Management strategy of plastic wastes in Taiwan

Lai, Ying-Ying; Lee, Yuh-Ming

doi:10.1186/s42834-022-00123-0

Cited by 18 publications

(9 citation statements)

References 13 publications

(14 reference statements)

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“…Moreover, environmental management goals can be achieved through behavioral change, and there have been some successful examples in the past. For example, Taiwan has successfully implemented a trash bag charging policy (Lai and Lee, 2022;Tsai, 2022) to achieve litter reduction.…”

Section: A C C E P T E D Mmentioning

confidence: 99%

Strategy Design of PM2.5 Controlling for Northern Thailand

Jainontee

Pongkiatkul

Wang

et al. 2023

Aerosol Air Qual. Res.

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The emission of fine particulate matter (PM2.5) in dry season from the open biomass burning has caused a long-term negative impact on residents' health in Northern Thailand. This study takes Chiang Mai and Chiang Rai provinces in Northern Thailand as the study areas to identify pollution episodes, analyze PM2.5 source trajectories, and finally propose pollution control strategies accordingly. PM2.5 levels during 2019-2021 of three representative air pollution monitoring stations (i.e., Chaing Mai-35T, Chiang Rai-57T, and Mae Sai-73T) in these two provinces were collected and analyzed. The Air Quality Index (AQI) defined by PM2.5 level higher than 91 µg m -3 causing serious adverse health effects was adopted to define periods having pollution levels, and the days of the air pollution episodes were identified. Based on these episodes, we applied the backward trajectory model to identify the sources of pollutants. Results showed that PM2.5 levels were significantly higher between February to April compared with other months during 2019-2021 at all three monitoring stations, indicating the severity of PM2.5 episode during the dry season. The backward trajectory demonstrated that air mass transported through the Northern Thailand or nearby mountain areas (categorized as long-or short-transport-distance) contributed up to 21.6% and 75.9% of the total air mass, respectively. Although residents in these mountainous areas are accustomed to the biomass burning, we suggested that there should be urgent needs for the improvement of the long-term air quality in these two provinces. Therefore, this study proposes some control strategies including improvement of prevention knowledge, increase of the risk perception, cultivation of the protection behavior, and intensification of the social influence. In addition to reducing biomass burning pollution, this improvement plan also has a co-benefit of achieving resources recycling concomitantly. Providing effective management strategies may reduce the adverse health effects to Thai residents.

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Section: A C C E P T E D Mmentioning

confidence: 99%

Strategy Design of PM2.5 Controlling for Northern Thailand

Jainontee

Pongkiatkul

Wang

et al. 2023

Aerosol Air Qual. Res.

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“…[8] By 2050, it is predicted that global manufacturing of plastic will have reached over 1.1 billion metric tons. [9] The Environmental Protection Agency estimates that only 7% of the annually produced plastic garbage is recycled. Based on the data, it was determined that only 8% of plastic is burned, with the rest being dumped in landfills.…”

Section: Introductionmentioning

confidence: 99%

“…[ 8 ] By 2050, it is predicted that global manufacturing of plastic will have reached over 1.1 billion metric tons. [ 9 ]…”

Section: Introductionmentioning

confidence: 99%

Efficient Plastic Waste Recycling Using Polymer

Nain,

Shyam,

Gupta

et al. 2024

Macromolecular Symposia

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This study explores the possible uses of polymers to facilitate the more efficient recycling of plastic waste. Recycling plastics has been singled out as one way to mitigate the damaging effects of plastic trash on the environment. However, traditional recycling methods can only go so far, therefore innovative approaches are needed. This research investigates how a variety of polymers may be able to improve recycling operations. The study simulates the recycling procedure and employs experimental analysis to compare the performance of various polymers. Results show that by selecting the right polymers, recycling plastic trash can be made much more efficient, cutting down on both waste and energy consumption. The results have important ramifications for the plastic waste recycling sector and point the way towards fruitful future study in this area.

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“…The consumption of fossil energy sources not only generates a large amount of CO 2 but also causes serious environmental pollution and climate change. Therefore, the development of green hydrogen energy has become a major area of focus to meet the demand of global new energy strategies and “pollution reduction” plans. , It was estimated that by 2050, the global plastic production will be about 1.2 billion tons and the majority of waste plastics will be sent to landfills and incineration plants, , and the waste fats and oils originated from the consumption of vegetable oils for food will be more than 50 million tons. , Gasification and reforming of these organic wastes to produce hydrogen − provide an effective route for harmless disposal of this huge amount of organic waste. Compared with using fossil fuels such as methane to produce hydrogen, utilizing waste organic matter is sustainable.…”

Section: Introductionmentioning

confidence: 99%

Salt-Supported Nickel Oxides for Boosted Hydrogen Production: The Critical Role of Halogen

Cai,

Gu,

Ding

et al. 2024

ACS Appl. Mater. Interfaces

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Hydrogen production from organic waste by gasification and reforming technologies offers major benefits to both the environment and climate. The long-term stability and regeneration of the reforming catalyst are still the biggest challenges because of carbon deposition. Here we report a recyclable salt-supported nickel oxide NiO/NaX (X: F, Cl, Br) catalyst for effective autothermal reforming of the oxygenated volatile organic compound (OVOC) ethyl acetate to hydrogen. The optimal hydrogen selectivity achieved 82.0% at 650 °C and the durability reached 43 h. Interestingly, with the decreasing of halogen electronegativity (F > Cl > Br) in NaX, the corresponding hydrogen selectivity of the catalysts decreased. Although NiO/NaX catalysts possess a very small specific surface area and a dense microstructure, their catalytic performance is better than that of normal Ni-based catalysts loaded on high-specific-surface-area supports. Detailed investigations revealed the critical roles played by halogen during the reforming reaction. First, the strong electronegative halogen in NaX induced the formation of hydrogen bonds with the reactants and reaction intermediates, which may prolong the surface residence time of such species, thus ensuring efficient hydrogen production over small-specific-surface-area catalysts under high-temperature conditions. Second, the halogen of the support NaX weakening the Ni–O bonds of the exposed Ni atoms in NiO/NaX made it easier for NiO to be reduced to Ni0, thus reducing the reaction activation energy and prompting the rapid catalytic reaction. The strength of such metal–support interaction can be easily modulated by varying the halogen electronegativity. This study provides a new prospect for the design of innovative recyclable heterogeneous catalysts with low specific surface area but high activity.

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Management strategy of plastic wastes in Taiwan

Cited by 18 publications

References 13 publications

Strategy Design of PM2.5 Controlling for Northern Thailand

Strategy Design of PM2.5 Controlling for Northern Thailand

Efficient Plastic Waste Recycling Using Polymer

Salt-Supported Nickel Oxides for Boosted Hydrogen Production: The Critical Role of Halogen

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