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Zhang J, Akyol Ç, Meers E. Nutrient recovery and recycling from fishery waste and by-products. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119266. [PMID: 37844400 DOI: 10.1016/j.jenvman.2023.119266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/18/2023]
Abstract
The circular bio-based economy offers great untapped potential for the food industry as possible valuable products and energy can be recovered from food waste. This can promote more sustainable and resilient food systems in Europe in follow-up of the European Commission's Farm to Fork strategy and support the global transition to more sustainable agri-food systems with the common agricultural and fisheries policies. With its high nutrient content, waste and by-products originating from fish and seafood industry (including aquaculture) are one of the most promising candidates to produce alternative fertilising products which can play a crucial role to replace synthetic mineral fertilisers. Whereas several studies highlighted the opportunities to recover valuable compounds from fishery waste, study towards their potential for the production of fertilising products is still scarce. This study presents an extensive overview of the characteristics of fishery waste and by-products (i.e., fish processing waste, fish sludge, seafood waste/by-products), the state-of-the-art nutrient recovery technologies and recovered nutrients as fertilising products from these waste streams. The European Commission has already adopted a revised Fertilising Products Regulation (EU) 2019/1009 providing opportunities for fertilising products from various bio-based origins. In frame of this opportunity, we address the quality and safety aspects of the fishery waste-derived fertilising products under these criteria and highlight possible obstacles on their way to the market in the future. Considering its high nutrient content and vast abundance, fish sludge has a great potential but should be treated/refined before being applied to soil. In addition to the parameters currently regulated, it is crucial to consider the salinity levels of such fertilising products as well as the possible presence of other micropollutants especially microplastics to warrant their safe use in agriculture. The agronomic performance of fishery waste-derived fertilisers is also compiled and reported in the last section of this review paper, which in most cases perform equally to that of conventional synthetic fertilisers.
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Affiliation(s)
- Jingsi Zhang
- Department of Green Chemistry & Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Çağrı Akyol
- Department of Green Chemistry & Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Erik Meers
- Department of Green Chemistry & Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
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Mugwili ME, Waanders FB, Masindi V, Fosso-Kankeu E. An update on sustainabilities and challenges on the removal of ammonia from aqueous solutions: A state-of-the-art review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119172. [PMID: 37793297 DOI: 10.1016/j.jenvman.2023.119172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 09/11/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023]
Abstract
An insightful attempt has been made in this review and the primary objective was to meticulously provide an update on the sustainabilities, advances and challenges pertaining the removal of ammonia from water and wastewater. Specifically, ammonia is a versatile compound that prevails in various spheres of the environment, and if not properly managed, this chemical species could pose severe ecological pressure and toxicity to different receiving environments and its biota. The notorious footprints of ammonia could be traced to anoxic conditions, an infestation of aquatic ecosystems, hyperactivity, convulsion, and methaemoglobin, popularly known as the "blue baby syndrome". In this review, latest updates regarding the sustainabilities, advancements and challenges for the removal of ammonia from aqueous solutions, i.e., river and waste waters, are briefly elucidated in light of future perspectives. Viable routes and ideal hotspots, i.e., wastewater and drinking water, for ammonia removal under the cost-effective options have been unpacked. Key mechanisms for the removal of ammonia were grossly bioremediation, oxidation, adsorption, filtration, precipitation, and ion exchange. Finally, this review denoted biological nutrient removal, struvite precipitation, and breakpoint chlorination as the most effective and promising technologies for the removal of ammonia from aquatic environments, although at the expense of energy and operational cost. Lastly, the future perspective, avenues of exploitation, and technical facets that deserve in-depth exploration are duly underscored.
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Affiliation(s)
- Muyahavho Enemiah Mugwili
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa; Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa
| | - Frans Boudewijn Waanders
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa
| | - Vhahangwele Masindi
- Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa; Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa (UNISA), P. O. Box 392, Florida, 1710, South Africa.
| | - Elvis Fosso-Kankeu
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science Engineering and Technology (CSET), University of South Africa, Florida Science Campus, South Africa; Department of Mining Engineering, College of Science Engineering and Technology, University of South Africa, Florida Science Campus, South Africa
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Mugwili ME, Waanders FB, Masindi V, Fosso-Kankeu E. Effective removal of ammonia from aqueous solution through struvite synthesis and breakpoint chlorination: Insights into the synergistic effects of the hybrid system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 334:117506. [PMID: 36801679 DOI: 10.1016/j.jenvman.2023.117506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
The ever-growing contamination of surface water due to various catchment activities poses threats and stress to downstream water treatment entities. Specifically, the presence of ammonia, microbial contaminants, organic matter, and heavy metals has been an issue of paramount concern to water treatment entities since stringent regulatory frameworks require these pollutants to be removed prior to water consumption. Herein, a hybrid approach that integrates struvite crystallization (precipitation) and breakpoint chlorination (stripping) for the removal of ammonia from aqueous solution was evaluated. To fulfil the goals of this study, batch experimental studies were pursued through the adoption of the well-known one-factor-at-a-time (AFAAT) method, specifically the effects of time, concentration/dosage, and mixing speed. The fate of chemical species was underpinned using the state-of-the-art analytical instruments and accredited standard methods. Cryptocrystalline magnesium oxide nanoparticles (MgO-NPs) were used as the magnesium source while the high-test hypochlorite (HTH) was used as the source of chlorine. From the experimental results, the optimum conditions were observed to be, i.e., Stage 1 - struvite synthesis, 110 mg/L of Mg and P dosage (concentration), 150 rpm of mixing speed, 60 min of contact time, and lastly, 120 min of sedimentation while optimum condition for the breakpoint chlorination (Stage 2) were 30 min of mixing and 8:1 Cl2:NH3 weight ratio. Specifically, in Stage 1, i.e., MgO-NPs, the pH increased from 6.7 to ≥9.6, while the turbidity was reduced from 9.1 to ≤1.3 NTU. Mn removal efficacy attained ≥97.70% (reduced from 174 μg/L to 4 μg/L) and Fe attained ≥96.64% (reduced from 11 mg/L to 0.37 mg/L). Elevated pH also led to the deactivation of bacteria. In Stage 2, i.e. breakpoint chlorination, the product water was further polished by eliminating residual ammonia and TPC at 8:1 Cl2-NH3 weight ratio. Interestingly, ammonia was reduced from 6.51 to 2.1 mg/L in Stage 1 (67.74% removal) and then from 2.1 to 0.002 mg/L post breakpoint chlorination (99.96% removal), i.e., stage 2. Overall, synergistic and complementary effects of integrating struvite synthesis and breakpoint chlorination hold great promise for the removal of ammonia from aqueous solutions thus confirming that this technology could potentially be used to curtail the effects of ammonia in the receiving environments and drinking water.
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Affiliation(s)
- Muyahavho Enemiah Mugwili
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa; Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa
| | - Frans Boudewijn Waanders
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa
| | - Vhahangwele Masindi
- Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa; Department of Environmental Sciences, School of Agriculture and Environmental Sciences, University of South Africa (UNISA), P. O. Box 392, Florida, 1710, South Africa.
| | - Elvis Fosso-Kankeu
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science Engineering and Technology (CSET), University of South Africa, Florida Science Campus, South Africa; Department of Mining Engineering, College of Science Engineering and Technology, University of South Africa, Florida Science Campus, South Africa
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Xu S, Jia K, Zheng Y, Chen W, Wang Z, Wei D, Sun B, Cheng M, Fan B, Li J, Wei Y. Phosphorus transformation behavior and phosphorus cycling genes expression in food waste composting with hydroxyapatite enhanced by phosphate-solubilizing bacteria. BIORESOURCE TECHNOLOGY 2023; 376:128882. [PMID: 36925077 DOI: 10.1016/j.biortech.2023.128882] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to explore the effect of phosphate-solubilizing bacteria (PSB) Bacillus inoculation in the cooling stage on hydroxyapatite dissolution, phosphorus (P) forms transformation, and bacterial P cycling genes in food waste composting with hydroxyapatite. Results indicated that PSB inoculation promoted the dissolution of hydroxyapatite, increased P availability of compost by 8.1% and decreased the ratio of organic P to inorganic P by 10.2% based on sequential fractionation and 31P nuclear magnetic resonance spectroscopy. Illumina sequencing indicated Bacillus relative abundance after inoculation increased up to one time higher than control after the cooling stage. Network analysis and metabolic function of bacterial community analysis suggested inorganic P solubilizing genes of Bacillus and organic P mineralization genes of other genera were improved after inoculation in the core module. Therefore, bioaugmentation of PSB in the cooling stage may be a potential way to improve P bioavailability of bone and food waste in composting.
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Affiliation(s)
- Shaoqi Xu
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China
| | - Kaixue Jia
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China
| | - Yi Zheng
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China; Organic Recycling Research Institute (Suzhou) of China Agricultural University, Suzhou 215100, China
| | - Wenjie Chen
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China; Organic Recycling Research Institute (Suzhou) of China Agricultural University, Suzhou 215100, China
| | - Zhigang Wang
- Beijing DBN Agriculture Science and Technology Group CO., Ltd., DBN Pig Academy, Beijing 102629, China
| | - Dan Wei
- Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Baoru Sun
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China
| | - Meidi Cheng
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Beibei Fan
- Organic Recycling Research Institute (Suzhou) of China Agricultural University, Suzhou 215100, China
| | - Ji Li
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China; Organic Recycling Research Institute (Suzhou) of China Agricultural University, Suzhou 215100, China
| | - Yuquan Wei
- College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China; Organic Recycling Research Institute (Suzhou) of China Agricultural University, Suzhou 215100, China.
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Hart A, Ebiundu K, Peretomode E, Onyeaka H, Nwabor OF, Obileke K. Value-added materials recovered from waste bone biomass: technologies and applications. RSC Adv 2022; 12:22302-22330. [PMID: 36043087 PMCID: PMC9364440 DOI: 10.1039/d2ra03557j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/20/2022] [Indexed: 12/22/2022] Open
Abstract
As the world population increases, the generation of waste bones will multiply exponentially, increasing landfill usage and posing health risks. This review aims to shed light on technologies for recovering valuable materials (e.g., alkaline earth material oxide such as CaO, hydroxyapatite, beta tri-calcium phosphate, phosphate and bone char) from waste bones, and discuss their potential applications as an adsorbent, catalyst and catalyst support, hydroxyapatite for tissue engineering, electrodes for energy storage, and phosphate source for soil remediation. Waste bone derived hydroxyapatite and bone char have found applications as a catalyst or catalyst support in organic synthesis, selective oxidation, biodiesel production, hydrocracking of heavy oil, selective hydrogenation and synthesis of bioactive compounds. With the help of this study, researchers can gather comprehensive data on studies regarding the recycling of waste bones, which will help them identify material recovery technologies and their applications in a single document. Furthermore, this work identifies areas for further research and development as well as areas for scaling-up, which will lead to reduced manufacturing costs and environmental impact. The idea behind this is to promote a sustainable environment and a circular economy concept in which waste bones are used as raw materials to produce new materials or for energy recovery.
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Affiliation(s)
- Abarasi Hart
- Department of Chemical and Biological Engineering, The University of Sheffield Sheffield S1 3JD UK
| | - Komonibo Ebiundu
- Department of Chemical Engineering, Niger Delta University Wilberforce Island Nigeria
| | | | - Helen Onyeaka
- School of Chemical Engineering, University of Birmingham Edgbaston Birmingham B15 2TT UK +44 (0)1214145292
| | - Ozioma Forstinus Nwabor
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University Hat Yai Songkhla 90110 Thailand
| | - KeChrist Obileke
- Department of Physics, University of Fort Hare PMB X1314 Alice 5700 South Africa
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Effects of Calcium on the Removal of Ammonium from Aged Landfill Leachate by Struvite Precipitation. WATER 2022. [DOI: 10.3390/w14121933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Ammonium in landfill leachates is a major contributor to environmental degradation if not effectively treated. However, it could be converted to a valuable fertilizer when it is co-precipitated with phosphate and magnesium as struvite. Low-cost magnesium and phosphate sources are sought to offset the co-precipitation treatment costs, but most of the identified alternative magnesium sources have significant amounts of calcium, which may negatively impact the ammonium removal rates. In this study, the effects of calcium on ammonium removal from high-strength aged field landfill leachate as struvite were investigated. Laboratory-scale batch tests were conducted to assess the effects of the pH, Mg2+:NH4+:PO43−, and Ca2+:Mg2+ molar ratios on ammonium removal. Magnesium chloride salt was used as a model dissolved magnesium source, whereas different compounds derived from dolomite (CaMg(CO3)2) were used as model solid-phase magnesium sources. X-ray powder diffraction and activity ratio diagrams were used to delineate the ammonium removal mechanisms and struvite stability. The ammonium removal rate of the magnesium salt decreased from approximately 97% to 70%, upon increasing the Ca2+:Mg2+ molar ratio from 0 to 1.0, for the Mg2+:NH4+:PO43− molar ratio of 1.25:1:1.25 and pH = 9.5. For similar pH values, as well as the Mg2+:NH4+:PO43− and Ca2+:Mg2+ molar ratios, the ammonium removal rates by the dolomite-derived compounds reached up to 55%, which highlighted the limited availability of magnesium in solid phases, in addition to the negative impacts of calcium. The diffractometric analysis and thermodynamic calculations revealed the stable regions of struvite in the presence of competing solid phases. The new findings in this study could aid in the design of ammonium and phosphate removal and recovery systems by struvite precipitation.
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Samoraj M, Mironiuk M, Izydorczyk G, Witek-Krowiak A, Szopa D, Moustakas K, Chojnacka K. The challenges and perspectives for anaerobic digestion of animal waste and fertilizer application of the digestate. CHEMOSPHERE 2022; 295:133799. [PMID: 35114259 DOI: 10.1016/j.chemosphere.2022.133799] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/21/2022] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
The increase in livestock production creates a serious problem of managing animal waste and by-products. Among the wide range of waste valorization methods available, anaerobic digestion is very promising. It is a form of material recycling that also produces renewable energy in the form of biogas, which is reminiscent of energy recycling. The effluent and digestate from the anaerobic digestion process need to be processed further. These materials are widely used in agriculture due to their composition. Both the liquid and solid fractions of digestate are high in nitrogen, making them a valuable source for plants. Before soil or foliar application, conditioning (e.g., with inorganic acids) and neutralization (e.g., with potassium hydroxide) is required to eliminate odorous compounds and microorganisms. Various methods of conducting the process by anaerobic digestion (use of additives increasing activity of microorganisms, co-digestion, multiple techniques of substrate preparation) and the possibility of controlling process parameters such as optimal C/N ratio (15-30), optimal temperature (psychrophilic (<20 °C), mesophilic (35-37 °C) and thermophilic (55 °C) for microorganism activity ensure high efficiency of the process. Literature data describing tests of various digestates on different plants prove high efficiency, determined by yield increase (even by 28%), nitrogen uptake (by 20%) or phosphorus recovery rate (by 43%) or increase of biometric parameters (e.g., leaf area).
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Affiliation(s)
- Mateusz Samoraj
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland.
| | - Małgorzata Mironiuk
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland
| | - Grzegorz Izydorczyk
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland
| | - Anna Witek-Krowiak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland
| | - Daniel Szopa
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland
| | - Konstantinos Moustakas
- School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str, Zographou Campus, GR-15780, Athens, Greece
| | - Katarzyna Chojnacka
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland
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Witek-Krowiak A, Gorazda K, Szopa D, Trzaska K, Moustakas K, Chojnacka K. Phosphorus recovery from wastewater and bio-based waste: an overview. Bioengineered 2022; 13:13474-13506. [PMID: 36700471 PMCID: PMC9275867 DOI: 10.1080/21655979.2022.2077894] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Phosphorus is one of the most important macronutrients needed for the growth of plants. The fertilizer production market uses 80% of natural, non-renewable phosphorus resources in the form of phosphate rock. The depletion of those deposits forces a search for other alternatives, including biological waste. This review aims to indicate the most important ways to recover phosphorus from biowaste, with particular emphasis on wastewater, sewage sludge, manure, slaughter or food waste. A comparison of utilized methods and directions for future research based on the latest research is presented. Combining biological, chemical, and physical methods with thermal treatment appears to be the most effective way for the treatment of wastewater sludge in terms of phosphorus recovery. Hydrothermal, thermochemical, and adsorption on thermally treated adsorbents are characterized by a high phosphorus recovery rate (over 95%). For animal by-products and other biological waste, chemical methods seems to be the most optimal solution with a recovery rate over 96%. Due to its large volume and relatively low phosphorus content, wastewater is a resource that requires additional treatment to recover the highest possible amount of phosphorus. Pretreatment of wastewater with combined methods seems to be a possible way to improve phosphorus recovery. A compressive evaluation of combined methods is crucial for future research in this area.
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Affiliation(s)
- Anna Witek-Krowiak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Katarzyna Gorazda
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Cracow, Poland
| | - Daniel Szopa
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland,CONTACT Daniel Szopa Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Smoluchowskiego 25, Wrocław50-372, Poland
| | - Krzysztof Trzaska
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | | | - Katarzyna Chojnacka
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
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Biswas PP, Turner-Walker G, Rathod J, Liang B, Wang CC, Lee YC, Sheu HS. Sustainable phosphorus management in soil using bone apatite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 305:114344. [PMID: 34953223 DOI: 10.1016/j.jenvman.2021.114344] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Soil fertility and phosphorus management by bone apatite amendment are receiving increasing attention, yet further research is needed to integrate the physicochemical and mineralogical transformation of bone apatite and their impact on the supply and storage of phosphorus in soil. This study has examined bone transformation in the field over a span of 10-years using a set of synchrotron-based microscopic and spectroscopic techniques. Transmission X-ray microscopy (TXM) observations reveal the in-situ deterioration of bone osteocyte-canaliculi system and sub-micron microbial tunneling within a year. Extensive organic decomposition, secondary mineral formation and re-mineralization of apatite are evident from the 3rd year. The relative ratio of (v1 + v3) PO43- to v3 CO32- and to amide I increase, and the v3c PO43- peak exhibits a blue-shift in less than 3 years. The carbonate substitution of bone hydroxyapatite (HAp) to AB-type CHAp, and phosphate crystallographic rearrangement become apparent after 10 years' aging. The overall CO32- peak absorbance increases over time, contributing to a higher acid susceptibility in the aged bone. The X-ray Photoelectron Spectroscopy (XPS) binding energies for Ca (2p), P (2p) and O (1s) exhibit a red-shift after 1 year because of organo-mineral interplay and a blue-shift starting from the 3rd year as a result of the de-coupling of mineral and organic components. Nutrient supply to soil occurs within months via organo-mineral decoupling and demineralization. More phosphorus has been released from the bones and enriched in the associated and adjacent soils over time. Lab incubation studies reveal prominent secondary mineral formation via re-precipitation at a pH similar to that in soil, which are highly amorphous and carbonate substituted and prone to further dissolution in an acidic environment. Our high-resolution observations reveal a stage-dependent microbial decomposition, phosphorus dissolution and immobilization via secondary mineral formation over time. The active cycling of phosphorus within the bone and its interplay with adjacent soil account for a sustainable supply and storage of phosphorus nutrients.
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Affiliation(s)
| | - Gordon Turner-Walker
- Department of Cultural Heritage Conservation, National Yunlin University of Science & Technology, Douliu, Taiwan
| | - Jagat Rathod
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Biqing Liang
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan.
| | | | - Yao-Chang Lee
- National Synchrotron Radiation Center, Hsinchu, Taiwan; Department of Optics and Photonics, National Central University, Chung-Li, Taiwan; Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan
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10
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Advances in Struvite Precipitation Technologies for Nutrients Removal and Recovery from Aqueous Waste and Wastewater. SUSTAINABILITY 2020. [DOI: 10.3390/su12187538] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The abatement of nutrient compounds from aqueous waste and wastewater is currently a priority issue. Indeed, the uncontrolled discharge of high levels of nutrients into water bodies causes serious deteriorations of environmental quality. On the other hand, the increasing request of nutrient compounds for agronomic utilizations makes it strictly necessary to identify technologies able to recover the nutrients from wastewater streams so as to avoid the consumption of natural resources. In this regard, the removal and recovery of nitrogen and phosphorus from aqueous waste and wastewater as struvite (MgNH4PO4·6H2O) represents an attractive approach. Indeed, through the struvite precipitation it is possible to effectively remove the ammonium and phosphate content of many types of wastewater and to produce a solid compound, with only a trace of impurities. This precipitate, due to its chemical characteristics, represents a valuable multi-nutrients slow release fertilizer for vegetables and plants growth. For these reasons, the struvite precipitation technology constantly progresses on several aspects of the process. This manuscript provides a comprehensive review on the recent developments in this technology for the removal and recovery of nutrients from aqueous waste and wastewater. The theoretical background, the parameters, and the operating conditions affecting the process evolution are initially presented. After that, the paper focuses on the reagents exploitable to promote the process performance, with particular regard to unconventional low-cost compounds. In addition, the development of reactors configurations, the main technologies implemented on field scale, as well as the recent works on the use of struvite in agronomic practices are presented.
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Ahuja I, Dauksas E, Remme JF, Richardsen R, Løes AK. Fish and fish waste-based fertilizers in organic farming - With status in Norway: A review. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 115:95-112. [PMID: 32736033 DOI: 10.1016/j.wasman.2020.07.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/08/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
This paper reviews relevant knowledge about the production and uses of fertilizers from fish and fish waste (FW) that may be applicable for certified organic farming, with a focus on crop and horticultural plants. Fish industries generate a substantial amount of FW. Depending on the level of processing or type of fish, 30-70% of the original fish is FW. Circular economy and organic farming concepts were used to evaluate the potential of production of fertilizers from captured fish. Fertilizers produced from captured fish promote the recycling of nutrients from the sea and back to terrestrial environments. Nutritional composition of FW is assessed to determine the potential to supply plant nutrients such as nitrogen, or a combination of nitrogen and phosphorous, or to enrich a compost. Methods used in processing of FW to produce fish- emulsion, fish hydrolysate/fish silage, fish-compost and digestate from anaerobic digestion/co-digestion are presented. Using information about commercially available fish-based fertilizers listed by the Organic Materials Review Institute (OMRI), we present a scenario for establishing fish/FW-based fertilizers industry and research in Europe. With Norway's 9th position among top ten global capture producers and focus in Norway on developing organic farming, we brief how FW is currently utilized and regulated, and discuss its availability for possible production of FW-based organic fertilizers. The amount of FW available in Norway for production of fertilizers may facilitate the establishment of an industrial product that can replace the currently common use of dried poultry manure from conventional farming in organic farming.
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Affiliation(s)
- Ishita Ahuja
- Norwegian Centre for Organic Agriculture (NORSØK), NO-6630 Tingvoll, Norway.
| | - Egidijus Dauksas
- Department of Biological Sciences, Norwegian University of Science and Technology (NTNU), Ålesund, Norway
| | | | | | - Anne-Kristin Løes
- Norwegian Centre for Organic Agriculture (NORSØK), NO-6630 Tingvoll, Norway
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12
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Luyckx L, Geerts S, Van Caneghem J. Closing the phosphorus cycle: Multi-criteria techno-economic optimization of phosphorus extraction from wastewater treatment sludge ash. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:135543. [PMID: 31785920 DOI: 10.1016/j.scitotenv.2019.135543] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
The presence of heavy metals in concentrations above legal limit values is one of the main obstacles preventing closure of the phosphorus (P) cycle through directly applying wastewater treatment sludge ash as a fertilizer. Therefore, an alternative procedure is proposed to recover the valuable P from the sludge ash via wet chemical extraction. This comprehensive study uses several inorganic and organic acids, chelating agents and an alkaline solution to establish optimal and cost-effective conditions for wet P extraction from sludge ash. The optimization takes into account co-extraction of the following heavy metals: Cd, Cr, Cu, Ni, Pb and Zn. Design of experiments results show extraction liquid concentration, liquid/solid ratio and contact time all affect P and heavy metal extraction efficiency, both individually and through interaction. In addition, type of extraction liquid and pH at the end of the extraction procedure also affect P and heavy metal extraction efficiency. Combining results of XRD and SEM-EDX analysis with extraction data shows that at a pH <2, both Ca- and Al-phosphates in the ash dissolve easily. However, at slightly higher pH only Ca-phosphates dissolve well and at alkaline pH only Al-phosphates. The best trade-off between high P extraction, low heavy metal co-extraction and low operational costs is obtained with H2SO4 (0.5 N, 10 ml/g, 120 min) and oxalic acid (0.5 N, 12.8 ml/g, 120 min). H2SO4 outperforms the other extraction liquids in terms of extraction liquid costs per kg P extracted, whereas extraction with oxalic acid results in the lowest heavy metal co-extraction, thus reducing the downstream processing costs. None of the extraction liquids considered is appropriate for heavy metal removal prior to P extraction due to loss of P and insufficient heavy metal removal.
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Affiliation(s)
- Lorien Luyckx
- Materials Technology TC, KU Leuven, Campus Group T, Andreas Vesaliusstraat 13, box 2600, 3000 Leuven, Belgium.
| | - Sam Geerts
- Aquafin NV, Dijkstraat 8, 2630 Aartselaar, Belgium
| | - Jo Van Caneghem
- Materials Technology TC, KU Leuven, Campus Group T, Andreas Vesaliusstraat 13, box 2600, 3000 Leuven, Belgium
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13
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Abstract
Heavy metal contamination in soils has become one of the most critical environmental issues. The most efficient in-situ remediation technique is chemical immobilization that uses cost-effective soil amendments such as phosphate compounds to decrease Pb, Cd and Zn accessibility in the contaminated soils. The present study examined the effectiveness of KH2PO4 in immobilizing Pb, Cd and Zn in three samples of contaminated soils collected from ZGH “Bolesław” (Mining and Smelting Plant “Bolesław”). Effectiveness was evaluated using the following methods: a toxicity characteristic leaching procedure (TCLP)-based experiment, sequential extraction, X-ray diffraction analyses (XRD), and scanning electron microscopy–energy dispersive spectroscopy (SEM–EDS). The most efficient percentage reduction of total leachable metal concentration assessed by TCLP was observed for lead (50%–80%), and the least reduction was observed for zinc (1%–17%). The most effective immobilization of stable compounds assessed by sequential extraction was noted for lead, while the weakest immobilization was noted for cadmium. New insoluble mineral phases were identified by SEM-EDS analysis. Cd, Zn, and Pb formed new stable mineral substances with phosphates. The predominant crystal forms were dripstones and groups of needles, which were easily formed by dissolved carbon rock surfaces containing zinc ions. The alkaline nature of the soil and a large number of carbonates mainly influenced the formation of new structures.
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Bayuseno AP, Perwitasari DS, Muryanto S, Tauviqirrahman M, Jamari J. Kinetics and morphological characteristics of struvite (MgNH 4PO 4.6H 2O) under the influence of maleic acid. Heliyon 2020; 6:e03533. [PMID: 32215325 PMCID: PMC7090354 DOI: 10.1016/j.heliyon.2020.e03533] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/22/2020] [Accepted: 03/02/2020] [Indexed: 11/29/2022] Open
Abstract
This work reports a stirred-batch lab crystallization to examine the influence of maleic acid (HO2CCHCHCO2H), and temperatures (30 and 40 °C) on crystallization kinetics and morphology of struvite. The crystallization was followed by measuring the pH change up to 70 min. The pH decreased drastically for the first 5 min of the run, then started to tail off. It was found that the crystallization rate constants range from 1.608 to 6.534 per hour, which agrees with the most published value. Higher maleic acid concentrations resulted in greater growth retardation; the highest retardation was 74.21%, which was achieved for 30 °C with 20.00 ppm maleic acid. SEM imaging of the obtained precipitates showed irregular prismatic morphology, and the associated EDX confirmed that the precipitates were struvite (MgNH4PO4⋅6H2O). As checked through XRD, the crystalline nature of the struvite was further confirmed, and that co-precipitation of struvite with struvite-K was observed. The co-precipitation was the result of K+ adsorption onto the crystal surface. Temperatures had less influence on struvite crystallization. At 40oC and 20.00 ppm the rate constant was 1.332 per hour; whereas at 30oC and 0.00 ppm) the corresponding was 1.776 per hour, indicating the retardation of about 25%. Thus, the temperature effect is only 1/3 of the maleic acid effect. The current findings suggest that the presence of maleic acid can be used to elucidate the mechanism of crystallization as well as the crystalline phase transformation of struvite. In practical terms, maleic acid could be potential as a scale inhibitor.
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Affiliation(s)
| | - Dyah Suci Perwitasari
- Department of Chemical Engineering, Universitas Pembangunan National "Veteran" Jawa Timur, Surabaya 60294 Indonesia
| | - Stefanus Muryanto
- Department of Chemical Engineering, UNTAG University in Semarang, Bendhan Dhuwur Campus, Semarang 50233, Indonesia
| | - Mohammad Tauviqirrahman
- Department of Mechanical Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
| | - Jamari Jamari
- Department of Mechanical Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
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15
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Kajjumba GW, Yıldırım E, Aydın S, Emik S, Ağun T, Osra F, Wasswa J. A facile polymerisation of magnetic coal to enhanced phosphate removal from solution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 247:356-362. [PMID: 31252234 DOI: 10.1016/j.jenvman.2019.06.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 05/21/2023]
Abstract
Globally, there are increased threats to available freshwater resources due to pollution, climate change, and increased demand from population growth. Phosphorus is one of the essential nutrients required for animal and plant growth. However, when it is released into freshwater resources in excess amounts, it can become a pollutant through eutrophication. This study aimed to enhance the removal of phosphate from water using modified coal. The coal was magnetised by in-situ synthesis using a precipitation technique. To obtain functional groups and mechanical stability, magnetised coal particles were coated with polyaniline, via the polymerisation of aniline to form Magnetised Unburnt Coal Polyaniline (MUC-PANI). The properties of MUC-PANI were investigated using TGA, BET, XRD, Raman spectroscopy, SEM, and FTIR. TGA reviewed MUC-PANI as 58% magnetised coal and 42% polyaniline, while the specific surface area increased from 30.0 to 42.2 m2/g after modification. SEM indicated a cauliflower structure on the surface of MUC-PANI due to the successful polymerisation of polyaniline. The FTIR spectrum showed successful adsorption of phosphate due to the formation of incipient peak at1008 cm-1. The adsorption kinetic data are better fitted to the Elovich model. The Langmuir adsorption capacity of MUC-PANI is 147.1 mg PO43-/g at 25 °C and pH 5.0 (initial concentration 10-200 mg/L, dose 0.8 g/L). MUC-PANI is a cost-efficient compound for removal of phosphate because it is made from readily available coal.
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Affiliation(s)
| | - Eren Yıldırım
- Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Serdar Aydın
- Department of Environmental Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Serkan Emik
- Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Tuba Ağun
- Department of Environmental Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Faisal Osra
- Department of Civil Engineering, Umm Al-qura University, Makkah, Saudi Arabia
| | - Joseph Wasswa
- Department of Civil and Environmental Engineering Syracuse University, NY, USA
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Wang H, Wang X, Zhao J. Application of MgO-modified palygorskite for nutrient recovery from swine wastewater: effect of pH, ions, and organic acids. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19729-19737. [PMID: 31090002 DOI: 10.1007/s11356-019-05254-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/10/2019] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
In this study, MgO-modified palygorskite (MgO-PAL) was used for simultaneous recovery of ammonia nitrogen (AN) and phosphate, and the effects of pH, ions, and organic acids on nutrient recovery were investigated. The highest removal amount of AN and phosphate separately reached 42.6 mg/g and 69.8 mg/g at pH of 9.0, 0.6 g/L dosage of modified palygorskite, and 180 min of the reaction time. MgO-PAL provided a wide range of pH (3-9) for nutrient removal. Mg released concentration was tested to investigate the removal mechanisms. The individual presence of four cations (K+, Ca2+, Na+, and Mg2+) showed negative effect on AN removal at different mass concentrations. However, those cations, except Na+, exhibited positive influence on phosphate removal. Compared with SO42-, CO32-showed more negative effect on nutrient removal due to the reaction between Mg2+ and CO32-. The results showed that the nutrient removal amount and the morphology and composition of collected products were not affected in the presence of acetic acid. Citric acid, humic acid, and fulvic acid displayed the inhibition effects on the morphology of the crystallized products.
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Affiliation(s)
- Hao Wang
- Guangdong Guangye Environmental Protection Industry Group Company Limited, Guangye Institute of Environmental Engineering Technology, Guangzhou, 510030, Guangdong, People's Republic of China
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
| | - Xuejiang Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China.
| | - Jianfu Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
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Huang G, Gao R, You J, Zhu J, Fu Q, Hu H. Oxalic acid activated phosphate rock and bone meal to immobilize Cu and Pb in mine soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 174:401-407. [PMID: 30851537 DOI: 10.1016/j.ecoenv.2019.02.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 02/23/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
The contamination of soil by copper (Cu) and lead (Pb) is a serious concern because of its high health risk via the food chain. Oxalic acid-activated phosphate rock (APR) and bone meal (BM) were applied to Cu and Pb co-contaminated soil to investigate their efficacy in the immobilization of Cu and Pb. APR and BM were applied into the contaminated soil (158.8 mg/kg total Pb and 573.2 mg/kg Cu) at four levels of dosages (0.1%, 0.5%, 2%, and 4%) and incubated for one year. The results demonstrated that the acid exchangeable Pb fraction in the soil treated with APR and BM decreased compared to the control, while there was no noticeable change in the acid-exchangeable Cu fraction in the soil treated with either APR or BM. Meanwhile, the application of BM and APR increased the fraction of residual Cu and Pb in the polluted soils. Moreover, the addition of either APR or BM at the dose of 4% decreased the concentrations of CaCl2-extractable Cu and Pb in the amended soil, and the percentages of that reduction in the APR amended soils were 56% and 91% and in BM amended soils were 67% and 64%, respectively. The immobilization of Cu and Pb by APR and BM might be induced by the increased soil pH and soluble P contents in the amended soils. In general, BM is more effective than APR on the immobilization of Cu in polluted soil, while APR had greater efficiency than BM on the immobilization of Pb when the levels of amendments were above 2%.
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Affiliation(s)
- Guoyong Huang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, China
| | - Ruili Gao
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, China
| | - Jinwei You
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, China
| | - Jun Zhu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, China
| | - Qingling Fu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, China
| | - Hongqing Hu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, China.
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The Use of Ca- and Mg-Rich Fly Ash as a Chemical Precipitant in the Simultaneous Removal of Nitrogen and Phosphorus—Recycling and Reuse. RECYCLING 2019. [DOI: 10.3390/recycling4020014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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)2HPO4 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)2HPO4 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 (NH4MgPO4·6H2O), 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.
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