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Zhao S, Liu M, Meng X, Liu A, Duo L. Waste rubber - Black pollution reframed as a global issue: Ecological challenges and sustainability initiatives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124291. [PMID: 38823550 DOI: 10.1016/j.envpol.2024.124291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/07/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
In contrast to "white pollution" originating from waste plastics, waste rubber is often referred to as "black pollution." The quantity and variety of waste rubber are increasing at an alarming rate, with a considerable fraction entering the global ecosystem via various pathways. This study presents the first critical review of waste rubber research with a focus on the risks associated with toxicant discharge and existing problems in waste rubber disposal, management, and recycling practices. We aim to obtain a comprehensive understanding of current research, particularly regarding the ecological impacts of these wastes, highlight major gaps, and propose the most significant research directions. A total of 192 studies published in journals were critically analysed. The importance of conducting long-term and large-scale experiments and developing efficient waste rubber recycling systems is also emphasised. This study highlights the need to address the challenges posed by waste rubber pollution and offers insights and references for undertaking ecological risk assessments and understanding the mechanisms underlying toxicant behaviour. Suggestions and countermeasures are proposed with ecosystem sustainability as the ultimate goal. Further long-term, comprehensive, and systematic research in this area is required.
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Affiliation(s)
- Shulan Zhao
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China
| | - Menghan Liu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China
| | - Xiuying Meng
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China
| | - Anran Liu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China
| | - Li'an Duo
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China.
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Yatoo AM, Hamid B, Sheikh TA, Ali S, Bhat SA, Ramola S, Ali MN, Baba ZA, Kumar S. Global perspective of municipal solid waste and landfill leachate: generation, composition, eco-toxicity, and sustainable management strategies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:23363-23392. [PMID: 38443532 DOI: 10.1007/s11356-024-32669-4] [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: 05/25/2023] [Accepted: 02/23/2024] [Indexed: 03/07/2024]
Abstract
Globally, more than 2 billion tonnes of municipal solid waste (MSW) are generated each year, with that amount anticipated to reach around 3.5 billion tonnes by 2050. On a worldwide scale, food and green waste contribute the major proportion of MSW, which accounts for 44% of global waste, followed by recycling waste (38%), which includes plastic, glass, cardboard, and paper, and 18% of other materials. Population growth, urbanization, and industrial expansion are the principal drivers of the ever-increasing production of MSW across the world. Among the different practices employed for the management of waste, landfill disposal has been the most popular and easiest method across the world. Waste management practices differ significantly depending on the income level. In high-income nations, only 2% of waste is dumped, whereas in low-income nations, approximately 93% of waste is burned or dumped. However, the unscientific disposal of waste in landfills causes the generation of gases, heat, and leachate and results in a variety of ecotoxicological problems, including global warming, water pollution, fire hazards, and health effects that are hazardous to both the environment and public health. Therefore, sustainable management of MSW and landfill leachate is critical, necessitating the use of more advanced techniques to lessen waste production and maximize recycling to assure environmental sustainability. The present review provides an updated overview of the global perspective of municipal waste generation, composition, landfill heat and leachate formation, and ecotoxicological effects, and also discusses integrated-waste management approaches for the sustainable management of municipal waste and landfill leachate.
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Affiliation(s)
- Ali Mohd Yatoo
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India.
- Department of Environmental Sciences, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India.
| | - Basharat Hamid
- Department of Environmental Sciences, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Tahir Ahmad Sheikh
- Faculty of Agriculture, SKUAST-Kashmir, Jammu and Kashmir, Wadura, 193201, India
| | - Shafat Ali
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Sartaj Ahmad Bhat
- River Basin Research Centre, Gifu University, 1-1 Yanagido, Gifu, Japan
- Waste Re-Processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, 440020, India
| | - Sudipta Ramola
- Zhejiang University of Technology, Hangzhou, 310014, China
| | - Md Niamat Ali
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Zahoor Ahmad Baba
- Faculty of Agriculture, SKUAST-Kashmir, Jammu and Kashmir, Wadura, 193201, India
| | - Sunil Kumar
- Waste Re-Processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, 440020, India
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Herrera-Franco G, Merchán-Sanmartín B, Caicedo-Potosí J, Bitar JB, Berrezueta E, Carrión-Mero P. A systematic review of coastal zone integrated waste management for sustainability strategies. ENVIRONMENTAL RESEARCH 2024; 245:117968. [PMID: 38151154 DOI: 10.1016/j.envres.2023.117968] [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: 11/02/2023] [Revised: 12/12/2023] [Accepted: 12/15/2023] [Indexed: 12/29/2023]
Abstract
Coastal areas stand out because of their rich biodiversity and high tourist potential due to their privileged geographical position. However, one of the main problems in these areas is the generation of waste and its management, which must consider technical and sustainable criteria. This work aims to conduct a systematic review of the scientific literature on integrated solid waste management (ISWM) by considering scientific publications on the scientific basis for the proposal of sustainability strategies in the context of use and efficiency. The overall method comprises i) Search strategy, merging and processing of the databases (Scopus and Web of Science); ii) Evolution of coastal zone waste management; iii) Systematic reviews on coastal landfills and ISWM in the context of the circular economy; and iv) Quantitative synthesis in integrated waste management. The results show 282 studies focused on coastal landfills and 59 papers on ISWM with the application of circular economy criteria. Systematic reviews allowed for the definition of criteria for the selection of favorable sites, such as i) sites far from the coastline, ii) impermeable soils at their base to avoid contamination of aquifers, iii) use of remote sensing and geographic information system tools for continuous monitoring, iv) mitigation of possible contamination of ecosystems, v) planning the possibility of restoration (reforestation) and protection of the environment. In coastal zones, it is necessary to apply the ISWM approach to avoid landfill flooding and protect the marine environment, reducing rubbish and waste on beaches and oceans. Therefore, applying the circular economy in ISWM is critical to sustainability in coastal environments, with the planet's natural processes and variations due to climate change.
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Affiliation(s)
- Gricelda Herrera-Franco
- Facultad de Ciencias de la Ingeniería, Universidad Estatal Península de Santa Elena, La Libertad, 240204, Ecuador.
| | - Bethy Merchán-Sanmartín
- Geo-Recursos y Aplicaciones GIGA, Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador; Facultad de Ingeniería en Ciencias de la Tierra, Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador; Centro de Investigación y Proyectos Aplicados a las Ciencias de la Tierra (CIPAT), Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Jhon Caicedo-Potosí
- Centro de Investigación y Proyectos Aplicados a las Ciencias de la Tierra (CIPAT), Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Josué Briones Bitar
- Centro de Investigación y Proyectos Aplicados a las Ciencias de la Tierra (CIPAT), Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Edgar Berrezueta
- Spanish Geological Survey (CN IGME, CSIC), Matemático Pedrayes 25., 33005, Oviedo, Spain
| | - Paúl Carrión-Mero
- Facultad de Ingeniería en Ciencias de la Tierra, Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador; Centro de Investigación y Proyectos Aplicados a las Ciencias de la Tierra (CIPAT), Escuela Superior Politécnica del Litoral (ESPOL), P.O. Box 09-01-5863, Guayaquil, Ecuador
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Lin K, Zhao Y, Kuo JH. Data-driven models applying in household hazardous waste: Amount prediction and classification in Shanghai. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115249. [PMID: 37441948 DOI: 10.1016/j.ecoenv.2023.115249] [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: 05/04/2023] [Revised: 06/28/2023] [Accepted: 07/09/2023] [Indexed: 07/15/2023]
Abstract
Precisely predicting the amount of household hazardous waste (HHW) and classifying it intelligently is crucial for effective city management. Although data-driven models have the potential to address these problems, there have been few studies utilizing this approach for HHW prediction and classification due to the scarcity of available data. To address this, the current study employed the prophet model to forecast HHW quantities based on the Integration of Two Networks systems in Shanghai. HHW classification was performed using HVGGNet structures, which were based on VGG and transfer learning. To expedite the process of finding the optimal global learning rate, the method of cyclical learning rate was adopted, thus avoiding the need for repeated testing. Results showed that the average rate of HHW generation was 0.1 g/person/day, with the most significant waste categories being fluorescent lamps (30.6 %), paint barrels (26.1 %), medicine (26.2 %), battery (15.8 %), thermometer (0.03 %), and others (1.22 %). Recovering rare earth element (18.85 kg), Cd (3064.10 kg), Hg (15643.43 kg), Zn (14239.07 kg), Ag (11805.81 kg), Ni (4956.64 kg) and Li (1081.45 kg) from HHW can help avoid groundwater pollution, soil contamination and air pollution. HVGGNet-11 demonstrated 90.5 % precision and was deemed most suitable for HHW sorting. Furthermore, the prophet model predicted that HHW in Shanghai would increase from 794.43 t in 2020 to 2049.67 t in 2025.
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Affiliation(s)
- Kunsen Lin
- The State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Rd. (No. 2), Shanghai 200092, China.
| | - Youcai Zhao
- The State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Rd. (No. 2), Shanghai 200092, China
| | - Jia-Hong Kuo
- Department of Safety, Health, and Environmental Engineering, National United University, Miaoli 36063, Taiwan.
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Occupational Risk Assessment in Landfills: Research Outcomes from Italy. SAFETY 2023. [DOI: 10.3390/safety9010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Industrial production has brought increased wellbeing in the last years, but the amount of solid waste has undoubtedly increased. Thus, open dumpsites and landfills have been created throughout the world, with serious impacts on the environment and public health. In such a context, occupational health and safety (OHS) issues related to workers that have to deal with landfill characterization or management have not been considered sufficiently. To reduce such a research gap, in 2019 a research project started in Italy on OHS risk assessment in landfills. In fact, in such facilities, workers can be subjected to direct contact with the polluted environment and might not be completely aware of the entity and type of pollution (e.g., in open dumpsites). Starting with the analysis of INAIL data on accidents at work which occurred in Italy during the period 2008–2019, a specific risk analysis was carried out with the goal of defining risk determinants and profiles by means of K-means cluster analysis. Such an analysis allowed us to recognize the use of work equipment and the work environment as the main determinants of the accidents on the one hand, and the “driver of the excavator” as the most risky activity on the other. The achieved results take a step forward towards the characterization of occupational health and safety issues in landfills. Accordingly, the research outcomes represent a basis on which to address further research work in this field.
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