Emission factors of ultrafine particulate matter (PM&lt;0.1 μm) and particle-bound polycyclic aromatic hydrocarbons from biomass combustion for source apportionment

Samae, Hisam; Tekasakul, Surajit; Tekasakul, Perapong; Furuuchi, Masami

doi:10.1016/j.chemosphere.2020.127846

Cited by 33 publications

(17 citation statements)

References 47 publications

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“…Similarly, open biomass fires during a haze episode in northern Thailand revealed that more than 60% of the total PM is smaller than PM1.0 [7]. The size distribution of PM released from open fires depends on fuel type, moisture content, and excess air during combustion [90,91].…”

Section: Pm01 Derived From Biomass Burningmentioning

confidence: 99%

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Phairuang¹,

Piriyakarnsakul²,

Inerb³

et al. 2022

Preprint

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Nanoparticles (NP), Nanoaerosols (NA), ultrafine particles (UFP), and PM0.1 (particles with a diameter ≤ 0.1 µm or 100 nm) are interchangeably used in the field of atmospheric studies. PM0.1 are emitted from both natural and anthropogenic sources. The main emission sources of PM0.1 are combustion processes, including biomass and fossil fuel. Moreover, secondary formation via atmospheric photochemical reactions can also occur depending on meteorological conditions and the suspended pollutant species. Identifying the physical and chemical characteristics and spatial and temporal variations is vital in terms of understanding the effect of NPs on the environment, the global climate, and human health risks. This review article summarizes recent research on PM0.1 in Thailand. The review involves peer-reviewed papers from Scopus and the Web of Science databases, and includes the most recently published articles in the past ten years (2013-2022). UFPs mainly come from the combustion processes such as motor vehicles. The high mass concentration of PM0.1 that occurs during the dry season in which open fires depend on the specific region of Thailand. Particulate pollution from local and cross-border countries also needs to be considered in terms of the concentrations of ambient nanoparticles. The overall conclusions reached will likely have a beneficial long-term impact on achieving a blue sky over Thailand through the development of coherent policies and managing new air pollution challenges and sharing knowledge with a broader audience.

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Section: Pm01 Derived From Biomass Burningmentioning

confidence: 99%

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Phairuang¹,

Piriyakarnsakul²,

Inerb³

et al. 2022

Preprint

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“…A great deal of rice straw was discarded in the fields or directly burned, which is not only a huge waste of biomass resource but has also aroused serious environmental pollution. 18,19 Rice straw is composed of cellulose, hemicelluloses, lignin, as well as silica and a small quantity of other substances. 20,21 The abundant organic components make rice straw a promising precursor of porous carbons.…”

Section: Introductionmentioning

confidence: 99%

“…However, only a small part of rice straw is effectively used. A great deal of rice straw was discarded in the fields or directly burned, which is not only a huge waste of biomass resource but has also aroused serious environmental pollution. , Rice straw is composed of cellulose, hemicelluloses, lignin, as well as silica and a small quantity of other substances. , The abundant organic components make rice straw a promising precursor of porous carbons. For example, Xu and co-workers synthesized a rice-straw-derived N-doped porous carbon by hydrothermal treatment followed by calcination in the presence of KHCO 3 and tripolycyanamide.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Doped Porous Carbon Derived from Cellulose Microfibers of Rice Straw for High-Performance Electrodes of Supercapacitors

Liu

Zhang

et al. 2021

Energy Fuels

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Biomasses are promising precursors of porous carbons. However, the complexity in composition and microstructure of biomasses might result in poor quality reproducibility of biomassderived porous carbons. It is essential to develop reliable approaches to prepare biomass-derived porous carbons. In this work, a nitrogendoped porous carbon derived from cellulose microfibers of rice straw was prepared. The cellulose microfibers were first extracted from rice straw by alkali treatment. Then, a hydrochar was fabricated by hydrothermal treatment of the cellulose microfibers. Nitrogen-doped porous carbon was finally obtained by calcination under high temperature with K 2 CO 3 and CO(NH 2 ) 2 as the activating agent and nitrogen dopant, respectively. The prepared carbon material has an ultrahigh specific surface area (∼2800 m 2 /g) and a moderate nitrogen doping (1.65 atom %). Consequently, rice-straw-derived porous carbon achieves a remarkable specific capacitance (380.1 F/g at 0.5 A/g) and a good rate capability (61.8% capacitance retention at 50 A/g). In addition, the porous carbon exhibits good cycling stability. The loss of capacitance is only 4.6% after 10 000 charge−discharge cycles. This study provides a robust method for the preparation of porous carbons from lignocellulosic biomasses.

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“…A serious problem arising during combustion is the formation of ash and the emission of suspended dust along with volatile organic compounds, including terpenoids [23][24][25]. An analysis of the composition of suspended dust proved that coal atoms prevail in its elemental composition.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Pyrolytic Behaviour of Birch, Maple, and Rowan Leaves

2021

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A research study was conducted on the thermal behaviour of leaves of urban greenery (birch, maple, and rowan) and the products of their pyrolysis and extraction as assisted by microwaves. The obtained products of pyrolysis and extraction were investigated with the use of FT-IR and UV spectroscopies and XRD techniques. A contractive analysis of samples of chars, condensates, after-extraction residue, and extracts showed that the changes in structural-chemical parameters of leaves of different types of trees during pyrolysis and extraction take place in distinct ways. About 22% of material was removed from birch leaves during extraction, and more than 17% of material was extracted from maple and rowan leaves. It was determined that, during pyrolysis of after-extraction residue of leaves, many fewer PAH compounds with carbonyl groups along with alcohols and phenols are emitted than during pyrolysis of non-extracted leaves. Taking into account that pyrolysis is the first stage of combustion, a decrease in the amount of dangerous compounds in the volatile products of pyrolysis leads to a lower contribution of such compounds in combustion products. This indicates that leaves of urban greenery can be subjected to combustion after extraction, and the obtained extracts can be used as a source of phytochemicals and chemical reagents.

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Emission factors of ultrafine particulate matter (PM<0.1 μm) and particle-bound polycyclic aromatic hydrocarbons from biomass combustion for source apportionment

Cited by 33 publications

References 47 publications

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Nitrogen-Doped Porous Carbon Derived from Cellulose Microfibers of Rice Straw for High-Performance Electrodes of Supercapacitors

Analysis of the Pyrolytic Behaviour of Birch, Maple, and Rowan Leaves

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