Recovery of struvite from animal wastewater and its nutrient leaching loss in soil

Rahman, M. M.; Liu, YingHao; Kwag, Jung-Hoon; Ra, Chang‐Six

doi:10.1016/j.jhazmat.2010.12.103

Cited by 178 publications

(105 citation statements)

References 33 publications

(33 reference statements)

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“…The addition of chemical reactants to a wastewater to produce struvite would be needed to provide an equimolecular condition of the reactants. Figure 1c provides Solution pH plays an important role for the removal of nutrient such as nitrogen and phosphorus from solution [17,18] by struvite precipitation. The results in figure 1 show that solution pH affects the ammonium removal or struvite production.…”

Section: Effect Of Molar Ratio and Solution Phmentioning

confidence: 99%

Ammonium Nitrogen Removal from Urea Fertilizer Plant Wastewater via Struvite Crystal Production

Machdar

Depari

Ulfa

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Elimination of ammonium concentration from urea fertilizer plant wastewater through struvite crystal (NH 4 MgPO 4 .6H 2 O) formation by adding MgCl 2 , KH 2 PO 4 , and KOH were studied. This method of elimination has two benefits, namely, reducing ammonium nitrogen content in the wastewater, as well as production of a valuable material (struvite crystal). Struvite is known as a slow-release fertilizer and less soluble. This report presents the ammonium removal efficiencies during struvite formation. The growth of struvite production under different molar ratios of Mg 3-of 1.2:1:1, 1:1:1.2, and 1:1:1 were evaluated. Each of the molar ratios was treated at the solution pH of 8, 9, and 10. It was found that, the highest ammonium removal efficiency was 94.7% at the molar ratio of 1.2:1:1 and pH of 9. Primarily, the growth rate of struvite formation complied with a first-order kinetic model. The rate constants (k 1 ) were calculated to be 2.6, 4.3, and 5.0 h -1 for solution pH of 8, 9, and 10, respectively. The findings of the study provide suggestion for an alternative sustainable recovery of ammonium nitrogen content in a urea fertilizer plant effluent.

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Section: Effect Of Molar Ratio and Solution Phmentioning

confidence: 99%

Ammonium Nitrogen Removal from Urea Fertilizer Plant Wastewater via Struvite Crystal Production

Machdar

Depari

Ulfa

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The smaller particle sizes released more N than the bigger particles. It is possible to remove 40 % N (Rahman et al 2014) and 93 % P (Rahman et al 2011) through MAP crystallization from wastewaters. Furthermore, its selling price can counteract the costs of sodium phosphate and sodium hydrate consumed during the processes of ICME technology and MAP crystallization.…”

Section: Economic Evaluationmentioning

confidence: 99%

Sustainable Treatment of Antibiotic Wastewater Using Combined Process of Microelectrolysis and Struvite Crystallization

Zhang

Chen

Wang

2015

Water Air Soil Pollut

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The aim of this study was to investigate the synergistic effects of the process of iron-carbon microelectrolysis (ICME) followed by struvite (MAP) crystallization on treating antibiotic wastewater. Characteristics of ICME effluent depended mainly on the iron to carbon mass ratio (Fe/C). The optimum reaction conditions of Fe/C ratio of 2:1 and reaction time of 90 min were observed. The ICME effluent was further treated by MAP crystallization using Na 2 HPO 4 ·12H 2 O and MgCl 2 ·6H 2 O as precipitation agents. The results showed that, the Mg 2+ /NH 4 + -N/ PO 4 3− -P molar ratio of 1:1:1 and pH 8.5, were suitable for the crystallization process, which could obtain highquality MAP containing 5.18 % N,10.23 % Mg, and 13.83 % P. Optimal total removal rate of COD and NH 4 + -N removal rate achieved 84.6 and 89.9 %, respectively. The economic evaluation of NH 4 + -N recovery by the synergistic process was also conducted, indicating that the synergistic process had the potential to benefit COD emission reduction and nitrogen recovery.

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“…The method has been developed for wastewater treatment, where P removal can easily reach more than 70% (le Corre et al, 2009) and is commercially available for treatment plants, although not widely applied as yet. For manures, the stuvite technique is particularly relevant for anaerobically digested slurries and the liquid fraction from digestate separation; hence, it has been the subject of massive research in the past decade and quite high P removal efficiencies have been achieved (56-93%; Zeng and Li 2006;Suzuki et al, 2007;Liu et al, 2011;Rahman et al, 2011;Song et al, 2011). However, further development is needed for application to liquid manures and only a few commercial-scale plants are in operation worldwide.…”

Section: Struvitementioning

confidence: 99%

Animal Manure Residue Upgrading and Nutrient Recovery in Biofertilisers

Jensen

2013

Animal Manure Recycling

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Recovery of struvite from animal wastewater and its nutrient leaching loss in soil

Cited by 178 publications

References 33 publications

Ammonium Nitrogen Removal from Urea Fertilizer Plant Wastewater via Struvite Crystal Production

Ammonium Nitrogen Removal from Urea Fertilizer Plant Wastewater via Struvite Crystal Production

Sustainable Treatment of Antibiotic Wastewater Using Combined Process of Microelectrolysis and Struvite Crystallization

Animal Manure Residue Upgrading and Nutrient Recovery in Biofertilisers

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