Spatial distribution of health risks for residents located close to solvent-consuming industrial VOC emission sources

Wang, Di; Li, Xuan; Zhang, Xinmin; Zhao, Wenxiang; Zhang, Weiqi; Wu, Shuaifeng; Shao, Xi

doi:10.1016/j.jes.2021.01.014

Cited by 18 publications

(3 citation statements)

References 46 publications

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“…The third-generation model Community Multiscale Air Quality (CMAQ) and the Comprehensive Air Quality Model with Extension were used by Wang et al to analyze the diffusion of VOCs, and it was found that the total span of the affected area of VOCs after entering the air could reach up to 16 km. 28 Liu et al found that the trajectory of air mass originated from Mongolia by using the backward trajectory analysis, which reflects the characteristics of large-scale and long-distance air transportation of VOCs. Using the potential source contribution function and concentration weighted trajectory model, Tianjin, Beijing, Hebei, and Northwest Shandong were identified as the main potential source areas of VOCs in Tianjin.…”

Section: Introductionmentioning

confidence: 99%

Generation characteristics and spreading risk of VOCs released from a biological fermentation pharmaceutical factory

Wang¹,

Song²,

Li³

et al. 2023

Environ. Sci.: Processes Impacts

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Section: Introductionmentioning

confidence: 99%

Generation characteristics and spreading risk of VOCs released from a biological fermentation pharmaceutical factory

Wang¹,

Song²,

Li³

et al. 2023

Environ. Sci.: Processes Impacts

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“…The VOCs emitted via coating processes in industrial fields should be reduced because VOCs negatively affect the environment and human health [9][10][11][12]. Toluene, xylene, and formaldehyde are typical VOC chemicals; they are vaporized in the temperature range of conventional environmental conditions and are easily diffused into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Behaviors of Bubbles Trapped in Film Coating during Spray Gun Coating and Its Influences on Coating Defects

Noguchi,

Yano,

Amagai

2023

Coatings

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In this paper, we investigated the behaviors of bubbles entrained in a film coating during spray coating. Air bubbles that remain in a film coating after diluent evaporation cause coating defects called bubbling defects, including fish-eye and crater defects. In this study, the visualization of a film coating revealed that smaller bubbles in the film shrank slowly and disappeared, while larger bubbles remained. These remaining bubbles grew during the heating process for the drying of the film coating. The shrinking phenomenon was explained using bubble dynamics based on the Young–Laplace equation of a bubble’s inner pressure and Henry’s law for bubble gas dissolution into the film coating. This shrinking model is often used in studies on microbubble dynamics. The results suggested the importance of avoiding the entrainment of large bubbles during the spraying process and enhancing the release of air bubbles from the film coating’s surface through the appropriate usage of defoaming agents.

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“…Common VOCs mainly include volatile organic compounds containing phenyl functional groups (PVOCs), aldehydes, ketones, alkane compounds, etc. These VOCs not only endanger the environment, such as causing water pollution, 1 ozone layer destruction 2 and haze formation, 3 but also pose a threat to human and animal health, causing acute or chronic poisoning of nervous, blood and immune systems 4 . PVOCs also have a high risk of carcinogenesis 5 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of carbon black‐based porous carbon adsorbents and study of toluene adsorption properties

Chen

Fan

et al. 2022

J of Chemical Tech & Biotech

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Background Carbon black, which has a low utilization rate, is a powdered carbon material produced by incomplete combustion or decomposition of hydrocarbons. Carbon black is used in rubber, coating and ink industries, the product quality will be affected due to its powder structure, and serious environmental pollution will be caused in the stacking process. However, carbon black used as the raw material for the preparation of porous carbon materials with high volatile organic compounds (VOCs) adsorption capacity, which can realize the resource utilization of carbon black and environmental protection. Results Porous carbon based adsorbents (PCBAs) were prepared by low‐temperature physical pore‐forming and high‐temperature chemical pore‐forming with waste carbon black as raw material and (NH4)2CO3 as pore‐forming agent. The high pore‐forming temperature was beneficial to the pore structure to be formed. The surface morphology of the prepared PCBAs was more wrinkled and loose, and the specific surface area, micropore ratio and graphitization degree showed a volcanic change trend with the increase of pore‐forming temperature. The micropore ratio reached the maximum (81.7%) and the graphitization degree reached the maximum (ID/IG = 1.15) at the pore‐forming temperature of 850 °C. When the pore‐forming temperature was 850 °C, the toluene saturated adsorption capacity of PCBA850 adsorbent was 298.9 mg/g. In addition, the kinetic fitting results show that the adsorption behavior of toluene molecules on the adsorbent is mainly affected by the pore diffusion. Conclusion Although increasing pore‐forming temperature did not change the surface chemical properties of PCBAs, high temperature pore‐forming could significantly increase the microporosity and surface area of PCBAs. The high microporous ratio and specific surface area can provide more active sites for toluene adsorption, thus improving the toluene adsorption performance of the porous carbon‐based adsorbent. In addition, the PCBA adsorbent prepared at 850 °C can restore the toluene adsorption performance at 120 °C, which provides a possibility for its practical application. © 2022 Society of Chemical Industry (SCI).

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Spatial distribution of health risks for residents located close to solvent-consuming industrial VOC emission sources

Cited by 18 publications

References 46 publications

Generation characteristics and spreading risk of VOCs released from a biological fermentation pharmaceutical factory

Generation characteristics and spreading risk of VOCs released from a biological fermentation pharmaceutical factory

Behaviors of Bubbles Trapped in Film Coating during Spray Gun Coating and Its Influences on Coating Defects

Preparation of carbon black‐based porous carbon adsorbents and study of toluene adsorption properties

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