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Wolffers M, Kulik DA, Miron GD, Eggenberger U, Churakov SV. Thermodynamic model of MSWI flue gas cooling path: Effect of flue gas composition on heavy metal binding forms. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2024; 42:273-284. [PMID: 37313852 DOI: 10.1177/0734242x231178213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In the context of circular economy and heavy metal (HM) recovery from municipal solid waste incineration (MSWI) fly ash (FA), detailed knowledge of HM binding forms is required for achieving higher extraction rates. The FA mineralogy is still poorly understood due to its low grain size and low metal concentration. To investigate the HM binding forms, a sophisticated thermodynamic reactive transport model was developed to simulate ash-forming processes. The stability of different binding forms was investigated at different flue gas conditions (varying ratios of HCl, SO2, O2) by simulating the gas cooling path in closed system and dynamic open system, where the gas composition is changing upon cooling due to precipitation of solids. The simulations predict that at flue gas conditions of molar ratio S/Cl < 1, Cu and Zn precipitate as oxides (and Zn silicates) at approximately 650°C. At temperatures <300°C, Zn, Cu, Pb and Cd are predicted to precipitate as easily soluble chlorides. In flue gas with molar ratio S/Cl > 1, the HM precipitate as less soluble sulphates. The results indicate that the less soluble HM fraction in the electrostatic precipitator ash represent oxides and silicates that formed in the boiler section but were transported to the electrostatic precipitator. The model provides insight into the physical-chemical processes controlling the metal accumulation in the flue gas and FA during the cooling of the flue gas. The obtained data serve as valuable basis for improving metal recovery from MSWI FA.
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Affiliation(s)
- Mirjam Wolffers
- Institute of Geological Sciences, University of Bern, Bern, Switzerland
| | - Dmitrii A Kulik
- Laboratory for Waste Management, Paul Scherrer Institute, Villigen, Switzerland
| | - George-Dan Miron
- Laboratory for Waste Management, Paul Scherrer Institute, Villigen, Switzerland
| | - Urs Eggenberger
- Institute of Geological Sciences, University of Bern, Bern, Switzerland
| | - Sergey V Churakov
- Institute of Geological Sciences, University of Bern, Bern, Switzerland
- Laboratory for Waste Management, Paul Scherrer Institute, Villigen, Switzerland
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2
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Funari V, Toller S, Vitale L, Santos RM, Gomes HI. Urban mining of municipal solid waste incineration (MSWI) residues with emphasis on bioleaching technologies: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:59128-59150. [PMID: 37041362 DOI: 10.1007/s11356-023-26790-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/29/2023] [Indexed: 05/10/2023]
Abstract
Metals are essential in our daily lives and have a finite supply, being simultaneously contaminants of concern. The current carbon emissions and environmental impact of mining are untenable. We need to reclaim metals sustainably from secondary resources, like waste. Biotechnology can be applied in metal recovery from waste streams like fly ashes and bottom ashes of municipal solid waste incineration (MSWI). They represent substantial substance flows, with roughly 46 million tons of MSWI ashes produced annually globally, equivalent in elemental richness to low-grade ores for metal recovery. Next-generation methods for resource recovery, as in particular bioleaching, give the opportunity to recover critical materials and metals, appropriately purified for noble applications, in waste treatment chains inspired by circular economy thinking. In this critical review, we can identify three main lines of discussion: (1) MSWI material characterization and related environmental issues; (2) currently available processes for recycling and metal recovery; and (3) microbially assisted processes for potential recycling and metal recovery. Research trends are chiefly oriented to the potential exploitation of bioprocesses in the industry. Biotechnology for resource recovery shows increasing effectiveness especially downstream the production chains, i.e., in the waste management sector. Therefore, this critical discussion will help assessing the industrial potential of biotechnology for urban mining of municipal, post-combustion waste.
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Affiliation(s)
- Valerio Funari
- Institute of Marine Sciences (ISMAR-CNR), Department of Earth System Sciences and Environmental Technologies, National Research Council of Italy (CNR), Bologna Research Area, 40129, Bologna, Italy.
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn (SZN), Via Ammiraglio F. Acton 55, 80133, Napoli, Italy.
| | - Simone Toller
- Institute of Marine Sciences (ISMAR-CNR), Department of Earth System Sciences and Environmental Technologies, National Research Council of Italy (CNR), Bologna Research Area, 40129, Bologna, Italy
- Department of Chemical, Life and Environmental Sustainability Sciences (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma, Italy
| | - Laura Vitale
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn (SZN), Via Ammiraglio F. Acton 55, 80133, Napoli, Italy
| | - Rafael M Santos
- School of Engineering, University of Guelph, Thornbrough Building, 50 Stone Rd E, Guelph, Ontario, N1G 2W1, Canada
| | - Helena I Gomes
- Food, Water, Waste Research Group, Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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3
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MSWI Fly Ash Multiple Washing: Kinetics of Dissolution in Water, as Function of Time, Temperature and Dilution. MINERALS 2022. [DOI: 10.3390/min12060742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Municipal solid waste incineration fly ash (FA) can represent a sustainable supply of supplementary material to the construction industries if it is pre-treated to remove hazardous substances such as chloride, sulfate, and heavy metals. In this paper, the phenomenology associated with a water washing multi-cycle treatment of FA is investigated, focusing attention upon the mineral dissolution process. The efficacy of the treatment is assessed by leaching tests, according to the European Standard, and discussed in light of the occurring mineral phases. The water-to-solid (L/S) ratio is a crucial parameter, along with the number of washing cycles, for removing halite and sylvite, whereas quartz, calcite, anhydrite, and an amorphous phase remain in the solid residue. The sequential extraction method and dissolution kinetics modelling provide further elements to interpret leaching processes, and suggest that dissolution takes place through a two-step mechanism. Altogether, multi-step washing with L/S = 5 is effective in reducing contaminants under the legal limits for non-hazardous waste disposal, while the legal limits for non-reactive or reusable material cannot be completely reached, owing to sulfate and some heavy metals which still leached out from the residue.
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Kitamura H, Ueshima M, Back S, Sutthasil N, Sakanakura H, Ishigaki T, Yamada M. Impact of diatomite addition on lead immobilization in air pollution control residues from a municipal solid waste incinerator. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:21232-21243. [PMID: 34751883 PMCID: PMC8930887 DOI: 10.1007/s11356-021-17349-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
Air pollution control (APC) residues, which are known to be the byproducts of incineration treatment, exhibit a high leaching potential of toxic metals. Calcium silicate hydrate (C-S-H), which is a major hydration product of hardened cement and immobilizes toxic metal, can be formed by the reaction of Ca with pozzolanic Si in a highly alkaline environment. Toxic metals might be immobilized by the addition of pozzolanic material to APC residues (instead of using cement), which is a Ca source and provides an alkaline condition. In this study, diatomite, which mainly comprises amorphous silica (SiO2·nH2O), was investigated as a pozzolanic material for Pb immobilization in APC residues obtained from a municipal solid waste incinerator. APC residues were cured with and without the addition of diatomite at different temperatures. When diatomite was added to APC residues, pozzolanic phases such as C-S-H gel were formed via the consumption of Ca(OH)2 and CaClOH. Compared to APC residues cured without diatomite, the leaching of Pb decreased by 99% for APC residues cured for 14 days with 10% diatomite at 70 °C. The results of sequential chemical extraction showed that water-soluble Pb in APC residues was reduced from 10.3% to nearly zero by the pozzolanic reaction. Consequently, the leaching amount of Pb dropped below 0.3 mg/L (Japanese criteria for landfill disposal). Overall, these experiments provide promising results regarding the possibility of using diatomite for pretreating APC residues.
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Affiliation(s)
- Hiroki Kitamura
- Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan.
| | - Masato Ueshima
- R&D Center, Yoshino Gypsum Co., LTD, 2-1-1 Kohoku, Adachi-ku, Tokyo, 123-0872, Japan
| | - Seungki Back
- Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Noppharit Sutthasil
- Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Hirofumi Sakanakura
- Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Tomonori Ishigaki
- Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Masato Yamada
- Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
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Sato J, Shiota K, Takaoka M. Stabilization of lead with amorphous solids synthesized from aluminosilicate gel. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121109. [PMID: 31859168 DOI: 10.1016/j.jhazmat.2019.121109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 08/26/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Lead is a hazardous heavy metal that can be stabilized by incorporation into the matrix of aluminosilicate bearing phases as they solidify. The actual mechanism by which lead is stabilized, however, continues to be unclear because the individual mechanisms of Pb incorporation into crystalline and amorphous aluminosilicate phases have not yet been studied separately. A detailed investigation of the incorporation of Pb into the amorphous phase of aluminosilicate solids was therefore performed. Amorphous aluminosilicate solids were synthesized with 0.7, 1.5, and 3.7 wt.% of Pb from aluminosilicate gel produced from chemical reagents. Based on Raman spectroscopy, the SiO stretching vibration bond shifted to lower wavenumbers with increasing Pb concentration. This shift suggested that covalent bonding between Pb and O in the matrix of the aluminosilicate solids increased. In addition, sequential extraction revealed that most of the Pb (75-90%) in the aluminosilicate solids was in a poorly soluble form (i.e., reducible, oxidizable, and residual fractions). These findings indicate that most of Pb is bonded covalently to the amorphous phase in aluminosilicate solids.
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Affiliation(s)
- Junya Sato
- Radioactive Waste Processing and Disposal Research Department, Japan Atomic Energy Agency, Muramatsu 4-33, Tokai-mura, Naka-gun, Ibaraki, 319-1194, Japan; Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto, 615-8540, Japan.
| | - Kenji Shiota
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto, 615-8540, Japan
| | - Masaki Takaoka
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto, 615-8540, Japan
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6
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Abramov S, He J, Wimmer D, Lemloh ML, Muehe EM, Gann B, Roehm E, Kirchhof R, Babechuk MG, Schoenberg R, Thorwarth H, Helle T, Kappler A. Heavy metal mobility and valuable contents of processed municipal solid waste incineration residues from Southwestern Germany. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 79:735-743. [PMID: 30343806 DOI: 10.1016/j.wasman.2018.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 07/12/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
As conventional end-of-life disposal, municipal solid waste (MSW) incineration residues can be problematic due to potential release of toxic compounds into the environment. Using municipal solid waste incineration residues as urban-mine of valuable metals (e.g. precious metals) could provide a trash-to-treasure possibility. The objectives of the study are to (i) determine the contents of different contaminant metallic elements (Zn, Cu, Ba, Pb, Cr and Ni) in four size fractions of MSW incineration residues and discuss their mobility potential by using the modified BCR sequential extraction method; (ii) investigate the level of valuable critical contents (precious metals, rare earth elements, etc.) in these wastes. We also characterized mineralogy and elemental composition of four different grain size fractions (0-0.5, 0.5-2.0, 2.0-4.0 and 4.0-16.0 mm) of processed municipal solid waste incineration residue (PIR) from the Southwestern region of Germany, using X-ray fluorescence, X-ray powder diffraction and different spectroscopic techniques. Among all studied size fractions, grains smaller than 2 mm contained higher amounts of total extractable heavy metals in most cases. The most important finding of the study is that the total contents of Cu, Au and Pt in the incineration residues reached economically profitable levels (5.1 g/kg, 21.69 mg/kg and 17.45 mg/kg, respectively).
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Affiliation(s)
- Sergey Abramov
- Microbiology Department, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119991 Moscow, Russia; Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany
| | - Jing He
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany; School of Environmental Studies, China University of Geosciences, Lumo Road 388, Wuhan, China.
| | - Dominik Wimmer
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany
| | - Marie-Louise Lemloh
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany
| | - E Marie Muehe
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany; Earth System Science, Stanford University, 397 Panama Mall Mitchell Building 101 CA 94305-2210 Stanford, USA
| | - Benjamin Gann
- Novis GmbH, Vor dem Kreuzberg 17, 72070 Tuebingen, Germany
| | - Ellen Roehm
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany
| | - Rainer Kirchhof
- University of Applied Forest Sciences Rottenburg, Schadenweilerhof 1, 72108 Rottenburg am Neckar, Germany
| | - Michael G Babechuk
- Isotope Geochemistry, Department of Geosciences, University of Tuebingen, Wilhelmstr. 56, 72074 Tuebingen, Germany; Department of Earth Sciences, Memorial University of Newfoundland, Alexander Murray Building, St. John's A1B 3X5, Canada
| | - Ronny Schoenberg
- Isotope Geochemistry, Department of Geosciences, University of Tuebingen, Wilhelmstr. 56, 72074 Tuebingen, Germany
| | - Harald Thorwarth
- University of Applied Forest Sciences Rottenburg, Schadenweilerhof 1, 72108 Rottenburg am Neckar, Germany
| | - Thomas Helle
- Novis GmbH, Vor dem Kreuzberg 17, 72070 Tuebingen, Germany
| | - Andreas Kappler
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, Sigwartstr. 10, 72076 Tuebingen, Germany
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7
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Shiota K, Nakamura T, Takaoka M, Aminuddin SF, Oshita K, Fujimori T. Stabilization of lead in an alkali-activated municipal solid waste incineration fly ash-Pyrophyllite-based system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 201:327-334. [PMID: 28688320 DOI: 10.1016/j.jenvman.2017.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 06/13/2017] [Accepted: 07/01/2017] [Indexed: 06/07/2023]
Abstract
This work focuses on the stabilization and speciation of lead (Pb) in a composite solid produced from an alkali-activated municipal solid waste incineration fly ash (MSWIFA)-pyophyllite-based system. The solid product was synthesized after mixtures of raw materials (dehydrated pyrophyllite, MSWIFA, 14 mol/L aqueous sodium hydroxide, and sodium silicate solution) were cured at 105 °C for 24 h. The product could reduce the leaching of Pb and the Pb concentration in the leachate was 7.0 × 10-3 using the Japanese leaching test and 9.7 × 10-4 mg/L using toxicity characteristics leaching procedure method, which satisfied the respective test criteria and successfully stabilized Pb in this system. The solid product had a compressive strength of 2 MPa and consisted mainly of crystalline phases. Scanning electron microscopy with X-ray analysis and X-ray absorption fine structure suggested that Pb was present along with Al, Si, and O, and that the atomic environment around the Pb was similar to that of PbSiO3. These results suggest that the alkali-activated MSWIFA-pyrophyllite-based system could be used to stabilize Pb in MSWIFA.
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Affiliation(s)
- Kenji Shiota
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan.
| | - Takafumi Nakamura
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan
| | - Masaki Takaoka
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan; Graduate School of Global Environmental Studies, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan
| | - Siti Fatimah Aminuddin
- Graduate School of Global Environmental Studies, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan
| | - Kazuyuki Oshita
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan; Graduate School of Global Environmental Studies, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan
| | - Takashi Fujimori
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan; Graduate School of Global Environmental Studies, Kyoto University, Cluster C, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan
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8
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Fujimori T, Itai T, Goto A, Asante KA, Otsuka M, Takahashi S, Tanabe S. Interplay of metals and bromine with dioxin-related compounds concentrated in e-waste open burning soil from Agbogbloshie in Accra, Ghana. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 209:155-63. [PMID: 26686056 DOI: 10.1016/j.envpol.2015.11.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 11/12/2015] [Accepted: 11/19/2015] [Indexed: 05/25/2023]
Abstract
Open burning of electronic waste (e-waste) releases various metals and organohalogen compounds in the environment. Here we investigated the interplay of metals (Cu, Pb, Zn, Fe, Co, and Sr) and bromine (Br) in the formation of dioxin-related compounds (DRCs), including polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs), as well as non-regulated DRCs such as polybrominated dibenzo-p-dioxins/furans (PBDD/Fs) and their monobrominated PCDD/Fs in soils sampled from open burning e-waste sites at Agbogbloshie in Accra, Ghana. The predominant DRCs were PBDFs, PCDFs, PCDDs, and DL-PCBs. Statistical analyzes, X-ray absorption spectroscopy, and the PCDF/PCDD ratio suggested possible formation paths of PCDD/Fs and DL-PCBs by catalytic behaviors of copper chlorides (CuCl, CuCl2, and Cu2(OH)3Cl) and thermal breakdown of polyvinyl chloride. Predominant formation of brominated furans may be derived from electron transfer from intermediates of PBDE to copper, Cu(II) → Cu(I). Lead chloride also contributed to generate DRCs and may become highly bioaccessible through the open burning of e-waste. The main zinc species (ZnCl2 and ZnS) suggested a possible relationship to generate DRCs and specific zinc source such as tire burning. Cu, Pb, Zn, and Br contained in various e-wastes, wires/cables, plastics, and tires strongly influenced generation of many DRCs.
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Affiliation(s)
- Takashi Fujimori
- Department of Global Ecology, Graduate School of Global Environmental Studies, Kyoto University, Katsura, Nisikyo-ku, Kyoto, 615-8540, Japan; Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto, 615-8540, Japan
| | - Takaaki Itai
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan.
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
| | - Kwadwo A Asante
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan; CSIR Water Research Institute, PO Box AH 38, Achimota, Accra, Ghana
| | - Masanari Otsuka
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan; Ehime Prefectural Institute of Public Health and Environmental Science, 8-234 Sanban-cho, Matsuyama 790-0003, Japan
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan; Department of Environmental Conservation, Ehime University, Matsuyama 790-8577, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
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FUNATSUKI A, TAKAOKA M, SHIOTA K, KOKUBU D, SUZUKI Y. Forensic Identification of Automobile Window Glass Manufacturers in Japan Based on the Refractive Index, X-ray Fluorescence, and X-ray Absorption Fine Structure. ANAL SCI 2016; 32:207-13. [DOI: 10.2116/analsci.32.207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Masaki TAKAOKA
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University
- Department of Global Ecology, Graduate School of Global Environmental Studies, Kyoto University
| | - Kenji SHIOTA
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University
| | - Daisuke KOKUBU
- Forensic Science Laboratory, Mie Prefectural Police H. Q
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11
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Funatsuki A, Shiota K, Takaoka M, Tamenori Y. Forensic analysis of tire rubbers based on their sulfur chemical states. Forensic Sci Int 2015; 250:53-6. [DOI: 10.1016/j.forsciint.2015.02.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/24/2015] [Accepted: 02/26/2015] [Indexed: 10/23/2022]
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12
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Shu Z, Axe L, Jahan K, Ramanujachary KV. Metal leaching from the bridge paint waste in the presence of steel grit. CHEMOSPHERE 2015; 119:1105-1112. [PMID: 25460749 DOI: 10.1016/j.chemosphere.2014.09.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 09/18/2014] [Accepted: 09/21/2014] [Indexed: 06/04/2023]
Abstract
The disposal of paint waste from bridge rehabilitation is a significant issue because of the potential release of contaminants and the consequent impact to human health and the environment. In this study, leaching behavior of paint waste was evaluated for 24 bridges in New York State. Although elevated Pb (5-168,090 mg kg(-1)) and other metal concentrations were observed in the paint samples, leaching experiments that included the toxicity characteristic leaching procedure (TCLP) and the multiple extraction procedure (MEP) revealed toxicity characteristic (TC) limits were not exceeded. The relatively low concentrations observed are attributed to the use of iron-based abrasives (steel grit) in the paint removal process. In this research, trace metals are hypothesized to be sequestered through interactions with iron oxide coatings formed on the steel grit surface resulting in reduced leachable concentrations. Through sequential extraction iron oxides were observed at 11.03% by wt and X-ray diffraction (XRD) further corroborated the presence of iron oxide coatings on the steel grit surface. Sequential extraction demonstrated that less than 6.8% of Pb, Cr, and Ba were associated with the exchangeable and carbonate forms, while greater contributions were found with iron oxides. The largest fraction, however, greater than 80%, was associated with the residual phase comprised of minerals in the paint including SiO2 and TiO2.
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Affiliation(s)
- Zhan Shu
- Department of Civil and Environmental Engineering, Newark College of Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
| | - Lisa Axe
- Department of Civil and Environmental Engineering, Newark College of Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Kauser Jahan
- Department of Civil and Environmental Engineering, Rowan University, Glassboro, NJ 08028, USA
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13
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Lassesson H, Fedje KK, Steenari BM. Leaching for recovery of copper from municipal solid waste incineration fly ash: influence of ash properties and metal speciation. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2014; 32:755-762. [PMID: 25106538 DOI: 10.1177/0734242x14542147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Recovery of metals occurring in significant amounts in municipal solid waste incineration fly ash, such as copper, could offer several advantages: a decreased amount of potentially mobile metal compounds going to landfill, saving of natural resources and a monetary value. A combination of leaching and solvent extraction may constitute a feasible recovery path for metals from municipal solid waste incineration fly ash. However, it has been shown that the initial dissolution and leaching is a limiting step in such a recovery process. The work described in this article was focused on elucidating physical and chemical differences between two ash samples with the aim of explaining the differences in copper release from these samples in two leaching methods. The results showed that the chemical speciation is an important factor affecting the release of copper. The occurrence of copper as phosphate or silicate will hinder leaching, while sulphate and chloride will facilitate leaching.
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Affiliation(s)
- Henric Lassesson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Karin Karlfeldt Fedje
- Recycling and Waste Management, Gothenburg, Sweden Department of Civil and Environmental Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Britt-Marie Steenari
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
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Funatsuki A, Takaoka M, Shiota K, Kokubu D, Suzuki Y. Forensic Identification of Automobile Window Glass Manufacturers Based on Cerium Chemical States. CHEM LETT 2014. [DOI: 10.1246/cl.130950] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Masaki Takaoka
- Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University
| | - Kenji Shiota
- Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University
| | - Daisuke Kokubu
- Forensic Science Laboratory, Mie Prefectural Police H. Q
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Fujimori T, Tanino Y, Takaoka M. Thermochemical behavior of lead adjusting formation of chlorinated aromatics in MSW fly ash. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:2169-2176. [PMID: 23363298 DOI: 10.1021/es303663r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we examined the thermochemical role of Pb in the formation of chlorinated aromatics (aromatic-Cls) in MSW fly ash at 300-400 °C, a key temperature window for maximum yield. In the presence of lead oxide alone, aromatic-Cls formation was suppressed. One of the mechanisms of suppression was partial chlorination of PbO by an inorganic chlorine source in the solid phase, based on in situ Pb L3-edge X-ray absorption near-edge structure (XANES) data. In contrast, quantitative GC/MS measurements revealed that PbCl2 promoted aromatic-Cls formation to an extent that depends on the Pb concentration, the heating temperature, and the presence of other metal catalysts. We identified two mechanisms of aromatic-Cls formation triggered by PbCl2 in MSW fly ash. First, promotion can occur by the thermochemical partial oxidation of PbCl2. More specifically, real complex solid phase increases the thermochemical oxidation reactivity of PbCl2, based on in situ Pb L3-edge XANES data. Second, Cl K-edge X-ray absorption spectroscopy revealed a coexistent effect of PbCl2 with other metal catalysts such as CuCl2 and FeCl3. The presence of PbCl2 influences the balance of the bonding state of chlorine with Cu and Fe atoms at various temperatures. Thus, Pb in real MSW fly ash functions as an "adjuster" in the generation of aromatic-Cls, the nature of which depends on the lead oxide/chloride ratio and the presence of other metal catalysts.
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Affiliation(s)
- Takashi Fujimori
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University , Katsura, Nisikyo-ku, 615-8540 Kyoto, Japan
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Struis RPWJ, Pasquali M, Borgese L, Gianoncelli A, Gelfi M, Colombi P, Thiaudière D, Depero LE, Rizzo G, Bontempi E. Inertisation of heavy metals in municipal solid waste incineration fly ash by means of colloidal silica – a synchrotron X-ray diffraction and absorption study. RSC Adv 2013. [DOI: 10.1039/c3ra41792a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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