Struvite (MgNH 4 PO 4 ?6H 2 O) can be produced from municipal wastewater and has been shown to be an alternative fertilizer-phosphorus (P) source for various crops, but little is known about the runoff-water-quality implications from soil-applied struvite. The objective of this study was to evaluate the effects of soil [Creldon (Oxyaquic Fragiudalfs), Dapue (Fluventic Hapludolls), Roxana (Typic Udifluvents), and Calloway (Aquic Fraglossudalfs) series], fertilizer-P source [synthetically produced electrochemically precipitated struvite (ECSTsyn), real-wastewater-derived ECST (ECSTreal), chemically precipitated struvite (CPST), and monoammonium phosphate (MAP)], and water source (rainwater, groundwater, and struvite-removed real wastewater) over time on runoff-water-quality parameters from laboratory-conducted, rainfall-runoff simulations. Mesh tea bags containing each soil-fertilizer treatment combination were rained on with each water source (Trial 1), incubated for 6 months, and rained on again (Trial 2) to evaluate runoff-water quality. Struvite fertilizers had similar runoff-water-quality properties to those from MAP. In Trial 1, runoff total P (TP) concentration differences ( i.e. , soil-fertilizer-water-type response minus control response minus blank response) from ECSTsyn or ECSTreal were 1 to 5 times larger than MAP and CPST for all water-soil-fertilizer-P source treatment combinations, except for the Creldon-groundwater and Roxana-wastewater combinations. In both trials, runoff TP decreased over time in all water-soil and soil-fertilizer-P source treatment combinations, except for the Roxana-CPST combination where TP increased over time by 46%. The similar water-quality responses from the struvite fertilizers among the various soils and water types compared to MAP suggest that struvite has similar runoff-water-quality implications as at least one widely used, commercially available fertilizer-P source.
Ashley, K., Cordell, D. and Mavinic, D. (2011) A Brief History of Phosphorus: From the Philosopher’s Stone to Nutrient Recovery and Reuse. Chemosphere, 84, 737-746. https://doi.org/10.1016/j.chemosphere.2011.03.001
Smil, V. (2000) Phosphorus in the Environment: Natural Flows and Human Interferences. Annual Review of Energy and the Environment, 25, 53-88. https://doi.org/10.1146/annurev.energy.25.1.53
Cordell, D., Drangert, J. and White, S. (2009) The Story of Phosphorus: Global Food Security and Food for Thought. Global Environmental Change, 19, 292-305. https://doi.org/10.1016/j.gloenvcha.2008.10.009
Stevenson, F.J. and Cole, M.A. (1999) Cycles of Soil: Carbon, Nitrogen, Phosphorus, Sulfur, Micronutrients. John Wiley & Sons, Inc., New York.
Steen, I. (1998) Phosphorus Availability in the 21st Century: Management of a Non-Renewable Resource. Phosphorus & Potassium, 217, 1-13.
United States Geological Survey (USGS) (2021) Mineral Commodity Summaries. USGS, Reston, VA. https://pubs.er.usgs.gov/publication/mcs2021
International Fertilizer Association (IFA) (2021) Public Summary: Medium-Term Fertilizer Outlook 2021-2025. https://www.ifastat.org/market-outlooks
Cordell, D. and White, S. (2013) Sustainable Phosphorus Measures: Strategies and Technologies for Achieving Phosphorus Security. Agronomy, 3, 86-116. https://doi.org/10.3390/agronomy3010086
Liu, Y., Kumar, S., Kwag, J. and Ra, C.S. (2012) Magnesium Ammonium Phosphate Formation, Recovery and Its Application as Valuable Resources: A Review. Journal of Chemical Technology & Biotechnology, 88, 181-189. https://doi.org/10.1002/jctb.3936
Talboys, P.J., Heppell, J., Roose, T., Healey, J.R., Jones, D.L. and Withers, P.J.A. (2016) Struvite: A Slow-Release Fertiliser for Sustainable Phosphorus Management? Plant and Soil, 401, 109-123. https://doi.org/10.1007/s11104-015-2747-3
Degryse, F., Baird, R., Silva, R.C. and McLaughlin, M.J. (2017) Dissolution Rate and Agronomic Effectiveness of Struvite Fertilizers—Effect of Soil pH, Granulation and Base Excess. Plant and Soil, 410, 139-152. https://doi.org/10.1007/s11104-016-2990-2
Bonvin, C., Etter, B., Udert, K.M., Frossard, E., Nanzer, S., Tamburini, F. and Oberson, A. (2015) Plant Uptake of Phosphorus and Nitrogen Recycled from Synthetic Source-Separated Urine. AMBIO, 44, 217-227. https://doi.org/10.1007/s13280-014-0616-6
Anderson, R. (2020) Struvite Behavior and Effects as a Fertilizer-Phosphorus Source among Arkansas Soils. Master’s Thesis. University of Arkansas, Fayetteville. https://scholarworks.uark.edu/etd/3636
Omidire, N.S. and Brye, K.R. (2022) Wastewater-Recycled Struvite as a Phosphorus Source in a Wheat-Soybean Double-Crop Production System in Eastern Arkansas. Agrosystems, Geosciences & Environment, 5, e20271. https://doi.org/10.1002/agg2.20271
Ylagan, S., Brye, K.R. and Greenlee, L. (2020) Corn and Soybean Response to Wastewater-Recovered and Other Common Phosphorus Fertilizers. Agrosystems Geoscience & Environment, 3, e20086. https://doi.org/10.1002/agg2.20086
Siciliano, A., Limonti, C., Curcio, G.M. and Molinari, R. (2020) Advances in Struvite Precipitation Technologies for Nutrients Removal and Recovery from Aqueous Waste and Wastewater. Sustainability, 12, Article 7538. https://doi.org/10.3390/su12187538
Ostara Nutrient Technologies, Inc. (2021) Crystal Green. https://www.ostara.com/products/crystal-green/
Kékedy-Nagy, L., Abolhassani, M., Sultana, R., Anari, Z., Brye, K.R., Pollet, B.G. and Greenlee, L.F. (2021) The Effect of Anode Degradation on Energy Demand and Production Efficiency of Electrochemically Precipitated Struvite. Journal of Applied Electrochemistry, 52, 205-215. https://doi.org/10.1007/s10800-021-01637-y
Kékedy-Nagy, L., Teymouri, A., Herring, A.M. and Greenlee, L.F. (2020) Electrochemical Removal and Recovery of Phosphorus as Struvite in an Acidic Environment Using Pure Magnesium vs. the AZ31 Magnesium Alloy as the Anode. Chemical Engineering Journal, 380, Article 122480. https://doi.org/10.1016/j.cej.2019.122480
Doyle, J.D. and Parsons, S.A. (2002) Struvite Formation, Control and Recovery. Water Research, 36, 3925-3940. https://doi.org/10.1016/S0043-1354(02)00126-4
Hao, X.D., Wang, C.C., Lan, L. and Loosdrecht, M.C.M. (2008) Struvite Formation, Analytical Methods and Effects of pH and Ca2+. Water Science & Technology, 58, 1687-1692. https://doi.org/10.2166/wst.2008.557
Moussa, S.B., Maurin, G., Gabrielli, C. and Amor, M.B. (2006) Electrochemical Precipitation of Struvite. Electrochemical and Solid-State Letters, 9, 97-101. https://doi.org/10.1149/1.2189222
Massey, M.S., Davis, J.G., Ippolito, J.A. and Sheffield, R.E. (2009) Effectiveness of Recovered Magnesium Phosphates as Fertilizers in Neutral and Slightly Alkaline Soils. Agronomy Journal, 101, 323-329. https://doi.org/10.2134/agronj2008.0144
Ackerman, J.N., Zvomuya, F., Cicek, N. and Flaten, D. (2013) Evaluation of Manure-Derived Struvite as a Phosphorus Source for Canola. Canadian Journal of Plant Science, 93, 419-424. https://doi.org/10.4141/cjps2012-207
Anderson, R., Brye, K.R., Kekedy-Nagy, L., Greenlee, L., Gbur, E. and Roberts, T.L. (2021a) Electrochemically Precipitated Struvite Effects on Extractable Nutrients Compared with Other Fertilizer-Phosphorus Sources. Agrosystems, Geosciences & Environment, 4, e20183. https://doi.org/10.1002/agg2.20183
Anderson, R., Brye, K.R., Kekedy-Nagy, L., Greenlee, L., Gbur, E. and Roberts, T.L. (2021b) Total Extractable Phosphorus in Flooded Soil as Affected by Struvite and Other Fertilizer-Phosphorus Sources. Soil Science Society of America Journal, 85, 1157-1173. https://doi.org/10.1002/saj2.20237
Anderson, R., Brye, K.R., Greenlee, L., Roberts, T.L. and Gbur, E. (2021c) wastewater-Recovered Struvite Effects on Total Extractable Phosphorus Compared with Other Phosphorus Sources. Agrosystems, Geosciences & Environment, 4, e20154. https://doi.org/10.1002/agg2.20154
Nongqwenga, N., Muchaonyerwa, P., Hughes, J., Odindo, A. and Bame, I. (2017) Possible Use of Struvite as an Alternative Phosphate Fertilizer. Journal of Soil Science and Plant Nutrition, 17, 581-593. https://doi.org/10.4067/S0718-95162017000300003
Shigaki, F., Sharpley, A. and Prochnow, L.I. (2007) Rainfall Intensity and Phosphorus Source Effects on Phosphorus Transport in Surface Runoff from Soil Trays. Science of the Total Environment, 373, 334-343. https://doi.org/10.1016/j.scitotenv.2006.10.048
Smith, D.R., Owens, P.R., Leytem, A.B. and Warnemuende, E.A. (2007) Nutrient Losses from Manure and Fertilizer Application as Impacted by Time to First Runoff Event. Environmental Pollution, 147, 131-137. https://doi.org/10.1016/j.envpol.2006.08.021
National Cooperative Soil Survey (NCSS). (2001) Roxana Series. https://soilseries.sc.egov.usda.gov/OSD_Docs/R/ROXANA.html
Anderson, R., Brye, K.R., Greenlee, L. and Gbur, E. (2020) Chemically Precipitated Struvite Dissolution Dynamics over Time in Various Soil Textures. Agricultural Sciences, 11, 567-591. https://doi.org/10.4236/as.2020.116036
National Cooperative Soil Survey (NCSS). (2021) Calloway Series. https://soilseries.sc.egov.usda.gov/OSD_Docs/C/CALLOWAY.html
National Cooperative Soil Survey (NCSS). (2006) Creldon Series. https://soilseries.sc.egov.usda.gov/OSD_Docs/C/CRELDON.html
National Cooperative Soil Survey (NCSS). (1997) Dapue Series. https://soilseries.sc.egov.usda.gov/OSD_Docs/D/DAPUE.html
Zhang, H. and Wang, J.J. (2014) Measurement of Soil Salinity and Sodicity. In Sikora, F.J. and Moore, K.P., Eds., Soil Test Methods from the Southeastern United States. Southern Cooperative Series Bulletin 419, University of Georgia, 155-157.
Gee, G.W. and Or, D. (2002) Particle Size Analysis. In Dane, J.H. and Topp, G.C., Eds., Methods of Soil Analysis. Part 4. Physical Methods. Soil Science Society of America, Inc., Madison, 255-293. https://doi.org/10.2136/sssabookser5.4.c12
Zhang, H., Hardy, D.H., Mylavarapu, R. and Wang, J. (2014) Mehlich-3. In Sikora, F.J. and Moore, K.P., Eds., Soil Test Methods from the Southeastern United States. Southern Cooperative Series Bulletin 419, University of Georgia, 101-110.
Tucker, M.R. (1992) Determination of Phosphorus by Mehlich 3 Extraction. In Donohue, S.J., Ed., Soil and Media Diagnostic Procedures for the Southern Region of the United States. Virginia Agricultural Experiment Station Series Bulletin 374, Blacksburg, 6-8.
United States Environmental Protection Agency (USEPA). (1996) Method 3050B: Acid Digestion of Sludges, Sediments, and Soils, Revision 2. Washington, DC. https://www.epa.gov/sites/production/files/2015-06/documents/epa-3050b.pdf
Slaton, N., Roberts, T. and Ross, J. (2013) Arkansas Soybean Production Handbook: Fertilization and Liming Practices. University of Arkansas, Division of Agriculture, Little Rock, AR.
United States Environmental Protection Agency (USEPA). (1993a) Method 351.2, Revision 2: Determination of Total Kjeldahl Nitrogen by Semi-Automated Colorimetry. Cincinnati, OH. https://www.epa.gov/sites/default/files/2015-08/documents/method_351-2_1993.pdf
United States Environmental Protection Agency (USEPA). (1993b) Method 353.2, Revision 2: Determination of Nitrate-Nitrite Nitrogen by Automated Colorimetry. Cincinnati, OH. https://www.epa.gov/sites/default/files/2015-08/documents/method_353-2_1993.pdf
United States Environmental Protection Agency (USEPA). (1993c) Method 365.1, Revision 2: Determination of Phosphorus by Semi-Automated Colorimetry. Cincinnati, OH. https://www.epa.gov/sites/default/files/2015-08/documents/method_365-1_1993.pdf
Bohn, H.L., McNeal, B.L. and O’Connor, G.A. (2001) Soil Chemistry. 3rd Edition, John Wiley & Sons, Inc., New York, 307p.
Bolan, N.S., Hedley, M.J. and White, R.E. (1991) Processes of Soil Acidification during Nitrogen Cycling with Emphasis on Legume-Based Pastures. Plant and Soil, 134, 53-63. https://doi.org/10.1007/BF00010717
Brye, K.R., Omidire, N.S., English, L., Parajuli, R., Kekedy-Nagy, L., Sultana, R., Popp, J., Thoma, G., Roberts, T.L. and Greenlee, L.F. (2022) Assessment of Struvite as an Alternative Source of Fertilizer-Phosphorus for Flood-Irrigated Rice. Sustainability, 14, Article 9621. https://doi.org/10.3390/su14159621
Omidire, N.S., Brye, K.R., English, L., Popp, J., Kekedy-Nagy, L., Greenlee, L., Roberts, T.L. and Gbur, E.E. (2022) Wastewater-Recovered Struvite Evaluation as a Fertilizer-Phosphorus Source for Corn in Eastern Arkansas. Agronomy Journal, 114, 2994-3012. https://doi.org/10.1002/agj2.21162
Della Lunga, D., Brye, K.R., Roberts, T.L., Henry, C., Evans-White, M. and Lessner, D. (2023) Struvite Effects on Rice Growth and Productivity under Flood-Irrigation in the Greenhouse. Agricultural Sciences, 14, 864-877. https://doi.org/10.4236/as.2023.147058