Study of the evolution of aerosol emissions from coal-fired power plants due to coagulation, condensation, and gravitational settling and health impact

Nieto, P.J. Garcı́a

doi:10.1016/j.jenvman.2005.08.006

Cited by 30 publications

(14 citation statements)

References 11 publications

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“…Continuously increasing consumption of coal leads to more and more serious environmental problems, such as SO 2 and inhalable particulate matter (PM 10 ) emissions (Wang et al, 2008;Garcia-Nieto, 2006). Currently, desulfurization devices installed in large-scale power plants have high removal efficiencies for SO 2 and fly ash, but the devices become inefficient in controlling PM 2.5 (Peukert & Wadenpohl, 2001;Meij & Winkel, 2004;Yoo et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

The formation and removal characteristics of aerosols in ammonia-based wet flue gas desulfurization

Yan

Bao

Yang

et al. 2011

Journal of Aerosol Science

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Section: Introductionmentioning

confidence: 99%

The formation and removal characteristics of aerosols in ammonia-based wet flue gas desulfurization

Yan

Bao

Yang

et al. 2011

Journal of Aerosol Science

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“…Tao et al (2014) have shown that the inhalable particulate matter with diameters less than 10 mm, and especially less than 2.5 mm, may damage the respiratory system and may in particular cause cardio-cerebrovascular diseases. The coal-fired industry is an important source of fine particulate matter in the atmosphere, thus improving existing dust removal technology and reducing discharge concentrations are important steps toward controlling air pollution (Garc ıa-Nieto 2006).…”

Section: Introductionmentioning

confidence: 99%

Improvements to dust filtration through acoustic agglomeration and atomization

Zheng

Lin

et al. 2017

Aerosol Science and Technology

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Based on the theories of acoustic agglomeration and dust wet removal, an experimental apparatus was constructed to study the combined effects of acoustic agglomeration and atomization humidification in the pretreatment process to analyze the filtration performance of filter material. According to the concentration of coal-fired fly ash chosen in the experiments, the proper amount of atomization humidification and the proper sound pressure level (SPL) were determined. Under the relative humidity (RH) of 69% and with SPL in the range of 100 dB to 135 dB, the removal efficiency of fly-ash, the compressibility of the fly-ash particle layer on the filter media, and the performance of pulse filter cleaning were studied. The results indicate that the combined effects of sound fields and atomization humidification can effectively remove PM 10 and PM 2.5 , and change the interaction and movement of particles, which can improve the pore structure of the fly-ash particle layer and increase the porosity of the dust layer. The results also indicate that with the proper amount of atomization humidification and appropriate SPL, the joint acoustic-atomization pretreatment can delay the filter material blocking, which reduces the pulse filter cleaning frequency and extends the filter cleaning cycle. It can also reduce the residual resistance after filter cleaning and prolong the operating lifetime of the filter media. EDITORJing Wang

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“…Coal ash is formed from the inorganic components contained in coal, which can cause critical troubles, including slagging, fouling, bed agglomeration, corrosion, erosion, etc (Bryers, 1996). Coal-derived PM has also been known to have adverse effects on human health and the environment which has received much attention recently around the world (Garcia-Nieto, 2006;Ohlstrom et al, 2000;Buhre et al, 2005). It mainly originates from the heterogeneous nature of the mineral matter present in coal and is formed by complex physical and chemical processes, involving vaporization, condensation, melting, fragmentation, coalescence, etc (Buhre et al, 2005;Lockwood and Yousif, 2000;Senior et al, 2000;Takuwa et al, 2006;Wolski et al, 2004) .…”

Section: Introductionmentioning

confidence: 99%

Investigation on Inorganic Constituents in Indian Coal and Emission Characteristics of the Particulates (PM_2.5 and PM₁₀)

Saikia

Sarmah

Khare

et al. 2013

Energy Exploration & Exploitation

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The micro-analysis of the inorganic constituents was performed on a tertiary Indian coal sample using computer-controlled scanning electron microscopy (CCSEM). A laboratory combustion experiment of the coal was also carried out to reveal the emission characteristics of particulate matters (PM2.5 and PM10). The results show the presence of major minerals like clay minerals, quartz, pyrite, and pyrrhotite forming the bulk of the mineral matter including some minor minerals, such as calcite, dolomite, ankerite, barite, oxidised pyrrhotite, and gypsum in the sample. The particle size distribution (PSD) of the included minerals is generally observed to be finer than that of the excluded ones in the coal. As a consequence, the coals rich in included minerals have smaller particles, which may affect its reactivity. The ratio of included to excluded minerals is found to be higher in majority of cases. It is found that Si mostly occurs as quartz and clay minerals, while Al mostly occurs as silicate minerals. Fe is primarily present as iron sulfides, iron oxide, and Fe-Al-silicate. S is partitioned into iron sulfides and gypsum. Most Ca occurs as carbonates and gypsum, with a minor fraction associated with clay minerals. Mg is mainly present as dolomite and clay minerals, with a very minor fraction present as ankerite. The majority of alkali elements are associated with aluminosilicates. P is mostly associated with kaolinite and/or present as more complex compounds containing Al, Si, and other elements as apatite is found to be absent in the coal studied. Ti is mainly present as rutile and kaolinite. The PSD of the individual elements were also determined in the coal by CCSEM data and 73.81 % of sulphur was found to be present as included indicating the high organically bound sulphur in the coal. During combustion, concentration of PM10 was found to be higher than PM2.5. The PMs are observed to contain of many potentially hazardous toxic elements viz. Si, Pb, S, Br, As, Cd, F and Cl.

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Study of the evolution of aerosol emissions from coal-fired power plants due to coagulation, condensation, and gravitational settling and health impact

Cited by 30 publications

References 11 publications

The formation and removal characteristics of aerosols in ammonia-based wet flue gas desulfurization

The formation and removal characteristics of aerosols in ammonia-based wet flue gas desulfurization

Improvements to dust filtration through acoustic agglomeration and atomization

Investigation on Inorganic Constituents in Indian Coal and Emission Characteristics of the Particulates (PM_2.5 and PM₁₀)

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Study of the evolution of aerosol emissions from coal-fired power plants due to coagulation, condensation, and gravitational settling and health impact

Cited by 30 publications

References 11 publications

The formation and removal characteristics of aerosols in ammonia-based wet flue gas desulfurization

The formation and removal characteristics of aerosols in ammonia-based wet flue gas desulfurization

Improvements to dust filtration through acoustic agglomeration and atomization

Investigation on Inorganic Constituents in Indian Coal and Emission Characteristics of the Particulates (PM2.5 and PM10)

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Product

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Investigation on Inorganic Constituents in Indian Coal and Emission Characteristics of the Particulates (PM_2.5 and PM₁₀)