Nutrients removal and recovery from anaerobically digested swine wastewater by struvite crystallization without chemical additions

Song, Yonghui; Qiu, Guanglei; Yuan, Peng; Cui, Xiaoyu; Peng, Jianfeng; Zeng, Ping; Duan, Liang; Liu, Xiang; Qian, Feng

doi:10.1016/j.jhazmat.2011.03.015

Cited by 146 publications

(58 citation statements)

References 41 publications

(80 reference statements)

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“…However, high concentration of carbonate in animal manure wastewater will inhibit struvite crystallization and consume excess alkali and magnesium. In order to solve the problem, CO 2 degasification process has been employed for decrease carbonate concentration and increase pH value for treatment of animal manure wastewater recently [7]. Korchef et al [8] demonstrated CO 2 degasification technique could gentler increase pH for saving alkali and prevent other magnesium precipitates formation.…”

Section: Introductionmentioning

confidence: 99%

Phosphate recovery from animal manure wastewater by struvite crystallization and CO₂ degasification reactor

Zhang

Fang

et al. 2014

Ecological Chemistry and Engineering S

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Abstract:The problem of phosphorus discharge is related to environmental protection and food security. Struvite crystallization is a useful technology for phosphate recovery from wastewater. In the research, struvite crystallization process with CO2 degasification continuous U-shape reactor (CUSR) was application for phosphate recovery from animal manure wastewater. The result indicated PO4 3--P recovery ratio could achieve 47-53% without magnesium addition when CUSR hydraulic retention time controlled at 60 min. With extra magnesium addition, PO4 3--P recovery ratio could significant achieve 80-86% at magnesium addition amount 57.5 mg/dm 3 . PHREEQC modeling predictions trend of struvite crystallization was close to CUSR experimental results. The modeling calculation can provide a theoretical guide for operational parameters design. For seeding technology, high phosphate recovery efficiency was obtained and preformed struvite was the most effective seeding material. Surface characterization analysis demonstrated the dominant composition of chemical solids was struvite. Water extraction analysis indicated chemical solids recovery from animal manure wastewater could release PO4 3--P slowly and be available as slow-release fertilizer.

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Section: Introductionmentioning

confidence: 99%

Phosphate recovery from animal manure wastewater by struvite crystallization and CO₂ degasification reactor

Zhang

Fang

et al. 2014

Ecological Chemistry and Engineering S

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“…Struvite precipitation has been found to remove 70-85% of P. 56-95% of NH/ and <10% of K (Zeng and Li. 2006: Song et al. 2011: Yilmazel and Demirer.…”

Section: Slurry and Liquid Manure Systemsmentioning

confidence: 99%

“…However. a large amount of NH 4 -N can be lost via volatilization (Song et al .. 2011). The use of hydrated limes to remove P from waste waters has been shown to remove >90% of P (Vanotti et al.…”

Section: Slurry and Liquid Manure Systemsmentioning

confidence: 99%

Sustainable manure management.

Leytem¹,

Dungan²,

Kleinman³

2013

Sustainable Animal Agriculture

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“…In the recent years, the method of chemical precipitation for treating nitrogen and phosphoruscontaining wastewater has been most widely used [5][6][7][8][9][10][11]. The product of precipitation is magnesium ammonium orthophosphate hexahydrate MgNH 4 PO 4 ·6H 2 O (struvite) [12].…”

Section: Introductionmentioning

confidence: 99%

Treatment of high-strength wastewater from ammonium and phosphate ions with the obtaining of struvite

Tulaydan¹,

Malovanyy²,

Кочубей³

et al. 2017

ChChT

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Abstract.1 This work reviews the main methods of nitrogen and phosphorus removal from wastewater. The method of simultaneous removal of highly concentrated nitrogen and phosphorus was analyzed by physical and chemical precipitation, forming struvite, a by-product of magnesium ammonium orthophosphate hexahydrate. Laboratory investigations were conducted on the test solutions with the concentrations of ammonium nitrogen, phosphates, ions of magnesium and calcium corresponding to the ones of relevant elements in wastewater of swine complexes located in Lviv region, Ukraine. The analyses were done at various molar ratios of magnesium and phosphate ions and at various pH values. The comparative thermal analysis of chemical precipitation products and pure struvite was performed. The optimal conditions were identified to experience the maximum efficiency of simultaneous removal of ammonium nitrogen and phosphate ions from wastewater, forming MgNH 4 PO 4 ·6H 2 O. Recommendations on the use of the obtained product as a fertilizer were elaborated.

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Nutrients removal and recovery from anaerobically digested swine wastewater by struvite crystallization without chemical additions

Cited by 146 publications

References 41 publications

Phosphate recovery from animal manure wastewater by struvite crystallization and CO₂ degasification reactor

Phosphate recovery from animal manure wastewater by struvite crystallization and CO₂ degasification reactor

Sustainable manure management.

Treatment of high-strength wastewater from ammonium and phosphate ions with the obtaining of struvite

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Nutrients removal and recovery from anaerobically digested swine wastewater by struvite crystallization without chemical additions

Cited by 146 publications

References 41 publications

Phosphate recovery from animal manure wastewater by struvite crystallization and CO2 degasification reactor

Phosphate recovery from animal manure wastewater by struvite crystallization and CO2 degasification reactor

Sustainable manure management.

Treatment of high-strength wastewater from ammonium and phosphate ions with the obtaining of struvite

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Product

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Phosphate recovery from animal manure wastewater by struvite crystallization and CO₂ degasification reactor

Phosphate recovery from animal manure wastewater by struvite crystallization and CO₂ degasification reactor