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Le-Khac UN, Bolton M, Boxall NJ, Wallace SMN, George Y. Living review framework for better policy design and management of hazardous waste in Australia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171556. [PMID: 38458450 DOI: 10.1016/j.scitotenv.2024.171556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/25/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
The significant increase in hazardous waste generation in Australia has led to the discussion over the incorporation of artificial intelligence into the hazardous waste management system. Recent studies explored the potential applications of artificial intelligence in various processes of managing waste. However, no study has examined the use of text mining in the hazardous waste management sector for the purpose of informing policymakers. This study developed a living review framework which applied supervised text classification and text mining techniques to extract knowledge using the domain literature data between 2022 and 2023. The framework employed statistical classification models trained using iterative training and the best model XGBoost achieved an F1 score of 0.87. Using a small set of 126 manually labelled global articles, XGBoost automatically predicted the labels of 678 Australian articles with high confidence. Then, keyword extraction and unsupervised topic modelling with Latent Dirichlet Allocation (LDA) were performed. Results indicated that there were 2 main research themes in Australian literature: (1) the key waste streams and (2) the resource recovery and recycling of waste. The implication of this framework would benefit the policymakers, researchers, and hazardous waste management organisations by serving as a real time guideline of the current key waste streams and research themes in the literature which allow robust knowledge to be applied to waste management and highlight where the gap in research remains.
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Affiliation(s)
- Uyen N Le-Khac
- Data Science and AI Department, Faculty of Information Technology, Monash University, Australia.
| | - Mitzi Bolton
- Monash Sustainable Development Institute, Monash University, Australia
| | - Naomi J Boxall
- Environment, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
| | - Stephanie M N Wallace
- Centre for Anthropogenic Pollution Impact and Management (CAPIM), School of BioSciences, University of Melbourne, Australia
| | - Yasmeen George
- Data Science and AI Department, Faculty of Information Technology, Monash University, Australia
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Deller Z, Grist S, Giustozzi F, Maniam S. Multimethod Approach to Investigate the Factors Influencing High-Temperature Fuming of Bitumen. ACS OMEGA 2024; 9:3217-3228. [PMID: 38284018 PMCID: PMC10809709 DOI: 10.1021/acsomega.3c04673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/08/2023] [Accepted: 11/23/2023] [Indexed: 01/30/2024]
Abstract
Bitumen is heated at high temperatures during asphalt paving applications. In these circumstances, there is the possibility for fuming. These fumes can vary in intensity and, if significant, may attract complaints. The bitumen's chemical composition depends on the crude oil from which it originates. A tool to screen bitumen and evaluate its potential to release fumes would be highly beneficial. In this study, three methods have been employed to investigate a series of bitumen samples that were known to produce complaints by (a) quantifying benzene, toluene, ethylbenzene, and m, o, p-xylene (BTEX), (b) measuring the partition coefficients of these analytes, and (c) measuring the volatile mass of bitumen exposed to isothermal heating. It was found that the concentration of BTEX varied significantly between bitumen samples. The partition coefficients of these analytes are substantially the same between samples. Finally, the volatile mass of each sample varies significantly between samples, independent of bitumen grade or country of origin. These volatile masses correlate strongly with fuming complaints from bitumen and can be used as predictors of bitumen fuming risk.
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Affiliation(s)
- Zachary Deller
- Applied
Chemistry and Environmental Science, School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Stephen Grist
- Applied
Chemistry and Environmental Science, School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Filippo Giustozzi
- Civil
and Infrastructure, School of Engineering, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Subashani Maniam
- Applied
Chemistry and Environmental Science, School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
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Abd Karim SB, Norman S, Koting S, Simarani K, Loo SC, Mohd Rahim FA, Ibrahim MR, Md Yusoff NI, Nagor Mohamed AH. Plastic Roads in Asia: Current Implementations and Should It Be Considered? MATERIALS (BASEL, SWITZERLAND) 2023; 16:5515. [PMID: 37629806 PMCID: PMC10455915 DOI: 10.3390/ma16165515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 08/27/2023]
Abstract
The rapid economic and industrial growth experienced in the Asian region has significantly increased waste production, particularly single-use plastic. This surge in waste poses a significant challenge for these countries' municipal solid waste management systems. Consequently, there is a pressing need for progressive and effective solutions to address the plastic waste issue. One promising initiative involves utilizing used plastic to produce components for asphalt pavement. The concept of plastic road technology has gained traction in Asia, with 32 countries displaying varying levels of interest, ranging from small-scale laboratory experiments to large-scale construction projects. However, as a relatively new technology, plastic road implementation requires continuous and comprehensive environmental and health risk assessments to ascertain its viability as a reliable green technology. This review paper presents the current findings and potential implementation of plastic-modified asphalt in Asian countries, with particular attention given to its environmental and human health impacts. While plastic asphalt roads hold promise in waste reduction, improved asphalt properties, and cost savings, it is imperative to thoroughly consider the environmental and health impacts, quality control measures, recycling limitations, and long-term performance of this road construction material. Further research and evaluation are needed to fully understand the viability and sustainability of plastic asphalt roads. This will enable a comprehensive assessment of its potential benefits and drawbacks, aiding in developing robust guidelines and standards for its implementation. By addressing these considerations, it will be possible to optimize the utilization of plastic waste in road construction and contribute to a greener and more sustainable future.
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Affiliation(s)
- Saipol Bari Abd Karim
- Department of Quantity Surveying, Faculty of Built Environment, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (S.-C.L.); (F.A.M.R.)
| | - Syuhada Norman
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (S.N.); (K.S.)
| | - Suhana Koting
- Center for Transportation Research (CTR), Department of Civil Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (M.R.I.); (A.H.N.M.)
| | - Khanom Simarani
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (S.N.); (K.S.)
| | - Siaw-Chuing Loo
- Department of Quantity Surveying, Faculty of Built Environment, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (S.-C.L.); (F.A.M.R.)
| | - Faizul Azli Mohd Rahim
- Department of Quantity Surveying, Faculty of Built Environment, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (S.-C.L.); (F.A.M.R.)
| | - Mohd Rasdan Ibrahim
- Center for Transportation Research (CTR), Department of Civil Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (M.R.I.); (A.H.N.M.)
| | - Nur Izzi Md Yusoff
- Department of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
| | - Abdul Halim Nagor Mohamed
- Center for Transportation Research (CTR), Department of Civil Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (M.R.I.); (A.H.N.M.)
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