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Jiang S, Han Y, Sun B, Zeng L, Gong J. Reduced sulfur accelerates Fe(III)/Fe(II) recycling in FeS 2 surface for enhanced electro-Fenton reaction. Chemosphere 2024; 353:141588. [PMID: 38430939 DOI: 10.1016/j.chemosphere.2024.141588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
FeS2 is well-known for its role in redox reactions. However, the mechanism within heterogeneous electron-Fenton (Hetero-EF) systems remains unclear. In this study, a novel FeS2 based three-dimensional system (GF/Cu-FeS2) with self-generation of H2O2 was investigated for Hetero-EF degradation of sulfamethazine (SMZ). The results revealed that SMZ could be completely removed in 1.5 h, accompanying with the mineralization efficiency of 96% within 4 h. This system performed excellent stability, evidenced by consistently eliminated 100% of SMZ within 2 h over 4 cycles. The generated Reactive Oxygen Species (ROS) of •OH and •O2- in every degradation cycle were quantitatively measured to confirm the stability of the GF/Cu-FeS2 system. Additionally, the redox reaction mechanism on the surface of FeS2 was thoroughly analyzed in detail. The accelerated reduction of Fe(III) to Fe(II), triggered by S22- on the surface of FeS2, promoted the iron cycling, thereby quickening the Fenton process. Density Functional Theory (DFT) results illustrated the process of S22- to be oxidized to in detail. Therefore, this work provides deeper insight into the mechanistic role of S22- in FeS2 for environmental remediation.
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Affiliation(s)
- Shan Jiang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China; Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China
| | - Yunuo Han
- School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China; Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China
| | - Benjian Sun
- School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China; Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China
| | - Lingyu Zeng
- School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China; Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China
| | - Jianyu Gong
- School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China; Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, China.
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Yuan X, Sun Y, Ni D, Xie Z, Zhang Y, Miao S, Wu L, Xing X, Zuo J. A biological strategy for sulfide control in sewers: Removing sulfide by sulfur-oxidizing bacteria. J Environ Manage 2023; 348:119237. [PMID: 37832290 DOI: 10.1016/j.jenvman.2023.119237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/16/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
Sulfide produced from sewers is considered one of the dominant threats to public health and sewer lifespan due to its toxicity and corrosiveness. In this study, we developed an environmentally friendly strategy for gaseous sulfide control by enriching indigenous sulfur-oxidizing bacteria (SOB) from sewer sediment. Ceramics acted as bio-carriers for immobilizing SOB for practical use in a lab-scale sewer reactor. 16 S rRNA gene sequences revealed that the SOB consortium was successfully enriched, with Thiobacillus, Pseudomonas, and Alcaligenes occupying a dominant abundance of 64.7% in the microbial community. Metabolic pathway analysis in different acclimatization stages indicates that microorganisms could convert thiosulfate and sulfide into elemental sulfur after enrichment and immobilization. A continuous experiment in lab-scale sewer reactors confirmed an efficient result for sulfide removal with hydrogen sulfide reduction of 43.9% and 85.1% under high-sulfur load and low-sulfur load conditions, respectively. This study shed light on the promising application for sewer sulfide control by biological sulfur oxidation strategy.
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Affiliation(s)
- Xin Yuan
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Research Institute of Highway Ministry of Transport, Beijing 100088, China
| | - Yiquan Sun
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Dong Ni
- Research Institute of Highway Ministry of Transport, Beijing 100088, China
| | - Zhenwen Xie
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yanyan Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Sun Miao
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Linjun Wu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Xin Xing
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Research Institute of Highway Ministry of Transport, Beijing 100088, China.
| | - Jiane Zuo
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Tsinghua Shenzhen International Graduate School, Shenzhen 518055, China.
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Hu T, Yamaura M, Pham DM, Kasai T, Katayama A. Wide distribution of extracellular electron transfer functionality in natural proteinaceous organic materials for microbial reductive dehalogenation. J Biosci Bioeng 2023; 135:238-249. [PMID: 36646568 DOI: 10.1016/j.jbiosc.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/23/2022] [Accepted: 12/09/2022] [Indexed: 01/16/2023]
Abstract
Extracellular electron transfer materials (EETMs) in the environment, such as humic substances and biochar, are formed from the humification/heating of natural organic materials. However, the distribution of extracellular electron transfer (EET) functionality in fresh natural organic materials has not yet been explored. In the present study, we reveal the wide distribution of EET functionality in proteinaceous materials for the first time using an anaerobic pentachlorophenol dechlorinating consortium, whose activity depends on EETM. Out of 11 natural organic materials and 13 reference compounds, seven proteinaceous organic materials (albumin, beef, milk, pork, soybean, yolk, and bovine serum albumin) functioned as EETMs. Carbohydrates and lipids did not function as EETMs. Comparative spectroscopic analyses suggested that a β-sheet secondary structure was essential for proteins to function as EETMs, regardless of water solubility. A high content of reduced sulfur was potentially involved in EET functionality. Although proteinaceous materials have thus far been considered simply as nutrients, the wide distribution of EET functionality in these materials provides new insights into their impact on biogeochemical cycles. In addition, structural information on EET functionality can provide a scientific basis for the development of eco-friendly EETMs.
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Affiliation(s)
- Tingting Hu
- Graduate School of Engineering, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan
| | - Mirai Yamaura
- Graduate School of Engineering, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan
| | - Duyen Minh Pham
- Institute of Materials and Systems for Sustainability, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan
| | - Takuya Kasai
- Graduate School of Engineering, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan; Institute of Materials and Systems for Sustainability, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan
| | - Arata Katayama
- Graduate School of Engineering, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan; Institute of Materials and Systems for Sustainability, Nagoya University, Tokai National Higher Education and Research System, Chikusa, Nagoya 464-8603, Japan.
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Kokryatskaya NM, Kolpakova ES, Titova KV, Velyamidova AV. Sulfur and chlorine compounds in water bodies of the Pymvashor subarctic hydrothermal system. Environ Sci Pollut Res Int 2023; 30:27328-27339. [PMID: 36378376 DOI: 10.1007/s11356-022-24141-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
The results of the study of the behavior of redox-dependent sulfur and chlorine compounds in sediments of water bodies of the Pymvashor natural boundary (PNB) located in the Bolshezemelskaya Tundra (the Polar Cis-Ural Region, Nenets Autonomous Okrug, Russian Federation) are presented. Currently, the Pymvashor is the only known location in Continental Europe where hydrothermal springs function in the polar territories. Data on the quantitative characteristics of the geochemical parameters of bacterial sulfate reduction (reduced sulfur compounds, reactive iron forms, and organic matter) in the sediments of all studied Pymvashor water bodies have been obtained. It has been established that the revealed differences in the distribution and transformation of these parameters, in addition to the main reasons affecting the course of redox processes, were also caused by the thermal factor (warming effect of thermal waters on all ecosystems of the natural boundary). Thus, iron monosulphides dominated in the upper sediment layers of non-freezing watercourses, which distinguished them from the sediments of seasonally frozen lakes, where sulfur associated with organic matter dominated along the entire length of the sediment cores. The presence of chlorophenols (CPs) and their derivatives, including pentachlorophenol as a persistent organic pollutant, in the sediments of studied Pymvashor water bodies was established. It is shown that the chlorophenol composition is mainly induced by the occurrence of natural enzymatic and biochemical processes. The influence of microclimatic conditions of the subarctic hydrothermal system on the composition, levels, and distribution of chlorophenolic compounds in the sediments was revealed.
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Affiliation(s)
- Natalia M Kokryatskaya
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 20 Nikolsky Avenue, Arkhangelsk, 163020, Russian Federation
| | - Elena S Kolpakova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 20 Nikolsky Avenue, Arkhangelsk, 163020, Russian Federation
| | - Ksenia V Titova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 20 Nikolsky Avenue, Arkhangelsk, 163020, Russian Federation
| | - Anna V Velyamidova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 20 Nikolsky Avenue, Arkhangelsk, 163020, Russian Federation.
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