Results 61 to 70 of about 1,344 (176)
Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
Environmental Science and Ecotechnology, 2020 Phosphorus and nutrient recovery from wastewater as mineral salts can support local replenishment of fertilisers and reduce mining, contributing to the circular economy.
Francisco Simoes +5 more
doaj +1 more source
Journal of Sustainable Agriculture and Environment, Volume 5, Issue 2, June 2026.ABSTRACT Phosphorus (P) availability is strongly constrained in both acidic and calcareous soils due to fixation reactions, reducing nutrient‐use efficiency and driving excessive fertiliser inputs. This study develops and evaluates a series of chitosan–apatite–citrate (CAC) fertilisers prepared using four continuous‐flow manufacturing strategies: a ...
Tu Nguyen Quang Le +6 more
wiley +1 more source
Water Environment Research, Volume 98, Issue 6, June 2026.A sequential system using magnesium‐impregnated rice husk biochar was evaluated through techno‐economic and life‐cycle assessment. The biochar first removes nitrate and phosphate from water and is then reused as a soil amendment, though high magnesium chloride costs constrain feasibility, highlighting the need for process optimization for large‐scale ...
José Lugo‐Arias +5 more
wiley +1 more source
Recovering nutrients from urine – A golden opportunity for sustainable fertiliser production
PLANTS, PEOPLE, PLANET, Volume 8, Issue 3, Page 747-753, May 2026.Agricultural industrialisation has led to levels of nutrients in the environment that are well above safe operating limits, yet fertiliser use is necessary to feed a growing population. The recovery of nutrients from human urine in large, developed cities may offset some of the ecological and economic impacts associated with fertiliser production, as ...
Hanxia Yu +9 more
wiley +1 more source
Strategies to enhance the recovery of phosphorus as struvite during the storage of urine
Results in EngineeringPhosphorus is a non-renewable resource, and it will in future become increasingly scarce. Urine can be used as a valuable resource of phosphate. One way to create favourable conditions for recovering phosphorus as struvite from urine is to store urine ...
Nicolás Hernández-Alcayaga +1 more
doaj +1 more source
Is Struvite a Prebiotic Mineral?
Life, 2013 The prebiotic relevance of mineral struvite, MgNH4PO4·6H2O, was studied experimentally as a phosphorylating reagent and, theoretically, to understand the geochemical requirements for its formation.
Matthew A. Pasek, Maheen Gull
doaj +1 more source
Water and Environment Journal, Volume 40, Issue 2, Page 290-300, May 2026.This study investigates the impact of calcium on the performance of a large‐scale internal circulation (IC) reactor treating calcium‐rich dairy wastewater. Excessive calcium concentrations (400‐600 mg L−1) resulted in calcification of the anaerobic sludge, reactor walls, and pipes, suggesting a 17% and 25% reduction in biogas and methane production ...
O. D. Yepez‐Ceron +4 more
wiley +1 more source
The Effect of Citrate and Phosphocitrate On Struvite Spontaneous Precipitation
Crystal Growth & Design, 2007 The effect of citrate and phosphocitrate ions on the spontaneous precipitation of magnesium ammonium phosphate hexahydrate (MgNH4PO4·6H2O, struvite) at pH 8.50 and 25 °C was investigated at conditions of constant solution supersaturation. The supersaturated solutions were prepared in synthetic wastewater.
Aikaterini N. Kofina +2 more
openaire +1 more source
Soil Use and Management, Volume 42, Issue 2, April‐June 2026.ABSTRACT Increasing phosphorus (P) fertilizer use efficiency from bio‐based waste products (i.e., recycled amendments) requires promoting a larger proportion of bioavailable P in soil for plant uptake. Therefore, this study aimed to elucidate how recycled amendment P solubility and movement vary when interfaced with soils of contrasting characteristics.
Aimée Schryer +6 more
wiley +1 more source
Chemical Engineering Transactions, 2019 Recovering struvite crystal is one of the most interesting methods for removing phosphorus from wastewater to produce fertilizer. Phosphorus is removed from wastewater streams to prevent the ecologically harmful effects of eutrophication in receiving ...
Ngo Van Thanh Huy +3 more
doaj +1 more source