Recovering phosphorus as struvite from the digested swine wastewater with bittern as a magnesium source
نویسندگان
چکیده
منابع مشابه
Removal and recovery of phosphorus as struvite from swine wastewater using microbial fuel cell.
Air-cathode single chamber microbial fuel cells (MFCs) were operated with swine wastewater. The maximum power density, the maximum current density, the average value of COD-removal efficiency, and the coulombic efficiency were 1-2.3 W/m(2), 6.0-7.0 A/m(2), 76-91%, and 37-47%, respectively. During operation, 70-82% of the phosphorus was removed from the influent, and some precipitations were obs...
متن کاملPhosphorus Recovery from Wastewater by Struvite Crystallisation: a Review
The present review provides an understanding of principles of struvite crystallisation and examines the techniques and processes experimented to date by researchers at laboratory, pilot and full scale to maximise phosphorus removal and reuse as struvite from wastewater effluents. Struvite is mainly known as a scale deposit causing concerns to wastewater companies. Indeed struvite naturally occu...
متن کاملPretreated magnesite as a source of low-cost magnesium for producing struvite from urine in Nepal.
Struvite is a solid phosphorus fertilizer that can be recovered easily from source-separated urine by dosing it with a soluble form of magnesium. The process is simple and low-cost, however, previous studies have shown that the cost of magnesium in low-income countries is crucial to the viability and implementation of struvite precipitation. Literature has proposed producing inexpensive magnesi...
متن کاملWood ash as a magnesium source for phosphorus recovery from source-separated urine.
Struvite precipitation is a simple technology for phosphorus recovery from source-separated urine. However, production costs can be high if expensive magnesium salts are used as precipitants. Therefore, waste products can be interesting alternatives to industrially-produced magnesium salts. We investigated the technical and financial feasibility of wood ash as a magnesium source in India. In ba...
متن کاملA novel approach describing struvite crystal aggregation and granulation in the fluidized bed for phosphorus recovery from swine wastewater
Fluidized bed is commonly used for struvite (MgNH4PO4·6H2O) recovery from wastewater. However, effective methods are lacking to describe the properties of the millimeter-scale struvite pellets in the fluidized bed, with the consequence of not predicting and optimizing the granulation process effectively. In this work, swine wastewater was used as the medium for struvite recovery by using fluidi...
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ژورنال
عنوان ژورنال: Water Science and Technology
سال: 2011
ISSN: 0273-1223,1996-9732
DOI: 10.2166/wst.2011.720