Results 31 to 40 of about 521,823 (197)

XRD-Rietveld analysis as a tool for monitoring struvite analog precipitation from wastewater: P, Mg, N and K recovery for fertilizer production

Journal of Materials Research and Technology, 2020
The objective of this study was to select between four proposed synthesis conditions, which one would be the most propitious for struvite precipitation from wastewater and, on such product, detail its crystallochemical aspects using the Rietveld ...
Rose Caldas de Souza Meira, Simone Patrícia Aranha da Paz, José Augusto Martins Corrêa   +2 more
doaj   +1 more source

Precipitation of struvite using MgSO4 solution prepared from sidestream dolomite or fly ash

Heliyon, 2022
Struvite (NH4MgPO4∗6H2O) is a slow-release fertilizer produced from phosphorus and nitrogen-containing wastewater in the presence of Mg salts. Commercial Mg salts are the single most significant cost of struvite precipitation. In this study, H2SO4 formed
Janne Pesonen, Fien Janssens, Tao Hu, Ulla Lassi, Sari Tuomikoski   +4 more
doaj   +1 more source

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, Parsons, Simon A., Valsami-Jones, E., Le Corre, Kristell S., Le Corre, K. S., Hobbs, P. J., Le Corre, K., Valsami-Jones, Eugenia, Parsons, S. A.   +8 more
core   +1 more source

Phosphorus recovery from wastewater by struvite crystallization: A review [PDF]

, 2009
The present review provides an understanding of principles of struvite crystallization and examines the techniques and processes experimented to date by researchers at laboratory, pilot, and full-scale to maximize phosphorus removal and reuse as struvite
Hobbs, Phil, Le Corre, K. S., Hobbs, P. J., Valsami-Jones, Eugenia, Le Corre, KS, Hobbs, P, Valsami-Jones, Eugenia; id_orcid, Valsami-Jones, E., Parsons, Simon A., Hobbs, P., Le Corre, Kristell S., Parsons, SA, Parsons, S. A., P. Hobbs, E. Valsami-Jones, K. S. Le Corre, S. A. Parsons   +16 more
core   +1 more source

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, Freche, Michèle, Montastruc, Ludovic, Ludovic Montastruc, Azzaro-Pantel, Catherine, Béatrice Biscans, Luc Pibouleau, Biscans, Béatrice, Pibouleau, Luc, Catherine Azzaro-Pantel, Michèle Frèche, Mary Hanhoun   +11 more
core   +1 more source

Optimization of struvite precipitation in synthetic biologically treated swine wastewater - Determination of the optimal process parameters [PDF]

, 2013
A sustainable way to recover phosphorus (P) in swine wastewater involves a preliminary step of P dissolution followed by the separation of particulate organic matter.
Daumer, Marie-Line, Sýkorová, Eva, Biscans, Béatrice, Béline, Fabrice, Capdevielle, Aurélie   +4 more
core   +1 more source

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, Mohammed Saedi Jami, Mohd Rushdi Abu Bakar, Vijaya Subramaniam, Soh Kheang Loh   +4 more
doaj   +1 more source

Microbial Phosphorus Removal and Recovery by Struvite Biomineralisation in Comparison to Chemical Struvite Precipitation in Municipal Wastewater

Journal of Environmental Chemical Engineering, 2022
Microbial mineralisation is attracting significant interest as an innovative process to recover nutrients from waste streams. Nevertheless, little is understood about the requirements to form struvite using biological pathways in wastewater and how does this compare with traditional chemical processes.
Yirong Leng, Ana Soares
openaire   +3 more sources

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, Jefferson, Bruce, Parsons, Simon A., Valsami-Jones, E., Le Corre, Kristell S., Le Corre, K. S., Hobbs, P., Hobbs, P. J., Valsami-Jones, Eugenia, Parsons, S. A., Jefferson, B.   +10 more
core   +1 more source

Treatment of Liquid Fraction of Digestate by Integrated Process Struvite Precipitation—Forward Osmosis

Energies, 2022
The research undertaken in this paper was aimed at determining the effect of struvite precipitation, one of the potential products that can be obtained during digestate management, on the performance of the non-pressurized membrane process—forward ...
Agnieszka Urbanowska, Izabela Polowczyk, Małgorzata Kabsch-Korbutowicz   +2 more
doaj   +1 more source