Ammonia removal by magnesium ammonium phosphate precipitation in industrial wastewaters

Tünay, Olcay; Kabdaşlı, Işık; Orhon, Derin; Kolçak, Saadettin

doi:10.2166/wst.1997.0524

Cited by 75 publications

(45 citation statements)

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“…Successful struvite recovery has been reported from wastewater from the following industries: Tannery (Tunay et al, 1997), textile (Kabdasli et al, 2000, Huang et al, 2012, carmine dye (Chimenos et al, 2003), semiconductor (Kim et al, 2009), slaughterhouse and meat packing (Kabdasli et al, 2009), food processing (potato processing and molasses based) (Moerman et al, 2009;Turker and Celen, 2010), rareearth , coking (Zhang et al, 2009;Kumar et al, 2013), 7-amino cephalosporanic acid (Li et al, 2012) and yeast production (Uysal et al,2013 Hutnik et al, 2012;Folleto et al, 2013). Unlike farm waste, no pre-treatment requirements have been reported for industrial waste prior to struvite recovery.…”

Section: Industrial Wastesmentioning

confidence: 99%

Phosphorus recovery as struvite from farm, municipal and industrial waste: Feedstock suitability, methods and pre-treatments

et al. 2016

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Global population growth requires intensification of agriculture, for which a sustainable supply of phosphorus (P) is essential. Since natural P reserves are diminishing, recovering P from wastes and residues is an increasingly attractive prospect, particularly as technical and economic potential in the area is growing. In addition to providing phosphorus for agricultural use, stripping P from waste residues and effluents lessens their nutrient loading prior to disposal. This paper critically reviews published methods for P recovery from waste streams (municipal, farm and industrial) with emphasis on struvite (MgNH 4 PO 4 6H 2 O) crystallization, including pretreatments to maximize recovery. Based on compositional parameters of a range of wastes, a Feedstock Suitability Index (FSI) was developed as a guide to inform *Manuscript Click here to view linked References researchers and operators of the relative potential for struivite production from each waste.

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Section: Industrial Wastesmentioning

confidence: 99%

Phosphorus recovery as struvite from farm, municipal and industrial waste: Feedstock suitability, methods and pre-treatments

et al. 2016

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“…It is also known as a bio-mineral in urinary tracts and kidney. However, precipitation of struvite has been addressed as a recovery method of ammonia or phosphate from industrial and domestic wastewaters [Tünay et,al., 1997;Shin and Lee, 1997;Schulze-Rettmer, 1991;Snoeying and Jenkins, 1980;Loewenthal et.al., 1994]. It has attracted considerable attention because of its occurrence of different environments and its utility as a resource.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterisation of Struvite Family Crystals by An Aqueous Precipitation Method

Sutiyono

Edahwati

Perwitasari

et al. 2016

MATEC Web of Conferences

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Struvite (NH4MgPO4•6H2O) is a mineral often found as a scale deposit in an industrial process and piping. The common occurrence of struvite formation is a wide variety of environments. pH solution and environmental temperature are important parameters that control precipitation and subsequent decomposition of struvite. The study aims to characterise the struvite precipitated out the solution through chemical and mineralogical analysis. In this work, struvite solution was prepared by mixing NH4OH , MgCl2 and H3PO4 with the different purity grade (A and B) in the mol ratio of 1 : 1 : 1 in the stirred glass vessel tank with volume of 500 ml, and then stirred at 200 rpm for 70 minutes. Temperature of 30 O C and an initial pH of 10 were selected. The precipitated deposit was dried at room temperature for 48 hours of being analyzed. Material characterization of the deposits was conducted using XRPD Rietveld method of qualitative and quantitative mineralogical phase analysis. XRF was employed for bulk chemical elemental analysis of the scale obtained. The sample A using analytical grade powder provided the major phases of struvite-(K) and struvite. In constrast, the major phase of newberyite and minor phases of lepidocrocite (FeOOH) and niter (KNO3) was observed by following changes in the lowest purity of powder (Sample B). Analysis of the experimental data suggests a solution mediated transformation process as a possible mechanism of struvite transformation.

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“…Struvite is a white crystalline substance consisting of magnesium, ammonium and phosphorus in equal molar concentration. In addition, struvite is a valuable slow-release fertilizer, the production of which could offset much of the cost of chemical treatment [9] [10][11][12]. The precipitation of struvite is affected by several factors, namely the pH, the chemical composition of the wastewater (degree of saturation with respect to magnesium, ammonium and phosphate; presence of other ions, such as, calcium, ionic strength of the solution), and the temperature of the solution [13,14].…”

Section: Introductionmentioning

confidence: 99%

Chemical Precipitation of Ammonia and Phosphate from Nam Son Landfill Leachate, Hanoi

Khai¹

2012

IJEE

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Abstract:Leachate from municipal landfills of the city is often contaminated heavily, especially for parameters such as organic components, heavy metals, microorganisms. However, leachate also contains amounts of valuable nutrients (e.g. N, P, K) which can be used for agriculture as fertilizers. Precipitated of N and P in the form of struvite (MgNH 4 PO 4 .6H 2 O) might be applied as a technique for removal a huge amount of N as well as P in wastewater. This study investigated the recovery ability of N, P in leachate from Nam Son municipal landfill of Hanoi city. Different pH values, anaerobic time and stoichiometric Mg 2+ : NH 4 + : PO 4 3-was tested to determine the optimal conditions for precipitating struvite. The effect of pH on the forming of struvite was between pH 9 to 11. The results showed that nutrients in landfill leachate could be recovered with the optimum pH around 9.5 and the optimum Mg 2+ : NH 4 + : PO 4 3-molar ratio as 1.15: 1: 1. With the anaerobic interval of 21 days, COD value in landfill leachate was decreased to 60%, the retrieval reached 80.6% for nitrogen and 82.7% for phosphorus. According to estimates, with the application of struvite precipitation technique, the average annual retrieval amount of NH 4 + and PO 4 3-can reach 263 tons and 25 tons, respectively.

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Ammonia removal by magnesium ammonium phosphate precipitation in industrial wastewaters

Cited by 75 publications

References 0 publications

Phosphorus recovery as struvite from farm, municipal and industrial waste: Feedstock suitability, methods and pre-treatments

Phosphorus recovery as struvite from farm, municipal and industrial waste: Feedstock suitability, methods and pre-treatments

Synthesis and Characterisation of Struvite Family Crystals by An Aqueous Precipitation Method

Chemical Precipitation of Ammonia and Phosphate from Nam Son Landfill Leachate, Hanoi

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