| Title | The Use of Ca- and Mg-Rich Fly Ash as a Chemical Precipitant in the Simultaneous Removal of Nitrogen and Phosphorus-Recycling and Reuse |
|---|---|
| ID_Doc | 9000 |
| Authors | Myllymäki, P; Pesonen, J; Romar, H; Hu, T; Tynjälä, P; Lassi, U |
| Title | The Use of Ca- and Mg-Rich Fly Ash as a Chemical Precipitant in the Simultaneous Removal of Nitrogen and Phosphorus-Recycling and Reuse |
| Year | 2019 |
| Published | Recycling, 4.0, 2 |
| Abstract | The European Union's circular economy strategy aims to increase the recycling and re-use of products and waste materials. According to the strategy, the use of industry waste material should be more effective. A chemical precipitation method to simultaneously remove phosphorus and nitrogen from synthetic (NH4)(2)HPO4 solution and the liquid phase of anaerobic digestate using fly ash as a precipitant was tested. Fly ash is a waste material formed in the power plant process. It mainly contains calcium oxide (CaO) and magnesium oxide (MgO). Saturated precipitant solution was prepared from fly ash, which was added in small proportions to (NH4)(2)HPO4 solution during the experiment. Fly ash's effectiveness as a precipitant was compared with that of commercial CaO and MgO salts, and it can be observed that fly ash removed as much ammonium and phosphate as commercial salts. Fly ash sufficiently removed ammonium nitrogen and phosphate from the liquid phase of anaerobic digestate, which led to the formation of ammonium magnesium hydrogen phosphate hydrate, struvite (NH4MgPO4 center dot 6H(2)O), and calcium hydroxide phosphate, monetite, CaPO3(OH). In this study, we have shown for the first time that fly ash can be used to manufacture recycled, slow-release fertilizers from anaerobic digestate. |
Similar Articles
| ID | Score | Article |
|---|---|---|
9445
|
Myllymäki, P; Pesonen, J; Nurmesniemi, ET; Romar, H; Tynjälä, P; Hu, T; Lassi, U The Use of Industrial Waste Materials for the Simultaneous Removal of Ammonium Nitrogen and Phosphate from the Anaerobic Digestion Reject Water(2020)Waste And Biomass Valorization, 11.0, 8 | |
| 8983
|
Rusanescu, CO; Rusanescu, M Application of Fly Ash Obtained from the Incineration of Municipal Solid Waste in Agriculture(2023)Applied Sciences-Basel, 13.0, 5 | |
| 8962
|
Myllymäki, P; Pesonen, J; Romar, H; Hu, T; Tynjälä, P; Lassi, U The use of calcined paper mill sludge as a chemical precipitant in the simultaneous removal of ammonium and phosphate - paper mill waste recycling and reuse(2020) | |
| 6411
|
Assi, A; Bilo, F; Zanoletti, A; Ponti, J; Valsesia, A; La Spina, R; Zacco, A; Bontempi, E Zero-waste approach in municipal solid waste incineration: Reuse of bottom ash to stabilize fly ash(2020) | |
| 7627
|
Zhang, N; Huang, HD; Yang, RX; Zheng, AL; Moment, A Aqueous metal ion leaching processes from high sulfur coal fly ash for carbon mineralization: The importance of pH control on cation extraction, carbonate purity, and silicon Q structure(2023) | |
| 27597
|
Kirkelund, GM; Skevi, L; Ottosen, LM Electrodialytically treated MSWI fly ash use in clay bricks(2020) | |
| 6913
|
Sharifikolouei, E; Baino, F; Salvo, M; Tommasi, T; Pirone, R; Fino, D; Ferraris, M Vitrification of municipal solid waste incineration fly ash: An approach to find the successful batch compositions(2021)Ceramics International, 47, 6 | |
| 10740
|
Baklavaridis, AN; Samaras, PE; Karayannis, VG Recent progress in the advanced oxidation of wastewaters using recycled fly ashes as alternative catalytic agents(2018) | |
| 14549
|
Vilakazi, AQ; Ndlovu, S; Chipise, L; Shemi, A The Recycling of Coal Fly Ash: A Review on Sustainable Developments and Economic Considerations(2022)Sustainability, 14, 4 | |
| 12955
|
Abelenda, AM; Semple, KT; Lag-Brotons, AJ; Herbert, BJ; Aggidis, G; Aiouache, F Effects of Wood Ash-Based Alkaline Treatment on Nitrogen, Carbon, and Phosphorus Availability in Food Waste and Agro-Industrial Waste Digestates(2021)Waste And Biomass Valorization, 12.0, 6 |