Preparation and performance characteristics of an environmentally-friendly agglomerant to improve the dry dust removal effect for filter material

Liu, Rulin; Zhou, Gang; Wang, Cunmin; Jiang, Wenjing; Wang, Xing

doi:10.1016/j.jhazmat.2020.122734

Cited by 103 publications

(15 citation statements)

References 44 publications

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“…Fiber membrane filtration [ 25 , 26 ] occurs mainly through the action of force (inertial force, electrostatic force, and van der Waals force) and the internal structure of materials (fiber diameter and fiber bulk density). Generally, when the filter membrane filters dust particles, several effects work at the same time.…”

Section: Resultsmentioning

confidence: 99%

Dual-Structure PVDF/SDS Nanofibrous Membranes for Highly Efficient Personal Protection in Mines

Zhou

Liu

et al. 2022

Membranes

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Pneumoconiosis in miners is considered a global problem. Improving the performance of individual protective materials can effectively reduce the incidence of pneumoconiosis. In this study, the blend membrane of sodium dodecyl sulfate and polyvinylidene fluoride with a dual structure was prepared using electrospinning techniques, and the morphological structure, fiber diameter, and filtration performance of the nanofiber membranes were optimized by adjusting the PVDF concentration and SDS content. The results show that the incorporation of SDS enabled the nanofiber membranes to show tree-like and beaded fibers. Compared with the original PVDF membrane, the small content of tree-like fibers and beaded fibers can improve the filtration efficiency and reduce the resistance of the fiber membrane. The prepared nanofiber membrane has excellent comprehensive filtration performance, and the quality factor is 0.042 pa−1 when the concentration of PVDF is 10 wt% and the addition of SDS is 0.1 wt%. Furthermore, after high-temperature treatment, the membrane could still maintain good filtration performance. The PVDF/SDS blend nanofiber membrane has outstanding filtration efficiency and good thermal stability and can fully meet the personal protection of miners in underground high-temperature operation environments.

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Section: Resultsmentioning

confidence: 99%

Dual-Structure PVDF/SDS Nanofibrous Membranes for Highly Efficient Personal Protection in Mines

Zhou

Liu

et al. 2022

Membranes

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“…Electric-collection technology can be applied in filtration technology to improve the efficiency of filter-particulate removal. By applying electrostatic forces, air filters can capture PM without high-density micropores, thus leading to a sharply decreased filter thickness and higher filtration removal efficiency [ 257 ]. On the basis of these previous findings, a high-efficiency rotating TENG (R-TENG) enhanced polyimide (PI) nanofiber air filter was developed for PM removal in ambient atmospheres by Gu et al [ 251 ].…”

Section: Mitigation Of Exposure To Indoor Pmmentioning

confidence: 99%

Indoor Particulate Matter in Urban Households: Sources, Pathways, Characteristics, Health Effects, and Exposure Mitigation

Zhang

Magana-Arachchi

et al. 2021

IJERPH

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Particulate matter (PM) is a complex mixture of solid particles and liquid droplets suspended in the air with varying size, shape, and chemical composition which intensifies significant concern due to severe health effects. Based on the well-established human health effects of outdoor PM, health-based standards for outdoor air have been promoted (e.g., the National Ambient Air Quality Standards formulated by the U.S.). Due to the exchange of indoor and outdoor air, the chemical composition of indoor particulate matter is related to the sources and components of outdoor PM. However, PM in the indoor environment has the potential to exceed outdoor PM levels. Indoor PM includes particles of outdoor origin that drift indoors and particles that originate from indoor activities, which include cooking, fireplaces, smoking, fuel combustion for heating, human activities, and burning incense. Indoor PM can be enriched with inorganic and organic contaminants, including toxic heavy metals and carcinogenic volatile organic compounds. As a potential health hazard, indoor exposure to PM has received increased attention in recent years because people spend most of their time indoors. In addition, as the quantity, quality, and scope of the research have expanded, it is necessary to conduct a systematic review of indoor PM. This review discusses the sources, pathways, characteristics, health effects, and exposure mitigation of indoor PM. Practical solutions and steps to reduce exposure to indoor PM are also discussed.

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“…With the development of mechanical automation technology, the intensity of dust generated by each link and the concentration of dust in the operating environment are increasing. It is a serious threat to the safety production and health of workers in mines (Tatyana et al, 2019;Ding et al, 2020;Liu et al, 2020;Zhou et al, 2019;Jing et al, 2021).…”

Section: Inlet/outlet Diameter Ratio; Cleaner Production 1 Introductionmentioning

confidence: 99%

Experiment Research on Atomization Process and Dust Reduction Performance of Swirl Pressure Nozzle

Zhou

wang

Song

et al. 2022

Preprint

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In this study, experimental studies on the atomization characteristics, droplet breakup and dust reduction performance of four X-swirl nozzles with different inlet/outlet diameter ratio() were performed. The results of the nozzle atomization characteristics shows that with increases, the atomization angle is increasing trend. The atomization range and the droplet velocity is decreasing trend. The results of the droplet breakup study of the nozzle show that with the increase of , the droplet breakup range of the spray field is gradually increasing, but the droplet breakup intensity of the spray field is gradually decreasing. At = 3.33 and 3.63, droplet breakup occurs mainly in the range of 0–4 mm in the strong turbulent region. At = 3.75, droplet breakup occurs mainly in the range of 0–2 mm in the strong turbulent region. At = 3.96, droplet breakup occurs mainly in the range of 0–1 mm in the strong turbulent region. Droplet breakup in the spray field at = 3.33 and = 3.67 was better than that at = 3.75 and = 3.96. From the dust reduction experimental results, the dust reduction efficiency increases and then decreases with the increase of . The dust reduction efficiency is highest among the four nozzles at = 3.67. Based on the dust reduction curves of four different of nozzles, it is predicted that the optimal dust reduction condition will be achieved at of 3.60, which provides a reference for the design and optimization of nozzles.

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Preparation and performance characteristics of an environmentally-friendly agglomerant to improve the dry dust removal effect for filter material

Cited by 103 publications

References 44 publications

Dual-Structure PVDF/SDS Nanofibrous Membranes for Highly Efficient Personal Protection in Mines

Dual-Structure PVDF/SDS Nanofibrous Membranes for Highly Efficient Personal Protection in Mines

Indoor Particulate Matter in Urban Households: Sources, Pathways, Characteristics, Health Effects, and Exposure Mitigation

Experiment Research on Atomization Process and Dust Reduction Performance of Swirl Pressure Nozzle

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