Results 61 to 70 of about 1,243 (179)
Recovering nutrients from urine – A golden opportunity for sustainable fertiliser production
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
This study evaluates the feasibility of nitrogen recovery from wastewater via electrochemical methods as an alternative nutrient source for agricultural applications.
Rúbia Mores +9 more
doaj +1 more source
Removal and recovery of N, P and K from urine via ammonia stripping and precipitations of struvite and struvite-K [PDF]
This study investigated the recovery of N, P and K from source-separated urine in laboratory-scale combined processes of air stripping and precipitation. Two operation scenarios were carried out to recover N/P (named partial scenario) and N/P/K (named complete scenario).
Kangning, Xu +4 more
openaire +2 more sources
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
Urine a source for struvite: nutrient recovery – A review
Department of Civil Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711 103, West Bengal, India E-mail: guptaanirban@hotmail.com Manuscript received online 01 February 2019, accepted 14 March 2019 Urine is not a waste but can be a raw source for struvite (MgNH4 PO4 .6H2O) which can be used as a substitute of ...
Azhan Ahmad, Anirban Gupta
openaire +2 more sources
In a short‐term pot experiment, three legume‐based crop rotations are being tested for their effects on the P cycle and P use efficiency compared to maize monoculture. Legume‐based crop rotations stimulate the P cycle by increasing acid phosphatase activity and carboxylate exudation.
Michelle Natalie Herrmann +6 more
wiley +1 more source
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
Rice response as affected by various fertilizer‐P sources under contrasting irrigation methods
Abstract Alternative fertilizer‐phosphorus (P) sources created by recycling excess nutrients from waste sources, such as struvite (MgNH4PO4·6H2O), require further research to determine their niche in agriculture and potential environmental implications.
Chandler M. Arel +3 more
wiley +1 more source
Efficient recovery of phosphorus from phosphogypsum leachate based on struvite precipitation
Phosphogypsum leachate is a liquid produced during phosphogypsum stacking. It has the characteristics of high phosphorus content, low pH, high corrosivity, and high concentrations of heavy metals.
MA Jingfeng +5 more
doaj +1 more source
Abstract Ensuring food security goals through the provision of sustainable energy and food without compromising environmental sustainability is the current requirement amid threats from climate change, uncontrolled global population, and scarcity of natural resources.
Muhammad Shahbaz Farooq +9 more
wiley +1 more source

