Article
Agronomy
Tolulope Ayeyemi, Ramiro Recena, Ana Maria Garcia-Lopez, Antonio Delgado
Summary: Phosphorus (P) is a non-renewable resource that will become scarce in the future, which will limit agricultural sustainability. Recycling P sources, such as vivianites and struvites obtained from water purification, are needed to ensure sustainability. In a pot experiment using wheat, struvites performed similarly to superphosphate and outperformed all types of vivianites in terms of plant growth and P uptake. Differences in performance among vivianites can be attributed to factors including Fe2+ to Fe3+ ratios, crystal sizes, and morphology. Struvite B can replace up to 92% of superphosphate on a P uptake basis, while industrial process vivianite can replace up to 75% of superphosphate on a dry matter yield basis.
Article
Horticulture
Carolina Mancho, Sergio Diez-Pascual, Juan Alonso, Mar Gil-Diaz, Pilar Garcia-Gonzalo, M. Carmen Lobo
Summary: The global rise in population has led to an increased demand for high-quality food production. Phosphorus (P) is an essential element for plant growth, but its supply from phosphate rock is becoming scarce and expensive. Alternative sources of P, such as struvite (MgNH4PO4·6H2O) from wastewater, are being studied. This research evaluated the efficiency of struvite as a fertilizer for lettuce production and found that it had similar biomass results to conventional P fertilizers.
Article
Engineering, Environmental
Alon Rabinovich, Joseph R. Heckman, Beni Lew, Ashaki A. Rouff
Summary: The study investigated the recovery of phosphate as struvite from dairy lagoon wastewater, demonstrating that increasing magnesium concentration can reduce thermal losses of NH4-N and decrease the sorption of micronutrients in the recovered solids. This suggests that lower magnesium concentrations during phosphate recovery can be beneficial for increasing micronutrient content and reducing NH4-N thermal losses in the produced struvite fertilizer.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Antonio Santos Sanchez, Gesaina Martins
Summary: In the metropolitan region of Buenos Aires, nutrient discharged into urban rivers and shores are causing severe eutrophication in the estuary of La Plata River. Various nutrient recovery options were considered, but economic sustainability was a challenge. Despite potential environmental benefits, the production of fertilizer products in existing facilities using the considered options may not be profitable.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
C. MacDonnell, F. Bydalek, T. Z. Osborne, A. Beard, S. Barbour, D. Leonard, J. Makinia, P. W. Inglett
Summary: The use of fertilizers in seagrass restoration can lead to excessive nutrient discharge and impact the surrounding ecosystem. This study found that using struvite, a slow-release fertilizer, in seagrass restoration was more effective in promoting seagrass growth and reducing nutrient discharge compared to the commonly used polymer coated controlled release fertilizer, Osmocote (TM).
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Qian Guan, Yingpeng Li, Yun Zhong, Wei Liu, Jiajie Zhang, Xin Yu, Ranwen Ou, Guisheng Zeng
Summary: Nutrient recovery from wastewater through struvite crystallization is a sustainable solution to reduce nutrient load and environmental problems in aquatic ecosystems. This review provides an overview of the properties and crystallization process of struvite, examines variables influencing recovery efficiency and product purity, discusses advanced auxiliary technologies, and highlights the economic and environmental benefits. However, the shortcomings and future research prospects are also presented. This work lays the foundation for the future use of struvite crystallization technology in nutrient recovery.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Amol Shukla, Om Prakash, Rima Biswas, Ritesh Vijay, Sukdeb Pal
Summary: This study explored the removal of ammonia and recovery of resources from complex pharmaceutical wastewater, achieving optimal operating parameters through experimental design and process optimization. The results confirmed the effectiveness of the method in removing ammonia and recovering struvite, and techno-economic assessment revealed its economic viability for industrial applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Soil Science
Joanne R. Thiessen Martens, Oban D. Srinathan, Inoka Amarakoon
Summary: Wastewater-derived struvite is a promising slow-release phosphorus (P) fertilizer, but its behavior in soil needs more research. After 20 days of incubation in two different low-P soils, the Olsen-P concentrations in soil surrounding struvite granules were much lower than monoammonium phosphate (MAP) amended soil. This suggests that the fertilizing effect of struvite may be localized in soil.
CANADIAN JOURNAL OF SOIL SCIENCE
(2023)
Article
Agronomy
Isabel S. de Soto, Miguel Itarte, Inigo Virto, Andrea Lopez, Jairo Gomez, Alberto Enrique
Summary: This article evaluates the use of two struvite-containing materials from wastewater treatment as an N fertilizer in agricultural soils. The study finds that these materials have a positive effect on soil fertility, especially in acidic soils where struvite seems to be more soluble. However, the use of these materials also leads to an increase in soil salt content, which should be controlled for continuous application of amendments.
Article
Engineering, Environmental
Sana ur Rehman, Shahzada Sohail Ijaz, Muhammad Ali Raza, Shroz Fatima, Nabeeha Javed, Muhammad Irfan, Sajad Hussain, Ayesha Siddiqa, Muhammad Lateef, Atta ur Rehman Khan, Rameez Akram Khan, Touqeer Ahmad
Summary: A major portion of phosphatic fertilizer comes from rock phosphate, a limited natural resource. Struvite, a low solubility crystalline mineral, is a worthwhile alternative. This study evaluated local wastewater streams for struvite precipitation and its effectiveness as a phosphatic fertilizer in alkaline soil environments.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Maharaja Pounsamy, Patchai Murugan Karmegam, Sekaran Ganesan
Summary: This study investigated the removal of COD and ammoniacal nitrogen from tannery deliming wastewater using a bioreactor and reactive struvite crystallization process. The bioreactor successfully removed 90% of the organic content at a retention time of 24 hours. The reactive struvite crystallization process achieved a conversion rate of over 93% for ammoniacal nitrogen into struvite fertilizer.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Asamin Yesigat, Abebe Worku, Addisu Mekonnen, Wookeun Bae, Gudina Legese Feyisa, Shetie Gatew, Jing-Long Han, Wenzong Liu, Aijie Wang, Awoke Guadie
Summary: Currently, there is a need to shift towards resource recycling and reuse due to the depletion of natural resources and contamination of the surrounding environment. Phosphorus (P) is a model nutrient that is facing depletion and causing environmental degradation, prompting the search for solutions. One viable option is the recovery of P as struvite from wastewater, with K-struvite being a promising approach. However, there is a lack of information regarding the crystallization of K-struvite. This study provides insights into the recovery of K-struvite from wastewater as a slow-release fertilizer.
ENVIRONMENTAL RESEARCH
(2022)
Article
Plant Sciences
Stella F. Valle, Amanda S. Giroto, Gelton G. F. Guimaraes, Kerstin A. Nagel, Anna Galinski, Jens Cohnen, Nicolai D. Jablonowski, Caue Ribeiro
Summary: In response to the alarming world population growth and its threat to food security, the development of sustainable fertilizer alternatives becomes urgent. This study examines the use of fertilizer containing a polysulfide matrix with dispersed struvite for improved soybean productivity. The research shows that the composite fertilizer has the potential to enhance biomass and root system development, leading to increased soybean yield.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Stella Fortuna do Valle, Amanda Soares Giroto, Heitor Pontes Gestal Reis, Gelton G. F. Guimaraes, Caue Ribeiro
Summary: The development of smart and eco-friendly fertilizers is crucial for sustainable food security. Phosphate rock and struvite are promising alternatives for phosphorus fertilization, but their solubility presents a challenge for consistent use efficiency. A novel controlled-release fertilizer matrix using a polysulfide obtained via inverse vulcanization shows potential in improving phosphorus solubilization and sulfur availability for plants in soil.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Agronomy
Krzysztof Pawelec, Hanna Siwek, Teodor Kitczak, Malgorzata Wlodarczyk
Summary: The study investigated the use of a novel fertilizer preparation and found it to have positive effects on plant growth, with AFP showing advantages in certain elements. It has the potential to compete with mineral fertilizers and aligns with the EU circular economy vision.
