite incrustations after some weeks of evolution (figure 1). Figure 1 White …
Resende, C +3 more
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Impact of calcium on struvite crystal size, shape and purity. [PDF]
, 2004 Struvite precipitation occurs spontaneously in wastewater treatment plants under conditions that are influenced by many factors including concentration of , and ions, pH, temperature and mixing energy.
Hobbs, Phil +8 more
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Precipitation Diagrams of Struvite and Dissolution Kinetics of Different Struvite Morphologies [PDF]
Croatica Chemica Acta, 2002 Spontaneous precipitation in the systems MgCl2-H3P04-NH40H-NaCl (0.15 mol dm-3)-H20, MgS04-NH4H2P04-H20 and MgS04-NH4H2P04-NaCl (0.15 mol dm-3)-H20 was studied at 25 and 37 °C and initial pH = 4. Precipitates aged for 24 hours and 30 days were characterized by means of Chemical analyses, X-ray diffractometry, FT-IR spectroscopy and thermogravimetry ...
Babić Ivančić, Vesna +3 more
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Struvite crystallisation and recovery using a stainless steel structure as a seed material. [PDF]
, 2007 A metallic system acting as a seed substrate has been designed and developed in order to assess its efficiency in recovering phosphorus as struvite. The device, consisting of two concentric stainless steel meshes, was immerged in the upper section of ...
Hobbs, Phil +10 more
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Evidence for liquid-liquid phase separation during the early stages of Mg-struvite formation [PDF]
, 2023 The precipitation of struvite, a magnesium ammonium phosphate hexahydrate (MgNH4PO4⋅6H2O) mineral, from wastewater is a promising method for recovering phosphorous.
Stephanos, Karafiludis +8 more
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Potensiometric of Struvite (MgNH4PO4.6H2O) Formation System from Biogas Waste in Electrolysis Cells [PDF]
E3S Web of Conferences, 2021 Struvite is a yellowish white or brownish yellow crystal. Struvite occurs in an alkaline environment. The reaction that occurs is the reduction of H+ and at the anode is H2O oxidation.
Soraya Santi Sintha +3 more
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Kinetics of Struvite Precipitation: Effect of the Magnesium Dose on Induction Times and Precipitation Rates [PDF]
, 2007 The presence of white deposits in specific areas of wastewater treatment plants is generally the consequence of the spontaneous formation of a mineral called struvite.
Hobbs, Phil +3 more
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Investigation of struvite crystals formed in palm oil mill effluent anaerobic digester
Heliyon, 2021 The formation of struvite crystals or magnesium ammonium phosphate (MgNH4PO4) in palm oil mill effluent (POME) occurs as early as in the secondary stage of POME treatment system.
Muzzammil Ngatiman +4 more
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Temperature impact assessment on struvite solubility product: a thermodynamic modeling approach [PDF]
, 2011 This work addresses the problem of phosphorus recovery from wastewater by struvite precipitation, which is chemically known as magnesium ammonium phosphate hexahydrate MgNH4PO4·6H2O.
Hanhoun, Mary +11 more
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