1
|
Ali W, Chen Y, Shah MG, Buriro RS, Sun J, Liu Z, Zou H. Ferroptosis: First evidence in premature duck ovary induced by polyvinyl chloride microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:173032. [PMID: 38734099 DOI: 10.1016/j.scitotenv.2024.173032] [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: 02/06/2024] [Revised: 04/30/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Ferroptosis is frequently observed in fibrosis and diseases related to iron metabolism disorders in various mammalian organs. However, research regarding the damage mechanism of ferroptosis in the female reproductive system of avian species remains unclear. In this study, Muscovy female ducks were divided into three groups which were given purified water, 1 mg/L polyvinyl chloride microplastics (PVC-MPs) and 10 mg/L PVC-MPs for two months respectively, to investigate the ferroptosis induced by PVC-MPs caused ovarian tissue fibrosis that lead to premature ovarian failure. The results showed that the high accumulation of PVC-MPs in ovarian tissue affected the morphology and functional activity of ovarian granulosa cells (GCs) and subsequently caused the follicular development disorders and down-regulated the immunosignaling of ovarian steroidogenesis proteins 3β-hydroxysteroid dehydrogenase (3β-HSD), 17β-hydroxysteroid dehydrogenase (17β-HSD), CYP11A1 cytochrome (P450-11A1) and CYP17A1 cytochrome (P450-17A1) suggested impaired ovarian function. In addition, PVC-MPs significantly up-regulated positive expression of collagen fibers, significantly increased lipid peroxidation and malondialdehyde (MDA) level, along with encouraged overload of iron contents in the ovarian tissue were the characteristics of ferroptosis. Further, immunohistochemistry results confirmed that immunosignaling of ferroptosis related proteins Acyl-CoA synthetase (ACSL4), Cyclooxygenase 2 (COX2) and ferritin heavy chain 1 (FTH1) were significantly increased, but solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase (GPX4) were decreased by PVC-MPs in the ovarian tissue. In conclusion, our study demonstrates that PVC-MPs induced ferroptosis in the ovarian GCs, leading to follicle development disorders and ovarian tissue fibrosis, and ultimately contributing to various female reproductive disorders through regulating the proteins expression of ferroptosis.
Collapse
Affiliation(s)
- Waseem Ali
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Yan Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Muhammad Ghiasuddin Shah
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Rehana Shahnawaz Buriro
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Jian Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China.
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China.
| |
Collapse
|
2
|
Rani A, Negi S, Fan C, Lam SS, Kim H, Pan SY. Revitalizing plastic wastes employing bio-circular-green economy principles for carbon neutrality. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134394. [PMID: 38703690 DOI: 10.1016/j.jhazmat.2024.134394] [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: 02/19/2024] [Revised: 04/09/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024]
Abstract
The use of plastics has become deeply ingrained in our society, and there are no indications that its prevalence will decrease in the foreseeable future. This article provides a comprehensive overview of the global plastic waste disposal landscape, examining it through regional perspectives, various management technologies (dumping or landfilling, incineration, and reuse and recycling), and across different sectors including agriculture and food, textile, tourism, and healthcare. Notably, this study compiles the findings on life-cycle carbon footprints associated with various plastic waste management practices as documented in the literature. Employing the bio-circular-green economy model, we advocate for the adoption of streamlined and sustainable approaches to plastic management. Unique management measures are also discussed including the utilization of bioplastics combined with smart and efficient collection processes that facilitate recycling, industrial composting, or anaerobic digestion. Moreover, the integration of advanced recycling methods for conventional plastics with renewable energy, the establishment of plastic tax and credits, and the establishment of extended producer responsibility are reviewed. The success of these initiatives relies on collaboration and support from peers, industries, and consumers, ultimately contributing to informed decision-making and fostering sustainable practices in plastic waste management.
Collapse
Affiliation(s)
- Aishwarya Rani
- Department of Bioenvironmental Systems Engineering, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Suraj Negi
- Department of Bioenvironmental Systems Engineering, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Chihhao Fan
- Department of Bioenvironmental Systems Engineering, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Su Shiung Lam
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; Center for Global Health Research (CGHR), Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Hyunook Kim
- Water‑Energy Nexus Laboratory, Department of Environmental Engineering, University of Seoul, Seoul 02504, South Korea
| | - Shu-Yuan Pan
- Department of Bioenvironmental Systems Engineering, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan, ROC; Agricultural Net-Zero Carbon Technology and Management Innovation Research Center, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan, ROC.
| |
Collapse
|
3
|
Gulab H, Malik S. Polyethylene terephthalate conversion into liquid fuel by its co-pyrolysis with low- and high-density polyethylene employing scrape aluminium as catalyst. ENVIRONMENTAL TECHNOLOGY 2024; 45:3721-3735. [PMID: 37326613 DOI: 10.1080/09593330.2023.2227389] [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: 11/29/2022] [Accepted: 04/01/2023] [Indexed: 06/17/2023]
Abstract
The co-pyrolysis of polyethylene terephthalate (PET) with low-density polyethylene (LDPE) and high-density polyethylene (HDPE) was carried out in a batch steel pyrolyzer in order to convert the PET into pyrolysis oil as its pyrolysis alone resulted in wax and gases. The study also aimed to increase the aromatic content of pyrolysis oil by the interaction of degradation fragments of linear chains of LDPE and HDPE with the benzene ring of PET during the pyrolysis. The reaction conditions were optimized for a higher yield of pyrolysis oil which were found to be 500 °C pyrolysis temperature with a heating rate of 0.5 °Cs-1, 1 h reaction time and 20 g of the initial mass of polymer mixture having 20% PET, 40% LDPE and 40% HDPE. Waste aluminium particles were applied as an economical catalyst in the process. The thermal co-pyrolysis yielded 8% pyrolysis oil, 32.3 wax, 39.7 wt% gases and 20% coke while the catalytic co-pyrolysis produced 30.2% pyrolysis oil, 4.2% wax, 53.6 wt% gases and 12% coke. The fractional distillation of catalytic oil resulted in 46% gasoline range oil, 31% kerosene range oil and 23% diesel range oil. These fractions resembled the standard fuels in terms of their fuel properties as well as FT-IR spectra. The GC-MS analysis revealed that the catalytic co-pyrolysis favoured the formation of relatively short-chain hydrocarbons with olefins and isoparaffins as major components while the thermal co-pyrolysis formed long-chain paraffins. The naphthenes and aromatics were also found in higher amounts in the catalytic oil compared with the thermal oil.
Collapse
Affiliation(s)
- Hussain Gulab
- Department of Chemistry, Bacha Khan University, Charsadda, Pakistan
| | - Shahi Malik
- Department of Chemistry, Bacha Khan University, Charsadda, Pakistan
| |
Collapse
|
4
|
Mihai FC, Ulman SR, Pop V. Macro and microplastic pollution in Romania: addressing knowledge gaps and potential solutions under the circular economy framework. PeerJ 2024; 12:e17546. [PMID: 38938611 PMCID: PMC11210483 DOI: 10.7717/peerj.17546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 05/19/2024] [Indexed: 06/29/2024] Open
Abstract
Background This review reveals the role of linear economy prevalence and mismanagement practices in plastic pollution of aquatic and terrestrial environments and related knowledge gaps in Romania while outlining downstream and upstream solutions to reduce plastic pollution and adopt circular economy strategies. Thus, the major aim of this study is the investigation of the stage of scientific knowledge concerning all these demands in the Romanian context. Methodology This work integrates two main approaches: (i) a bibliometric analysis fed by Web of Science and Scopus databases to reveal the current coverage of peer-reviewed literature related to plastic waste in Romania and (ii) a subject-based review to underline the main themes related to plastic waste management, plastic pollution, and mitigating options in Romania in line with circular economy principles. Results Reducing plastic pollution requires scientific knowledge, multi-sectoral cooperation, and societal awareness. Following this, the topics of plastic waste and plastic pollution appeared to be under-investigated in the literature considering Romania as a case study and concentrated around the 2020 year, emphasizing, in this way, the trendiness of plastic waste concerns and their management in the current research landscape. Our analysis points out that: (i) Romania is facing massive plastic pollution requiring solid improvements in waste management performances; (ii) few peer-reviewed research studies are performed in Romania for both macro and microplastic concerns with unknown pollution levels in most of its geographical regions; (iii) the plastic waste management is still understudied here, while waste statistics are poorly available at local levels; (iv) the perspectives of circular economy transition are still limited, feeding the plastic pollution in the coming years. Conclusions Several knowledge gaps are identified and must be covered by future research such as (i) adjusting mismanaged plastic waste levels to regional waste management performances and determining littering rates in urban and rural areas to improve the plastic pollution modeling inputs; (ii) examining plastic pollution associated with landfill sites and waste imports; (iii) assessing the sectoral contributions to macro and microplastic pollution of aquatic environments related to municipalities, tourist destinations, agriculture, etc.; (iv) determining retention levels of plastic in river basins and role of riparian vegetation; (v) analyzing microplastics presence in all types of freshwater environments and interlinkage between macroplastic fragmentation and microplastic; (vi) assessing the plastic loads of transboundary rivers related to mismanagement practices; (vii) determining concentrations of microplastics in air, soil, and other land use ecosystems.
Collapse
Affiliation(s)
- Florin-Constantin Mihai
- CERNESIM Environmental Research Center, Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, Iași, Romania
| | - Simona-Roxana Ulman
- CERNESIM Environmental Research Center, Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, Iași, Romania
| | - Valeria Pop
- Research Institute for Sustainability and Disaster Management Based on High-Performance Computing, Faculty of Environmental Science and Engineering, Babes-Bolyai University of Cluj-Napoca, Cluj-Napoca, Romania
- Doctoral School “Environmental Science”, Babes-Bolyai University of Cluj-Napoca, Cluj-Napoca, Romania
| |
Collapse
|
5
|
Chamanee G, Sewwandi M, Wijesekara H, Vithanage M. Occurrence and abundance of microplastics and plasticizers in landfill leachate from open dumpsites in Sri Lanka. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 350:123944. [PMID: 38608854 DOI: 10.1016/j.envpol.2024.123944] [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: 07/21/2023] [Revised: 03/23/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
This is the first attempt that investigate the abundance of plasticizers in leachate sediment in the scientific literature, alongside the debut effort to explore the abundance of microplastics and plasticizers in landfill leachate and sediment in Sri Lanka. Microplastics in sizes ranging from ≥2.0-5.0, ≥1.0-2.0, and ≥ 0.5-1.0 mm were extracted from the leachate draining from ten municipal solid waste open dump sites and sediment samples covering seven districts. Microplastics were extracted by density separation (Saturated ZnCl2) followed by wet peroxide digestion and the chemical identification was conducted by Fourier Transform Infrared spectroscopy. Plasticizers were extracted to hexane and analyzed by high-performance liquid chromatography. The total mean microplastic abundance in leachate was 2.06 ± 0.62 mg/L whereas it was 363 ± 111 mg/kg for leachate sediments. The most frequently found polymer type was polyethylene (>50%), and white color was dominant. The average concentration of bisphenol A (BPA), benzophenone (BP) and diethyl-hydrogen phthalate (DHEP) in leachate was 158 ± 84.4, 0.75 ± 0.16 and 170 ± 85.8 μg/L respectively. Furthermore, BP and DHEP in leachate sediment was 100 ± 68.3 and 1034 ± 455 μg/kg respectively. As landfill leachate is directly discharged into nearby surface and groundwater bodies that serve as sources of drinking water, the study highlights the potential concerns of microplastic and plasticizer exposure to the surrounding Sri Lankan community through consumption of contaminated drinking water. Therefore, there is a timely need of develop the effective waste management and pollution control measures to minimize the possible threats to both the environment and human health.
Collapse
Affiliation(s)
- Gayathri Chamanee
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, 70140, Sri Lanka
| | - Madushika Sewwandi
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka
| | - Hasintha Wijesekara
- Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, 70140, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Institute of Agriculture, University of Western Australia, Perth, WA6009, Australia.
| |
Collapse
|
6
|
Nguyen HHT, Kim E, Imran M, Choi YH, Kwak DH, Ameen S. Microplastic contaminants detection in aquatic environment by hydrophobic cerium oxide nanoparticles. CHEMOSPHERE 2024; 357:141961. [PMID: 38615954 DOI: 10.1016/j.chemosphere.2024.141961] [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: 04/13/2023] [Revised: 03/28/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
Microplastics (MPs) poses a significant threat to ecosystems and human health, demanding immediate attention. The reported research work offers an effective and low cost method towards the detection of toxic MPs. In this study, hydrophobic cerium oxide nanoparticles (CeO2 NPs) are synthesized and applied as promising electrode material for the detection of two different types of MPs, i.e. polyethylene (PE) and polypropylene (PP). Through electrochemical analyses, such as cyclic voltammetry (CV) and linear sweep voltammetry (LSV), hydrophobic CeO2 NPs modified glassy carbon electrode (GCE) based sensor demonstrated remarkable sensitivity of ∼0.0343 AmLmg-1cm-2 and detection limit of ∼0.226 mgmL-1, with promising correlation coefficient (R2) towards the detection of PE (∼27-32 μm). Furthermore, hydrophobic CeO2 NPs modified GCE exhibited promising stability and reproducibility towards PE (∼27-32 μm), suggesting the promising potential of hydrophobic CeO2 NPs as electrode materials for an electrochemical microplastics detection.
Collapse
Affiliation(s)
- Hong-Hue Thi Nguyen
- Department of Bio-Active Material Sciences, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Eunbi Kim
- Advanced Materials and Devices Laboratory, Department of Bio-Convergence Sciences, Jeonbuk National University, Advanced Science Campus, Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Mohammad Imran
- Department of Bio-Active Material Sciences, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk, 54896, Republic of Korea; Advanced Materials and Devices Laboratory, Department of Bio-Convergence Sciences, Jeonbuk National University, Advanced Science Campus, Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Yong-Ho Choi
- Department of Bio-Convergence Science, Jeonbuk National University, Cheomdan-ro, Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Dong-Heui Kwak
- Department of Bio-Active Material Sciences, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk, 54896, Republic of Korea; Department of Bio-Convergence Science, Jeonbuk National University, Cheomdan-ro, Jeongeup, Jeonbuk, 56212, Republic of Korea.
| | - Sadia Ameen
- Advanced Materials and Devices Laboratory, Department of Bio-Convergence Sciences, Jeonbuk National University, Advanced Science Campus, Jeongeup, Jeonbuk, 56212, Republic of Korea.
| |
Collapse
|
7
|
Jaafarzadeh N, Talepour N. Microplastics as carriers of antibiotic resistance genes and pathogens in municipal solid waste (MSW) landfill leachate and soil: a review. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2024; 22:1-12. [PMID: 38887766 PMCID: PMC11180052 DOI: 10.1007/s40201-023-00879-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 09/25/2023] [Indexed: 06/20/2024]
Abstract
Landfill leachate contains antibiotic resistance genes (ARGs) and microplastics (MPs), making it an important reservoir. However, little research has been conducted on how ARGs are enriched on MPs and how the presence of MPs affects pathogens and ARGs in leachates and soil. MPs possess the capacity to establish unique bacterial populations and assimilate contaminants from their immediate surroundings, generating a potential environment conducive to the growth of disease-causing microorganisms and antibiotic resistance genes (ARGs), thereby exerting selection pressure. Through a comprehensive analysis of scientific literature, we have carried out a practical assessment of this topic. The gathering of pollutants and the formation of dense bacterial communities on microplastics create advantageous circumstances for an increased frequency of ARG transfer and evolution. Additional investigations are necessary to acquire a more profound comprehension of how pathogens and ARGs are enriched, transported, and transferred on microplastics. This research is essential for evaluating the health risks associated with human exposure to these pollutants. Graphical Abstract
Collapse
Affiliation(s)
- Neamatollah Jaafarzadeh
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nastaran Talepour
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| |
Collapse
|
8
|
Chea JD, Ruiz-Mercado GJ, Smith RL, Meyer DE, Gonzalez MA, Barrett WM. Material Flow Analysis and Occupational Exposure Assessment in Additive Manufacturing End-of-Life Material Management. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:9000-9012. [PMID: 38710661 DOI: 10.1021/acs.est.4c01562] [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: 05/08/2024]
Abstract
Additive manufacturing (AM) offers a variety of material manufacturing techniques for a wide range of applications across many industries. Most efforts at process optimization and exposure assessment for AM are centered around the manufacturing process. However, identifying the material allocation and potentially harmful exposures in end-of-life (EoL) management is equally crucial to mitigating environmental releases and occupational health impacts within the AM supply chain. This research tracks the allocation and potential releases of AM EoL materials within the US through a material flow analysis. Of the generated AM EoL materials, 58% are incinerated, 33% are landfilled, and 9% are recycled by weight. The generated data set was then used to examine the theoretical occupational hazards during AM EoL material management practices through generic exposure scenario assessment, highlighting the importance of ventilation and personal protective equipment at all stages of AM material management. This research identifies pollution sources, offering policymakers and stakeholders insights to shape pollution prevention and worker safety strategies within the US AM EoL management pathways.
Collapse
Affiliation(s)
- John D Chea
- Oak Ridge Institute for Science and Education, Hosted by Office of Research & Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - Gerardo J Ruiz-Mercado
- Office of Research & Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
- Chemical Engineering Graduate Program, Universidad del Atlántico, Puerto Colombia 080007, Colombia
| | - Raymond L Smith
- Office of Research & Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - David E Meyer
- Office of Research & Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - Michael A Gonzalez
- Office of Research & Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - William M Barrett
- Office of Research & Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| |
Collapse
|
9
|
Li Y, Chen H, Li S, Feng L, Wang Z, Wang D, Wang Q, Wang H. Corals-inspired magnetic absorbents for fast and efficient removal of microplastics in various water sources. RSC Adv 2024; 14:11908-11913. [PMID: 38623298 PMCID: PMC11017187 DOI: 10.1039/d4ra02521k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024] Open
Abstract
Microplastics (MPs) as the formidable pollutants with high toxicity and difficult degradation may threaten the aquaculture industry and human health, making it highly necessary to develop the effective removal methods. In this article, Fe3O4 nanoparticles (NPs) were initially fabricated with mesoporous structure, but showing undesirable adsorption efficiencies for the adsorption of MPs (lower than 70%). Inspired by the reefs-rebuilding corals acting as the sinks for various marine pollutants like plastic, Fe3O4 NPs were coated further with adhesive polymerized dopamine (PDA) yielding Fe3O4@PDA absorbents. Unexpectedly, it was discovered that the corals-mimicking absorbents so formed could allow for the removal of MPs with dramatically enhanced efficiencies up to 98.5%, which is over about 30% higher than those of bare Fe3O4 NPs. Herein, the PDA shells might conduct the increased adhesion to MPs, presumably through the formation of hydrogen bonding, π-π stacking, and hydrophobic interactions. A fast (within 20 min) and stable adsorption of MPs can also be expected, in addition to the PDA-improved environmental storage of Fe3O4 NPs. Subsequently, the Fe3O4@PDA adsorbents were utilized to remove MPs from different water sources with high efficiencies, including pure water, suburban streams, village rivers, lake water, inner-city moats, and aquaculture water. Such a magnet-recyclable adsorbent may provide a new way for rapid, effective, and low-cost removal of MPs pollutants from various water systems.
Collapse
Affiliation(s)
- Yunyan Li
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Huilan Chen
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Shuai Li
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Luping Feng
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Ziyi Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Di Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Qidong Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| | - Hua Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University Zhejiang 313000 P. R. China
| |
Collapse
|
10
|
Manjunathan J, Pavithra K, Nangan S, Prakash S, Saxena KK, Sharma K, Muzammil K, Verma D, Gnanapragasam JR, Ramasubburayan R, Revathi M. Polyethylene terephthalate waste derived nanomaterials (WDNMs) and its utilization in electrochemical devices. CHEMOSPHERE 2024; 353:141541. [PMID: 38423149 DOI: 10.1016/j.chemosphere.2024.141541] [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: 08/16/2023] [Revised: 01/01/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
Plastics are a vital component of our daily lives in the contemporary globalization period; they are present in all facets of modern life. Because the bulk of synthetic plastics utilized in the market are non-biodegradable by nature, the issues associated with their contamination are unavoidable in an era dominated by polymers. Polyethylene terephthalate (PET), which is extensively used in industries such as automotive, packaging, textile, food, and beverages production represents a major share of these non-biodegradable polymer productions. Given its extensive application across various sectors, PET usage results in a considerable amount of post-consumer waste, majority of which require disposal after a certain period. However, the recycling of polymeric waste materials has emerged as a prominent topic in research, driven by growing environmental consciousness. Numerous studies indicate that products derived from polymeric waste can be converted into a new polymeric resource in diverse sectors, including organic coatings and regenerative medicine. This review aims to consolidate significant scientific literatures on the recycling PET waste for electrochemical device applications. It also highlights the current challenges in scaling up these processes for industrial application.
Collapse
Affiliation(s)
- J Manjunathan
- Department of Biotechnology, Vels Institute of Science Technology and Advanced Studies, Pallavaram, Chennai, 600117, India
| | - K Pavithra
- Department of Chemistry, School of Basic Sciences, Vels Institute of Science Technology and Advanced Studies, Pallavaram, Chennai, 600 117, Tamilnadu, India
| | - Senthilkumar Nangan
- Department of Chemistry, Graphic Era Deemed to be University, Dehradun, Uttarkhand, India; Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh, 174103, India
| | - S Prakash
- Department of Basic Sciences, Institute of Fisheries Post Graduate Studies, Tamilnadu Dr. J. Jayalalithaa Fisheries University, OMR Campus, Chennai, Tamilnadu, India
| | - Kuldeep K Saxena
- Division of Research and Development, Lovely Professional University, Phagwara, Punjab, India
| | - Kuldeep Sharma
- Centre for Research Impact and Outcomes, Chitkara University, Rajpura, Punjab, India
| | - Khursheed Muzammil
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, 62561, Saudi Arabia
| | - Deepak Verma
- Department of Mechanical Engineering, Graphic Era Hill University, Dehradun, Uttarkhand, India
| | | | - R Ramasubburayan
- Centre for Marine Research and Conservation, Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, Tamilnadu, India.
| | - M Revathi
- Department of Chemistry, School of Basic Sciences, Vels Institute of Science Technology and Advanced Studies, Pallavaram, Chennai, 600 117, Tamilnadu, India.
| |
Collapse
|
11
|
Valizadeh S, Valizadeh B, Seo MW, Choi YJ, Lee J, Chen WH, Lin KYA, Park YK. Recent advances in liquid fuel production from plastic waste via pyrolysis: Emphasis on polyolefins and polystyrene. ENVIRONMENTAL RESEARCH 2024; 246:118154. [PMID: 38218520 DOI: 10.1016/j.envres.2024.118154] [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: 11/05/2023] [Revised: 12/28/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
The management of plastic waste (PW) has become an indispensable worldwide issue because of the enhanced accumulation and environmental impacts of these waste materials. Thermo-catalytic pyrolysis has been proposed as an emerging technology for the valorization of PW into value-added liquid fuels. This review provides a comprehensive investigation of the latest advances in thermo-catalytic pyrolysis of PW for liquid fuel generation, by emphasizing polyethylene, polypropylene, and polystyrene. To this end, the current strategies of PW management are summarized. The various parameters affecting the thermal pyrolysis of PW (e.g., temperature, residence time, heating rate, pyrolysis medium, and plastic type) are discussed, highlighting their significant influence on feed reactivity, product yield, and carbon number distribution of the pyrolysis process. Optimizing these parameters in the pyrolysis process can ensure highly efficient energy recovery from PW. In comparison with non-catalytic PW pyrolysis, catalytic pyrolysis of PW is considered by discussing mechanisms, reaction pathways, and the performance of various catalysts. It is established that the introduction of either acid or base catalysts shifts PW pyrolysis from the conventional free radical mechanism towards the carbonium ion mechanism, altering its kinetics and pathways. This review also provides an overview of PW pyrolysis practicality for scaling up by describing techno-economic challenges and opportunities, environmental considerations, and presenting future outlooks in this field. Overall, via investigation of the recent research findings, this paper offers valuable insights into the potential of thermo-catalytic pyrolysis as an emerging strategy for PW management and the production of liquid fuels, while also highlighting avenues for further exploration and development.
Collapse
Affiliation(s)
- Soheil Valizadeh
- School of Environmental Engineering, University of Seoul, Seoul 02504, South Korea
| | - Behzad Valizadeh
- School of Environmental Engineering, University of Seoul, Seoul 02504, South Korea
| | - Myung Won Seo
- School of Environmental Engineering, University of Seoul, Seoul 02504, South Korea
| | - Yong Jun Choi
- School of Environmental Engineering, University of Seoul, Seoul 02504, South Korea
| | - Jechan Lee
- Department of Global Smart City, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, 16419, South Korea; School of Civil, Architectural Engineering, and Landscape Architecture, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, 16419, South Korea
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City 402, Taiwan; Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul 02504, South Korea.
| |
Collapse
|
12
|
Zhang S, Li Y, Jiang L, Chen X, Zhao Y, Shi W, Xing Z. From organic fertilizer to the soils: What happens to the microplastics? A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170217. [PMID: 38307274 DOI: 10.1016/j.scitotenv.2024.170217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/24/2023] [Accepted: 01/14/2024] [Indexed: 02/04/2024]
Abstract
In recent, soil microplastic pollution arising from organic fertilizers has been of a great increasing concern. In response to this concern, this review presents a comprehensive analysis of the occurrence and evolution of microplastics in organic fertilizers, their ingress into the soil, and the subsequent impacts. Organic fertilizers are primarily derived from solid organic waste generated by anthropocentric activities including urban (daily-life, municipal wastes and sludge), agricultural (manure, straw), and industrial (like food industrial waste etc.) processes. In order to produce organic fertilizer, the organic solid wastes are generally treated by aerobic composting or anaerobic digestion. Currently, microplastics have been widely detected in the raw materials and products of organic fertilizer. During the process of converting organic solid waste materials into fertilizer, intense oxidation, hydrolysis, and microbial actions significantly alter the physical, chemical, and surface biofilm properties of the plastics. After the organic fertilizer application, the abundances of microplastics significantly increased in the soil. Additionally, the degradation of these microplastics often promotes the adsorption of organic pollutants and affects their retention time in the soil. These microplastics, covered by biofilms, also significantly alter soil ecology due to the unique properties of the biofilm. Furthermore, the biofilms also play a role in the degradation of microplastics in the soil environment. This review offers a new perspective on the soil environmental processes involving microplastics from organic fertilizer sources and highlights the challenges associated with further research on organic fertilizers and microplastics.
Collapse
Affiliation(s)
- Shengwei Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yanxia Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Linshu Jiang
- Beijing University of Agriculture, Beijing 102206, China.
| | - Xingcai Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yan Zhao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Wenzhuo Shi
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Zhijie Xing
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| |
Collapse
|
13
|
Igwegbe CA, Kozłowski M, Wąsowicz J, Pęczek E, Białowiec A. Nitrogen Removal from Landfill Leachate Using Biochar Derived from Wheat Straw. MATERIALS (BASEL, SWITZERLAND) 2024; 17:928. [PMID: 38399179 PMCID: PMC10890371 DOI: 10.3390/ma17040928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024]
Abstract
Landfill leachate (LLCH) disposal poses challenges due to high pollutant concentrations. This study investigates the use of biochar (BC) derived from wheat straw for nitrogen content reduction. Laboratory experiments evaluated BC's adsorption capacity (qm) for nitrogen removal from ammonium chloride solution (NH4Cl) and LLCH, along with testing isotherm models. The results demonstrated that BC was more efficient (95.08%) than commercial activated carbon AC (93.11%), the blank, in adsorbing nitrogen from NH4Cl. This superior performance of BC may be attributed to its higher carbon content (57.74%) observed through elemental analysis. Lower results for BC/LLCH may be due to LLCH's complex chemical matrix. The Langmuir isotherm model best described BC/NH4Cl adsorption (qm = 0.5738 mg/g). The AC/NH4Cl data also fitted into the Langmuir (R2 ˃ 0.9) with a qm of 0.9469 mg/g, and 26.667 mg/g (R2 ˂ 0.9) was obtained for BC/LLCH; the BC/LLCH also gave higher qm (R2 ˃ 0.9) using the Jovanovich model (which also follows Langmuir's assumptions). The mean energy of the adsorption values estimated for the AC/NH4Cl, BC/NH4Cl, and BC/LLCH processes were 353.55, 353.55, and 223.61 kJ/mol, respectively, suggesting that they are all chemisorption processes and ion exchange influenced their adsorption processes. The Freundlich constant (1/n) value suggests average adsorption for BC/LLCH. The BC/LLCH data followed the Harkins-Jura model (R2: 0.9992), suggesting multilayered adsorption (or mesopore filling). In conclusion, biochar derived from wheat straw shows promising potential for landfill leachate remediation, offering efficient nitrogen removal capabilities and demonstrating compatibility with various adsorption models. This research also lays the groundwork for further exploration of other biochar-based materials in addressing environmental challenges associated with landfill leachate contamination.
Collapse
Affiliation(s)
- Chinenye Adaobi Igwegbe
- Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37A Str., 51-630 Wroclaw, Poland; (C.A.I.); (J.W.); (E.P.); (A.B.)
- Department of Chemical Engineering, Nnamdi Azikiwe University, Awka 420218, Nigeria
| | - Michał Kozłowski
- Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37A Str., 51-630 Wroclaw, Poland; (C.A.I.); (J.W.); (E.P.); (A.B.)
| | - Jagoda Wąsowicz
- Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37A Str., 51-630 Wroclaw, Poland; (C.A.I.); (J.W.); (E.P.); (A.B.)
| | - Edyta Pęczek
- Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37A Str., 51-630 Wroclaw, Poland; (C.A.I.); (J.W.); (E.P.); (A.B.)
- Selena Industrial Technologies sp. z o.o., Pieszycka 3 Str., 58-200 Dzierżoniów, Poland
| | - Andrzej Białowiec
- Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37A Str., 51-630 Wroclaw, Poland; (C.A.I.); (J.W.); (E.P.); (A.B.)
| |
Collapse
|
14
|
Yim H, Valizadeh S, Rhee GH, Jae J, Ali Khan M, Jeon BH, Nam H, Park YK. Catalytic pyrolysis of harmful plastic waste to alleviate environmental impacts. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123198. [PMID: 38128713 DOI: 10.1016/j.envpol.2023.123198] [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: 10/21/2023] [Revised: 11/26/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Wax is a detrimental byproduct of plastic waste pyrolysis causing challenges upon its release into the environment owing to persistence and potential toxicity. In this study, the valorization of wax materials through conversion into BTEX (i.e., benzene, toluene, ethylbenzene, and xylene) was achieved via catalytic pyrolysis using zeolite-based catalysts. The potential of two types of waxes, spent wax (SW), derived from the pyrolysis of plastic waste, and commercial paraffin wax (PW), for BTEX generation, was investigated. Using HZSM-5, higher yields of oil (54.9 wt%) and BTEX (18.2 wt%) were produced from the pyrolysis of SW compared to PW (32.3 and 14.1 wt%, respectively). This is due to the improved accessibility of lighter hydrocarbons in SW to Brønsted and Lewis acid sites in HZSM-5 micropores, promoting cracking, isomerization, cyclization, Diels-Alder, and dehydrogenation reactions. Further, the use of HZSM-5 resulted in significantly larger yields of oil and BTEX from SW pyrolysis compared to Hbeta and HY. This phenomenon is ascribed to the well-balanced distribution of Brønsted and Lewis acid sites and the identical geometric structure of HZSM-5 micropores and BTEX molecules. The addition of Ga to HZSM-5 further led to 2.24% and 28.30% enhancements in oil and BTEX yields, respectively, by adjusting the acidity of the catalyst through the introduction of new Lewis acid sites. The regeneration of the Ga/HZSM-5 catalyst by removing deposited coke on the spent catalyst under air partially recovered catalytic activity. This study not only offers an efficient transformation of undesirable wax into valuable fuels but also provides an environmentally promising solution, mitigating pollution, contributing to carbon capture, and promoting a healthier and more sustainable environment. It also suggests future research directions, including catalyst optimization and deactivation management, feedstock variability exploration, and techno-economic analyses for sustainable wax conversion into BTEX via catalytic pyrolysis.
Collapse
Affiliation(s)
- Hyunji Yim
- School of Environmental Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Soheil Valizadeh
- School of Environmental Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Gwang Hoon Rhee
- Department of Mechanical and Information Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Jungho Jae
- School of Chemial Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Moonis Ali Khan
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Byong-Hun Jeon
- Department of Earth Resource Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Hyungseok Nam
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul 02504, Republic of Korea.
| |
Collapse
|
15
|
M Al-Enizi A, Nafady A, Alanazi NB, Abdulhameed MM, Shaikh SF. Waste polyethylene terephthalate plastic derived Zr-MOF for high performance supercapacitor applications. CHEMOSPHERE 2024; 350:141080. [PMID: 38163467 DOI: 10.1016/j.chemosphere.2023.141080] [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: 10/13/2023] [Revised: 12/17/2023] [Accepted: 12/28/2023] [Indexed: 01/03/2024]
Abstract
The chemical conversion of plastic waste into metal-organic framework (MOF) materials has emerged as a significant research field in addressing issues associated to the environment and the economy. The significant advantages of MOFs as electrode material for energy/supercapacitors arises from their extensive surface area and notable porosity. The present study involved the synthesis of Zirconium-Metal Organic Frameworks (Zr-MOF) by the solvothermal method, utilizing plastic waste in the form of Polyethylene terephthalate (PET) bottles. The morphological and structural characteristics of the Zr-MOF were inspected through several analytical techniques, including scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy analysis. The as prepared Zr-MOF demonstrated very high specific surface area of 927.567 m2 g-1 with mesoporous nature of the materials estimate by BJH method. The electrochemical characteristics of the Zr-MOF in 3-electrode system exhibited a notable specific capacitance of 822 F g-1 when subjected to a low scan rate of 2 mV S-1, while the specific capacitance estimated through galvanostatic charge-discharge exhibited an enhanced value of 890 F g-1 at a current density of 0.5 A g-1. Additionally, the working electrode composed of Zr-MOF demonstrated noteworthy capacitance retention of 92% after 5000 charge discharge cycles. This research presents novel opportunities for the utilization of waste PET bottles in fabrication of highly functional Zr-MOF, aiming to advance the development of next-generation supercapacitors and environmental remediation.
Collapse
Affiliation(s)
- Abdullah M Al-Enizi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Nouf B Alanazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Meera Moydeen Abdulhameed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Shoyebmohamad F Shaikh
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| |
Collapse
|
16
|
Lee K, Ha SM, Gurudatt NG, Heo W, Hyun KA, Kim J, Jung HI. Machine learning-powered electrochemical aptasensor for simultaneous monitoring of di(2-ethylhexyl) phthalate and bisphenol A in variable pH environments. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132775. [PMID: 37865074 DOI: 10.1016/j.jhazmat.2023.132775] [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: 07/22/2023] [Revised: 09/19/2023] [Accepted: 10/11/2023] [Indexed: 10/23/2023]
Abstract
Plastic waste is a pernicious environmental pollutant that threatens ecosystems and human health by releasing contaminants including di(2-ethylhexyl) phthalate (DEHP) and bisphenol A (BPA). Therefore, a machine-learning (ML)-powered electrochemical aptasensor was developed in this study for simultaneously detecting DEHP and BPA in river waters, particularly to minimize the electrochemical signal errors caused by varying pH levels. The aptasensor leverages a straightforward and effective surface modification strategy featuring gold nanoflowers to achieve low detection limits for DEHP and BPA (0.58 and 0.59 pg/mL, respectively), excellent specificity, and stability. The least-squares boosting (LSBoost) algorithm was introduced to reliably monitor the targets regardless of pH; it employs a layer that adjusts the number of multi-indexes and the parallel learning structure of an ensemble model to accurately predict concentrations by preventing overfitting and enhancing the learning effect. The ML-powered aptasensor successfully detected targets in 12 river sites with diverse pH values, exhibiting higher accuracy and reliability. To our knowledge, the platform proposed in this study is the first attempt to utilize ML for the simultaneous assessment of DEHP and BPA. This breakthrough allows for comprehensive investigations into the effects of contamination originating from diverse plastics by eliminating external interferent-caused influences.
Collapse
Affiliation(s)
- Kyungyeon Lee
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea; Department of Medical Engineering, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Seong Min Ha
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - N G Gurudatt
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Woong Heo
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Kyung-A Hyun
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea; Korea Electronics Technology Institute (KETI), 25 Saenari-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
| | - Jayoung Kim
- Department of Medical Engineering, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyo-Il Jung
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea; The DABOM Inc., Seoul, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| |
Collapse
|
17
|
Ma J, Wan Y, Song L, Wang L, Wang H, Li Y, Huang D. Polystyrene nanobeads exacerbate chronic colitis in mice involving in oxidative stress and hepatic lipid metabolism. Part Fibre Toxicol 2023; 20:49. [PMID: 38110964 PMCID: PMC10726634 DOI: 10.1186/s12989-023-00560-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Nanoplastics (NPs) are omnipresent in our lives as a new type of pollution with a tiny size. It can enter organisms from the environment, accumulate in the body, and be passed down the food chain. Inflammatory bowel disease (IBD) is a nonspecific intestinal inflammatory disease that is recurrent and prevalent in the population. Given that the intestinal features of colitis may affect the behavior and toxicity of NPs, it is imperative to clarify the risk and toxicity mechanisms of NPs in colitis models. METHODS AND RESULTS In this study, mice were subjected to three cycles of 5-day dextran sulfate sodium (DSS) exposures, with a break of 7 to 11 days between each cycle. After the first cycle of DSS exposure, the mice were fed gavagely with water containing 100 nm polystyrene nanobeads (PS-NPs, at concentrations of 1 mg/kg·BW, 5 mg/kg·BW and 25 mg/kg·BW, respectively) for 28 consecutive days. The results demonstrated that cyclic administration of DSS induced chronic inflammation in mice, while the standard drug "5-aminosalicylic acid (5-ASA)" treatment partially improved colitis manifestations. PS-NPs exacerbated intestinal inflammation in mice with chronic colitis by activating the MAPK signaling pathway. Furthermore, PS-NPs aggravated inflammation, oxidative stress, as well as hepatic lipid metabolism disturbance in the liver of mice with chronic colitis. CONCLUSION PS-NPs exacerbate intestinal inflammation and injury in mice with chronic colitis. This finding highlights chronically ill populations' susceptibility to environmental hazards, which urgent more research and risk assessment studies.
Collapse
Affiliation(s)
- Juan Ma
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China
| | - Yin Wan
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China
| | - Lingmin Song
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China
| | - Luchen Wang
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China
| | - Huimei Wang
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China
| | - Yingzhi Li
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China
| | - Danfei Huang
- State Key Laboratory of Food Science and Resources, International Institute of Food Innovation, China-Canada Joint Lab of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, China.
| |
Collapse
|
18
|
Kim SW, Kim YT, Tsang YF, Lee J. Sustainable ethylene production: Recovery from plastic waste via thermochemical processes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166789. [PMID: 37666332 DOI: 10.1016/j.scitotenv.2023.166789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/29/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
The concept of monomer recovery from plastic waste has recently gained broad interest in industry as a powerful strategy to reduce the environmental impacts of chemical production and plastic waste pollution. Herein, we focus on the ethylene recovery from plastic waste via thermochemical pathways, such as pyrolysis, gasification, and steam cracking of pyrolysis oil derived from plastic waste. Ethylene recovery performance of different thermochemical conversion processes is evaluated and compared with respect to plastic waste types, process types, ethylene recovery yields, and process operating conditions. Based on the analysis of available data in earlier literature, future research is recommended to further enhance the viability of the thermochemical ethylene recovery technologies. This review is expected to offer a meaningful guideline on developing efficient platforms for the value-added monomer recovery from plastic waste through thermochemical conversion routes. It is also hoped that this review serves as a preliminary step to encourage the widespread adoption of thermochemical conversion-based ethylene recovery from plastic waste by industries.
Collapse
Affiliation(s)
- Seung Won Kim
- Department of Global Smart City, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yong Tae Kim
- Chemical and Process Technology Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies and State Key Laboratory in Marine Pollution (SKLMP), The Education University of Hong Kong, Tai Po, New Territories 999077, Hong Kong.
| | - Jechan Lee
- Department of Global Smart City, Sungkyunkwan University, Suwon 16419, Republic of Korea; School of Civil, Architectural Engineering, and Landscape Architecture, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| |
Collapse
|
19
|
Pop V, Ozunu A, Petrescu DC, Stan AD, Petrescu-Mag RM. The influence of media narratives on microplastics risk perception. PeerJ 2023; 11:e16338. [PMID: 37933256 PMCID: PMC10625762 DOI: 10.7717/peerj.16338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 10/02/2023] [Indexed: 11/08/2023] Open
Abstract
Background Media are the interface between scientists and citizens, communicating and interpreting the risk message and powerfully influencing individual awareness, public debate, and, hence, people's behavior. Pollution by microplastics (MPs), a threat to public health and terrestrial and marine ecosystems, has received research, media, and public interest. However, how MPs environmental and health risks are reflected in the media and assessed in the scientific literature does not find consensus over time. To date, few studies have examined social aspects around MPs, such as, for example, factors that influence awareness and perception of the risk of MPs. In this context, the objective of this study is twofold. First, we determined if media narratives influenced Romanians' awareness of MPs, and second, we investigated if media narratives influenced Romanians' perceptions of MPs health and environmental risk. Method An online survey was conducted among 417 Romanian respondents. The questionnaire had 21 questions. The questions were related to the awareness of MPs, the perceived health risk of MPs, the perceived environmental risk of MPs, the intensity of exposure to media narratives about the MPs impact on health and the environment, and the demographics. Binary logistic regression was run to identify what media narratives influenced MPs awareness and risk perception. In recent times, mass media has shaped perceptions of health and environmental risks, driven by events like COVID-19 and global climate change. Our study relies on media narratives as its foundation. Results Binary logistic regression showed that the awareness of MPs is influenced by the media narrative "Microplastics in the sea threaten fish stocks" (p = 0.001). When the frequency of exposure to this media narrative increases, the probability of reporting awareness of MPs increases. Likewise, an increase in age represents a higher probability of reporting awareness of MPs. The perceived health risk of MPs, with the highest weighting, was related to the dependent variable "Leakage of harmful chemicals from MPs affects the soil" (p = 0.014). Conclusions Media narratives about plastic and MPs pollution have increased over time, influencing the perception of this risk. The study argues the need for accurate and balanced media reporting on MPs to prevent the spread of misinformation and ensure that people clearly understand MPs risks. Furthermore, a closer examination of people's perceptions supports the design of appropriate interventions to reduce plastic consumption, thereby decreasing the risks of MPs pollution with benefits for human health and the environment.
Collapse
Affiliation(s)
- Valeria Pop
- Research Institute for Sustainability and Disaster Management Based on High-Performance Computing, Faculty of Environmental Science and Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Alexandru Ozunu
- Research Institute for Sustainability and Disaster Management Based on High-Performance Computing, Faculty of Environmental Science and Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
- Disaster Management Training and Education Centre for Africa (DiMTEC), University of the Free State, Bloemfontein, South Africa
| | - Dacinia Crina Petrescu
- Department of Hospitality Services, Faculty of Business, Babes-Bolyai University, Cluj-Napoca, Cluj, Romania
- Department of Economy and Rural Development, Faculty of Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Adrian-Daniel Stan
- Department of International Studies and Contemporary History, Faculty of History and Philosophy, Babes-Bolyai University, Cluj-Napoca, Cluj, Romania
| | - Ruxandra Malina Petrescu-Mag
- Research Institute for Sustainability and Disaster Management Based on High-Performance Computing, Faculty of Environmental Science and Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
- Department of Economy and Rural Development, Faculty of Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
- Doctoral School “International Relations and Security Studies”, Babes-Bolyai University, Cluj-Napoca, Romania
| |
Collapse
|
20
|
Mohapatra I, Samantaray SR. Breastfeeding and Environmental Consciousness: A Narrative Review of Environmental Implications and Potential Contributions to Reduce Waste and Energy Consumption. Cureus 2023; 15:e45878. [PMID: 37885540 PMCID: PMC10599186 DOI: 10.7759/cureus.45878] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2023] [Indexed: 10/28/2023] Open
Abstract
Breastfeeding is a natural and essential process that not only confers numerous health benefits to infants and mothers but also plays an important role in environmental sustainability. This narrative review explores the environmental implications of breastfeeding in comparison to formula feeding and examines the potential contributions of breastfeeding to reduce waste, energy consumption, and carbon footprint. By exploring the existing literature and research findings, this review sheds light on how breastfeeding aligns with environmental conservation efforts and reinforces the importance of promoting breastfeeding practices for a more sustainable and environment-friendly future.
Collapse
Affiliation(s)
- Ipsita Mohapatra
- Obstetrics and Gynecology, All India Institute of Medical Sciences, Kalyani, Kalyani, IND
| | - Subha R Samantaray
- Obstetrics and Gynecology, All India Institute of Medical Sciences, Kalyani, Kalyani, IND
| |
Collapse
|
21
|
Rivas J, Fuentes A, Maria A, Bergerot B, Siaussat D, Renault D. Effects of phthalate and bisphenol plasticizers on the activity of glycolytic enzymes of the moth Spodoptera littoralis. JOURNAL OF INSECT PHYSIOLOGY 2023; 149:104533. [PMID: 37380125 DOI: 10.1016/j.jinsphys.2023.104533] [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: 03/15/2023] [Revised: 05/25/2023] [Accepted: 06/19/2023] [Indexed: 06/30/2023]
Abstract
Environmental plastic pollution has significantly increased in the recent decades, and severely impacts economies, human and biodiversity health. Plastics are made of several chemical additives, including bisphenol and phthalate plasticizers such as bisphenol A (BPA) and Di(2-ethylhexyl)phthalate (DEHP). In some animal species, both BPA and DEHP are known as endocrine disruptor compounds, and can alter physiological and metabolic homeostasis, reproduction, development and/or behavior. To date, the impacts of BPA and DEHP have mainly focused on vertebrates, and to a lesser extent, on aquatic invertebrates. Yet, the few studies which examined the effects of DEHP on terrestrial insects also revealed the impacts this pollutant can have on development, hormone titrations, and metabolic profiles. In particular, it has been hypothesized in the Egyptian cotton leafworm Spodoptera littoralis that the observed metabolic alterations could result from the energetic costs necessary for DEHP detoxification or to the dysregulation of hormonally-controlled enzymatic activities. To get additional insights into the physiological effects of bisphenol and phthalate plasticizers on the moth S. littoralis, larvae were fed with food contaminated by BPA, DEHP, or the mixture of both compounds. Then, activities of four glycolytic enzymes, hexokinase, phosphoglucose isomerase, phosphofructokinase, and pyruvate kinase were measured. BPA and/or DEHP had no effects on the activities of phosphofructokinase and pyruvate kinase. Conversely, BPA-contaminated larvae were characterized by a 1.9-fold increase in phosphoglucose isomerase activity, and BPA + DEHP-fed larvae had highly variable hexokinase activity. Overall, since no disruption of glycolytic enzyme was observed in DEHP-contaminated larvae, our work tended to demonstrate that exposure to bisphenol and DEHP increased the amount of oxidative stress experienced.
Collapse
Affiliation(s)
- Johanna Rivas
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, Biodiversité, Évolution)] - UMR 6553, F-35000 Rennes, France; Sorbonne Université, CNRS, INRAe, IRD, UPEC, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France.
| | - Annabelle Fuentes
- Sorbonne Université, CNRS, INRAe, IRD, UPEC, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - Annick Maria
- Sorbonne Université, CNRS, INRAe, IRD, UPEC, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - Benjamin Bergerot
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, Biodiversité, Évolution)] - UMR 6553, F-35000 Rennes, France
| | - David Siaussat
- Sorbonne Université, CNRS, INRAe, IRD, UPEC, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - David Renault
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, Biodiversité, Évolution)] - UMR 6553, F-35000 Rennes, France.
| |
Collapse
|
22
|
Chamanee G, Sewwandi M, Wijesekara H, Vithanage M. Global perspective on microplastics in landfill leachate; Occurrence, abundance, characteristics, and environmental impact. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 171:10-25. [PMID: 37634255 DOI: 10.1016/j.wasman.2023.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 08/29/2023]
Abstract
Plastic wastes deposited in landfills eventually break down and degrade into microplastics by physical, chemical, and biological forces. Though microplastics in leachate pose significant threats to the environment, the leachate generated from landfills has not received much attention as a possible source of environmental microplastics. A descriptive and systematic investigationof the global distribution of microplastics in landfill leachate does not exist to date. Therefore, this attempt is to provide a concise scientometric review of the studies on the presence of microplastics in landfill leachate. The present review revealed that the global trend in research on microplastics in leachate has increased exponentially after 2018 and China is the leading country. Different geographical regions have reported different microplastic abundances with the highest of 291.0 ± 91.0 items/L from a landfill in Shanghai. The use of novel sampling techniques to detect small microplastics (20-100 µm) has led to the high abundance of microplastics in landfill leachate in Shanghai. Due to its widespread usage, polyethylene is the most typically encountered polymer type in landfill leachate around the world. However, it is quite challengingto compare the results among studies due to the use of different size categories and extraction techniques. The removal of microplastics by the current leachate treatment facilities is still mostly unexplored, thus it is crucial to develop novel technologies to treat the microplastics in landfill leachate. Further investigations on the transport of microplastics in landfill leachate are urgently required to have a better understanding of potential human exposure and health implications.
Collapse
Affiliation(s)
- Gayathri Chamanee
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri Lanka
| | - Madushika Sewwandi
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Hasintha Wijesekara
- Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India; Institute of Agriculture, University of Western Australia, Perth, WA 6009, Australia.
| |
Collapse
|
23
|
Eldahshory AI, Emara K, Abd-Elhady MS, Ismail MA. Catalytic pyrolysis of waste polypropylene using low-cost natural catalysts. Sci Rep 2023; 13:11766. [PMID: 37474551 PMCID: PMC10359456 DOI: 10.1038/s41598-023-37769-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/27/2023] [Indexed: 07/22/2023] Open
Abstract
The objective of this research is to produce oil from the catalytic pyrolysis of waste polypropylene (WPP) using a low-cost natural catalyst. Three natural catalysts were examined, i.e. Kaolin, Hematite, and white sand. Different catalyst-to-plastic ratios were examined, i.e. 1:1, 1:2, 1:4, 1:6, and 1:8. The utilized catalysts were elementally analyzed using the XRF analysis and the surface area was analyzed by the BET multi-point method. The WPP thermal degradation behavior was investigated by the thermogravimetric analysis (TGA), then the generated liquid oil was analyzed using the gas chromatography-mass spectrometry (GC-MS) and the differential scanning calorimetry (DSC). Thermal cracking without a catalyst produced a yield of 70 wt% of liquid oil, and the maximum oil yield in case of using Hematite and white sand as a catalysts were 70 wt% and 68 wt%, respectively. However, the ratio of 1:2 of the Kaolin to the WPP produced the highest oil yield of 80.75 wt%, and the ratio of 1:8 of the white sand to the WPP produced the highest gas yield, i.e. 44 wt%. Using Kaolin in the catalytic pyrolysis of WPP produced oil with the lowest percentage of heavy oils, i.e. 25.98%, and the highest percentage of light oils, which is 25.37%, when compared to other catalysts such as Hematite and white sand. Kaolin has the lowest cost of oil production compared to Hematite and white sand, which is 0.28 $/kg of oil. Kaolin is an economical catalyst that improves the quality, as well as the quantity of the produced oil in comparison to Hematite, white sand and the non-catalytic case.
Collapse
Affiliation(s)
- A I Eldahshory
- Department of Mechanical Engineering, Faculty of Engineering, Beni-Suef University, Beni-Suef, Egypt.
| | - Karim Emara
- Department of Mechanical Engineering, Faculty of Engineering, Helwan University, Helwan, Egypt
| | - M S Abd-Elhady
- Department of Mechanical Engineering, Faculty of Engineering, Beni-Suef University, Beni-Suef, Egypt
- Mechatronics Department, Faculty of Engineering and Materials Science, German University in Cairo (GUC), Cairo, Egypt
| | - M A Ismail
- Department of Mechanical Engineering, Faculty of Engineering, Helwan University, Helwan, Egypt
| |
Collapse
|
24
|
Ghosh A, Kumar S, Das J. Impact of leachate and landfill gas on the ecosystem and health: Research trends and the way forward towards sustainability. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117708. [PMID: 36913859 DOI: 10.1016/j.jenvman.2023.117708] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/16/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Globally, a whopping increase in solid waste (SW) generation and the risks posed by climate change are major concerns. A wide spread practice for disposal of municipal solid waste (MSW) is landfill, which swells with population and urbanization. Waste, if treated properly, can be used to produce renewable energy. The recent global event COP 27 mainly stressed on production of renewable energy to achieve the Net Zero target. The MSW landfill is the most significant anthropogenic source of methane (CH4) emission. On one side, CH4 is a greenhouse gas (GHG), and on the other it is a main component of biogas. Wastewater that collects due to rainwater percolation in landfills creates landfill leachate. There is a need to understand global landfill management practices thoroughly for implementation of better practices and policies related to this threat. This study critically reviews recent publications on leachate and landfill gas. The review discusses leachate treatment and landfill gas emissions, focusing on the possible reduction technology of CH4 emission and its impact on the environment. Mixed leachate will benefit from the combinational therapy method because of its intricate combination. Implementation of circular material management, entrepreneurship ideas, blockchain, machine learning, LCA usage in waste management, and economic benefits from CH4 production have been emphasized. Bibliometric analysis of 908 articles from the last 37 years revealed that industrialized nations dominate this research domain, with the United States having the highest number of citations.
Collapse
Affiliation(s)
- Arpita Ghosh
- Indian Institute of Management Sirmaur, Paonta Sahib, 173 025, Himachal Pradesh, India
| | - Sunil Kumar
- College of Sciences and Engineering, University of Tasmania, Launceston Campus, Australia Private Bag 51, Hobart, TAS, 7001, Australia.
| | - Jit Das
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, 713 209, India
| |
Collapse
|
25
|
V G, Shanmugavel SP, Tyagi VK, Rajesh Banu J. Microplastics as emergent contaminants in landfill leachate: Source, potential impact and remediation technologies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 343:118240. [PMID: 37235990 DOI: 10.1016/j.jenvman.2023.118240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 05/28/2023]
Abstract
A significant amount of plastic waste is generated each year on a global scale, in which the maximum quantity of plastic waste is typically dumped in landfills in various parts of the world. Moreover, dumping plastic waste in landfills cannot address the issue of proper disposal; it simply delays the process. Exploiting waste resources entails environmental hazards because plastic wastes buried in landfills gradually break down into Microplastics (MPs) due to physical, chemical, and biological effects. The possibility of landfill leachate as a source of MPs in the environment has not received much attention. Without systematic treatment, MPs in leachate increase the risk to human health and environmental health since they contain dangerous and toxic pollutants and antibiotic resistance genes transmitted by leachate vectors. Due to their severe environmental risks, MPs are now widely recognized as emerging pollutants. Therefore, the composition of MPs in landfill leachate and the interaction of MPs with other hazardous contaminants are summarised in this review. The available potential mitigation or treatment methods of MPs in landfill leachate as of now, along with the drawbacks and challenges of the present leachate treatment for eliminating MPs, are described in this review. Since it is unclear how MPs will be removed from the current leachate facilities, it is crucial to develop innovative treatment facilities as quickly as possible. Finally, the areas that require more research to provide complete solutions to the persistent problem of plastic debris are discussed.
Collapse
Affiliation(s)
- GodvinSharmila V
- Department of Civil Engineering, Mar Ephraem College of Engineering and Technology, Marthandam, 629171, Tamil Nadu, India
| | - Surya Prakash Shanmugavel
- Department of Solid Waste Management and Health, Greater Chennai Corporation, Tamil Nadu, 600 003, India
| | - Vinay Kumar Tyagi
- Environmental Hydrology Division, National Institute of Hydrology, Roorkee, 247667, India
| | - J Rajesh Banu
- Department of Biotechnology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, 610005, India.
| |
Collapse
|