Fast and deep disinfection for face masks recycle using vacuum ultraviolet irradiation

Ye, Shengjun; Li, Yi‐Heng; Huang, Haibao; Xü, Yao; Du, Sheng; Wan, Fenlong; Xie, Ruijie; Huang, Pingli; Liu, Biyuan; Dong, Ting; He, Zhili; Leung, Dennis Y.C.

doi:10.1016/j.jclepro.2022.133221

Cited by 10 publications

(5 citation statements)

References 40 publications

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“…In fact, previous studies have also investigated the applicability of commonly used disinfection measures for pathogenic microorganisms to mask disinfection and reuse ( Peters et al, 2021 , Seresirikachorn et al, 2021 ). Ultraviolet irradiation has the disadvantages of poor disinfection efficiency and incomplete disinfection ( Ye et al, 2022 ), which may make the reuse of the mask after disinfection have a greater risk of infection ( Fig. S3 ).…”

Section: Resultsmentioning

confidence: 99%

Production of singlet oxygen from photosensitizer erythrosine for facile inactivation of coronavirus on mask

Jiang

Guo

et al. 2023

Environment International

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Section: Resultsmentioning

confidence: 99%

Production of singlet oxygen from photosensitizer erythrosine for facile inactivation of coronavirus on mask

Jiang

Guo

et al. 2023

Environment International

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“…Several other solutions have been proposed, including biodegradable, disposable masks; mask-only trash cans; guidelines; and strict waste management. From the perspective of reuse, a possible disinfection method was investigated in [21]. This method was based on a sustainable and fast vacuum ultraviolet (VUV) treatment for the disinfection of N95 masks that had no structural damage and functional decline and were up to the reuse standard.…”

Section: Introductionmentioning

confidence: 99%

Applicability of Face Masks as Recyclable Raw Materials for Self-Made Insulation Panels

Rossi di Schio,

Ballerini,

Kašpar

et al. 2024

Energies

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The circular economy model is based on the 4R framework—reduce, reuse, recycle, and recover. While recycling was the primary focus in the past, the shortage of raw materials and the desire to reduce carbon footprints have led to a change in focus: end-of-life materials are now considered resources rather than waste. When discharged, end-of-life materials still possess properties that can be exploited. For this reason, a comprehensive characterization of reusable materials is mandatory to reduce waste and increase material availability. The reuse of waste materials, such as surgical masks, is of particular interest in giving people in disadvantaged contexts the opportunity to self-produce and self-install panels within their homes, with the dual result of improving indoor comfort and increasing human capital. This paper focuses on the identification of a possible second application for surgical face masks through experimental characterization. Panels made of masks were tested for water vapor permeability, thermal conductivity, and fire resistance and their use as insulating material in the building sector was discussed. Based on the results, surgical face masks are suitable as thermal insulating materials, do not pose safety concerns, and can reduce energy consumption and improve thermal comfort when installed indoors.

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“…UV can effectively inactivate bacteria by disrupting DNA replication [16]. Many researchers have studied the effect of UV sterilization performance, as irradiation directly affects the efficiency of bacteria sterilization [17][18][19]. UV sterilization technology can be used in air conditioning systems.…”

Section: Introductionmentioning

confidence: 99%

The Performance Analysis of a Novel Sterilizable Trombe Wall Based on the Combined Effect of Heat and UV Light

Fan,

Li,

2024

Buildings

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A Trombe wall is a widely applied heating system that has a single function. An interesting thing is that both the solar heat and UV light received by a Trombe wall have an air sterilization effect. Here, the air sterilization and thermal performances of a Trombe wall in different cities were investigated based on an established heat and mass transfer model. The main results were as follows: (1) UV dose accumulation and high temperature were the most important factors that affect the UV and thermal sterilization performance, respectively. The Trombe wall had the thermal characteristics of high accumulation of UV doses in the morning and afternoon and a high temperature level at noon, which was a good match with the UV and thermal sterilization process. (2) A typical sterilization process in a Trombe wall was divided into three areas: the UV inactivation area, UV and thermal inactivation area and UV inactivation area. (3) The weather conditions played an important role in the sterilization performance. UV sterilization was dominant in cloudy weather, and thermal sterilization was dominant in sunny weather. (4) In Nanjing, Shanghai, Xining and Guangzhou, the average daily clean air volumes in heating months were 39.4, 33.5, 32.2 and 39.8 m3/m2, respectively. (5) When the wall height increased from 1.5 m to 3.5 m, the average daily clean air volume in heating months increased from 31.7 to 43.6 m3/m2.

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Fast and deep disinfection for face masks recycle using vacuum ultraviolet irradiation

Cited by 10 publications

References 40 publications

Production of singlet oxygen from photosensitizer erythrosine for facile inactivation of coronavirus on mask

Production of singlet oxygen from photosensitizer erythrosine for facile inactivation of coronavirus on mask

Applicability of Face Masks as Recyclable Raw Materials for Self-Made Insulation Panels

The Performance Analysis of a Novel Sterilizable Trombe Wall Based on the Combined Effect of Heat and UV Light

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