Partitioning and Emission Characteristics of Hg, Cr, Pb, and As Among Air Pollution Control Devices in Chinese Coal-Fired Industrial Boilers

Tong, Yali; Yue, Tao; Gao, Jiajia; Wang, Kun; Wang, Chenlong; Zuo, Peng; Zhang, Xiaoxi; Li, Tong; Qiang, Liang

doi:10.1021/acs.energyfuels.0c01200

Cited by 20 publications

(3 citation statements)

References 35 publications

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“…1 : where is the discharge of the j th air pollutant generated by the sector i , is the emission factor of the j th air pollutant from the combustion of the k th type of fuel source in sector i , is the total amount of the k th type of fuel consumed by the sector i , is the emission factor of the j th air pollutant for the industrial process of producing product k , is the total amount of k produced by the sector i , and n is the number of products from sector i which varies across sectors. Data for and are from the Intergovernmental Panel on Climate Change (IPCC) 22 – 24 , the Ministry of Ecology and Environment of the People’s Republic of China (MEEPRC) 25 , 26 , and previous studies 27 – 33 . Besides, the sector of Electricity & Heat Production and Supply also consumes fuel sources in their energy conversion process.…”

Section: Methodsmentioning

confidence: 99%

Chinese environmentally extended input-output database for 2017 and 2018

Tian

Liu

et al. 2021

Sci Data

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Environmental footprint analyses for China have gained sustained attention in the literature, which rely on quality EEIO databases based on benchmark input-output (IO) tables. The Chinese environmentally extended input-output (CEEIO) database series provide publically available EEIO databases for China for 1992, 1997, 2002, 2007, and 2012 with consistent and transparent data sources and database structure. Based on the latest benchmark IO tables for China for 2017 and 2018, here we develop the corresponding 2017 and 2018 CEEIO databases following the same method used to develop previous CEEIO databases. The 2017 and 2018 CEEIO databases cover 44 and 28 types of environmental pressures, respectively, and consider multiple sector classifications including ones consistent with previous CEEIO databases and ones following the 2017 China’s national economy industry classification standard. A notable improvement in the 2017 and 2018 CEEIO databases is the comprehensive inclusion of CO2 emissions from additional industrial processes. This work provides a consistent update of the CEEIO database and enables a wide range of timely environmental footprint analyses related to China.

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Section: Methodsmentioning

confidence: 99%

Chinese environmentally extended input-output database for 2017 and 2018

Tian

Liu

et al. 2021

Sci Data

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“…Heavy metal pollution is closely related to the regional economic development level and the nature of leading local enterprises. In particular, regional soil pollution due to heavy metal is more serious with a higher degree of industrialization, such as the combustion of coal, oil, and other traditional energy minerals and the "three waste" emissions of chemical mining, mainly enriching the soil layer with As, Cd, Cr, Hg, Pb, Cu, and Zn elements [19,20]. Peng et al [8] showed that the content of heavy metals in soil was relatively high in the Chinese cities of economically developed coastal provinces (e.g., Zhejiang) and resource-based provinces (e.g., Hunan).…”

Section: Introductionmentioning

confidence: 99%

The Spatial Distribution and Influencing Factors of Heavy Metals in Soil in Xinjiang, China

Li,

Xue,

Cai

et al. 2023

Sustainability

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Heavy metal pollution has been a problem of concern in soil ecology in recent decades. This study investigated the spatial distribution of heavy metals and their pollution levels in the soil of Xinjiang, based on the data of heavy metals published in the literature in the past five years, by using a geostatistical method, pollution index method, and geographic information system (GIS)-based spatial analysis. Additionally, the effects of five economic development indicators, such as population and industrial activities on the accumulation of heavy metals in soil, were explored by correlation analysis. The results showed that the average contents of Cd, Cr, Cu, Ni, Pb, and Zn in the soils were 2.858, 1.062, 1.194, 1.159, 1.192, and 1.086 times higher than the background values in Xinjiang, respectively. The semi-variance functions indicated that the Cd and Pb block gold coefficients of soils were greater than 25% and less than 50%, with an obvious spatial correlation. The spatial patterns showed that the high values of Cd, Cr, Cu, Ni, Pb, and Zn were mainly distributed in Karamay, Changji, Tacheng, and Kashi areas, with an overall decreasing trend from north to south, and the pollution index showed that the pollution of heavy metal Cd in soil was the most serious. Furthermore, Karamay, Changji, and Kashi areas were at heavy pollution levels. Correlation analysis showed that heavy metal Pb in the soil was significantly positively correlated with the agricultural GDP in Xinjiang, while Cd was correlated significantly and positively with comprehensive energy consumption and more significantly with industrial GDP. Thus, this study could provide a scientific basis for local evaluation of soil environmental quality and prevention and control of soil heavy metal pollution, which is of great significance for understanding the impact of human activities.

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“…In the past few decades, many gaseous pollutants control technologies have been developed. In these technologies, wet flue gas desulfurization (WFGD) and selective catalytic reduction (SCR) denitration are the two most widely used SO 2 and NO x removal technologies. − Activated carbon adsorption is the main removal technology of heavy metals, Hg and As, from gas stream. − Alcohol amine absorption and catalytic oxidation are the most widely used treatment technologies of gaseous H 2 S. − The mainstream removal technologies of VOCs are rich due to huge types of VOCs and their different characteristics. Adsorption, absorption, condensation, and catalytic combustion are the common VOCs removal technologies. − Supporting Information (SI) Figure S1 shows the classification of these gaseous pollutants common removal technologies.…”

Section: Introductionmentioning

confidence: 99%

A Critical Review on Removal of Gaseous Pollutants Using Sulfate Radical-based Advanced Oxidation Technologies

Liu

Wang

2021

Environ. Sci. Technol.

114

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Excessive emissions of gaseous pollutants such as SO2, NO x , heavy metals (Hg, As, etc.), H2S, VOCs, etc. have triggered a series of environmental pollution incidents. Sulfate radical (SO4•–)-based advanced oxidation technologies (AOTs) are one of the most promising gaseous pollutants removal technologies because they can not only produce active free radicals with strong oxidation ability to simultaneously degrade most of gaseous pollutants, but also their reaction processes are environmentally friendly. However, so far, the special review focusing on gaseous pollutants removal using SO4•–-based AOTs is not reported. This review reports the latest advances in removal of gaseous pollutants (e.g., SO2, NO x , Hg, As, H2S, and VOCs) using SO4•–-based AOTs. The performance, mechanism, active species identification and advantages/disadvantages of these removal technologies using SO4•–-based AOTs are reviewed. The existing challenges and further research suggestions are also commented. Results show that SO4•–-based AOTs possess good development potential in gaseous pollutant control field due to simple reagent transportation and storage, low product post-treatment requirements and strong degradation ability of refractory pollutants. Each SO4•–-based AOT possesses its own advantages and disadvantages in terms of removal performance, cost, reliability, and product post-treatment. Low free radical yield, poor removal capacity, unclear removal mechanism/contribution of active species, unreliable technology and high cost are still the main problems in this field. The combined use of multiactivation technologies is one of the promising strategies to overcome these defects since it may make up for the shortcomings of independent technology. In order to improve free radical yield and pollutant removal capacity, enhancement of mass transfer and optimization design of reactor are critical issues. Comprehensive consideration of catalytic materials, removal chemistry, mass transfer and reactor is the promising route to solve these problems. In order to clarify removal mechanism, it is essential to select suitable free radical sacrificial agents, probes and spin trapping agents, which possess high selectivity for target specie, high solubility in water, and little effect on activity of catalyst itself and mass transfer/diffusion parameters. In order to further reduce investment and operating costs, it is necessary to carry out the related studies on simultaneous removal of more gaseous pollutants.

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Partitioning and Emission Characteristics of Hg, Cr, Pb, and As Among Air Pollution Control Devices in Chinese Coal-Fired Industrial Boilers

Cited by 20 publications

References 35 publications

Chinese environmentally extended input-output database for 2017 and 2018

Chinese environmentally extended input-output database for 2017 and 2018

The Spatial Distribution and Influencing Factors of Heavy Metals in Soil in Xinjiang, China

A Critical Review on Removal of Gaseous Pollutants Using Sulfate Radical-based Advanced Oxidation Technologies

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