QIAO Guan-ming,LI Yuan-peng,YANG Sen,XIE Jiao-jiao,YUAN Chun-gang.Arsenic Fractions in Byproducts from Coal-fired Power Plant Under Deep Peak-load Regulation[J].Journal of Instrumental Analysis,2026,45(10):2286-2292.
QIAO Guan-ming,LI Yuan-peng,YANG Sen,XIE Jiao-jiao,YUAN Chun-gang.Arsenic Fractions in Byproducts from Coal-fired Power Plant Under Deep Peak-load Regulation[J].Journal of Instrumental Analysis,2026,45(10):2286-2292.DOI: 10.12452/j.fxcsxb.26031301.
Arsenic Fractions in Byproducts from Coal-fired Power Plant Under Deep Peak-load Regulation
Owing to the widespread grid integration of renewable energy,deep peak-load regulation in coal-fired power plants has introduced novel multimedia pollutant partitioning behaviors. This study investigates a 600 MW coal-fired power plant burning high-arsenic coal to examine the effects of load variation on the speciation of arsenic in slag,fly ash,and desulfurization gypsum. Under high-load conditions,arsenic in slag is dominated by the stable residual fraction(72%-77%),whereas the proportion of labile fractions remains low,indicating that high-temperature melting and vitrification favor the stable sequestration of residual arsenic in slag. In fly ash,arsenic fractionation is highly sensitive to load variations. Under high-load conditions,the proportion of labile fractions(F1-F3) is relatively high,whereas under low-load conditions,arsenic accumulates in the residual fraction(F5). This pattern is closely associated with the availability of reactive Ca- and Fe-bearing sites in fly ash. In desulfurization gypsum,total arsenic content and fraction distribution remain stable across loads,showing that occurrence characteristics are primarily governed by the wet flue gas desulfurization system’s chemical conditions. These findings establish a basis for coal combustion byproduct utilization and environmental risk management under deep peak-load regulation.
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Liu J Z , Du Z M , Wang Q H , Fan H B , Liu C . New Type Power Syst. (刘吉臻,杜忠明,王庆华,樊欢豹,刘闯. 新型电力系统), 2024 , 2 ( 4 ): 357 - 370 .
Gao Y , Zhang X , Xu X , Liu L , Zhao Y , Zhang S . Mol. Liq. , 2021 , 343 ( 31 ): 117554 .
National Bureau of Statistics of China . China Statistical Yearbook(中国统计年鉴. 中国国家统计局),2025 .
China Electricity Council . 2024 Economic Operation Report of the Electric Power Industry(中国电力企业联合会 . 2024年电力行业经济运行报告) , 2025 .
Zhang L L , Li M , Zhou X M , Li Y J , Yang J G , Zhao H , Shi H X . Electric Power (章良利,李敏,周晓蒙,郦宜进,杨建国,赵虹,施浩勋. 中国电力), 2017 , 50 ( 7 ): 85 - 89 .
Guan H , Feng Y , Yang X , Du Y , Feng D , Zhou Y . Energy Rep. , 2022 , 8 : 112 - 120 .
Gu Y , Jing X , Chen D , Zhong W , Li Q . Renew. Sust. Energ. Rev. , 2016 , 54 : 723 - 731 .
Yuan C G , Bian M , Liu S , Li L Q , Liu F C , Guo Q , Guo S W , Duan X L . J. Environ. Chem. Eng. , 2025 , 13 ( 2 ): 115376 .
Ma X P , Yang G , Qiao G M , Liu S Y , Xie J J , Li Y P , Yuan C G . J. Environ. Manage. , 2025 , 385 : 125576 .
Jankowski J , Ward C R , French D . Fuel , 2006 , 85 ( 2 ): 243 - 256 .
Chan Z , Wang C G , Liang C , Zhang Y , Xing J Y , Edward J . Anthony . Chem. Eng. J. , 2019 , 392 : 123648 .
Liu H , Wang C , Sun X , Zhang Y , Zou C . Energy Fuels , 2016 , 30 ( 4 ): 9 .
Wang C , Liu H , Yue Z , Chan Z , Anthony E J . Prog. Energy Combust. Sci. , 2018 , 68 ( 9 ): 1 - 28 .
Huang Y D , Hu H Y , Gong H Y , Liu H M , Fu B , Li S , Luo G Q , Yao H . J. Fuel Chem. Technol. (黄永达,胡红云,龚泓宇,刘慧敏,付彪,李帅,罗光前,姚洪. 燃料化学学报), 2020 , 48 ( 11 ): 1281 - 1297 .
Huang Y , Li A , Hu H , Li S , Zou C , Zou R , Wu X , NaruseI , Yao H . Proc. Combust. Inst. , 2024 ,40( 1/4 ) 105467 .
Chen G Y , Sun Y N , Wang Q , Yan B B , Cheng Z J , Ma W C . Fuel , 2019 , 240 : 31 - 39 .
Al-Abed S R , Jegadeesan G , Scheckel K G , Tolaymat T . Environ. Sci. Technol. , 2008 , 42 ( 5 ): 1693 - 1698 .
Fu C , Bai X F , Jiang Y . J. China Coal Soc. (傅丛,白向飞,姜英. 煤炭学报), 2012 , 37 ( 1 ): 96 - 102 .
Wenzel W W , Kirchbaumer N , Prohaska T , Stingeder G , Adriano D C . Anal. Chim. Acta , 2001 , 436 ( 2 ): 309 - 323 .
Xu W Q , Liu Y S , Hu M , Yu H Y , Bao L J . J. Instrum. Anal. (徐文卿,刘雨森,胡敏,于焕云,鲍恋君. 分析测试学报), 2024 , 43 ( 8 ): 1220 - 1226 .
Yuan C G , Jin Y , Wang S . Fresen. Environ. Bull. , 2013 , 22 ( 3 a): 884 - 889 .
Peng A , Lu H , Zhao W , Morvan H , Zhu M . Processes , 2025 , 13 ( 1 ): 242 .
Zhou B , Zhou H , Wang J , Cen K . Fuel , 2015 , 150 : 526 - 537 .
Shen F , Liu J , Zhang Z , Dai J . Environ. Sci. Technol. , 2015 , 49 ( 22 ): 13716 - 13723 .
Kuo Y M , Wang C T , Wang J W , Huang K L . J. Hazard. Mater. , 2009 , 169 ( 1/3 ): 635 - 642 .
Du X , Tang J , Gao X , Chen Y , Ran J , Zhang L . Energy Fuels , 2016 , 30 ( 5 ): 4209 - 4214 .
Xu W T , Song G C , Yang X , Song Q , Yao Q . Fuel , 2022 , 330 : 125557 .
Hartuti S , Kambara S , Takeyama A . Mater. Sci. Eng. A , 2017 , 7 ( 4 ): 9 .
Zhang Y , Liu J . Energy Fuels , 2019 , 33 ( 2 ): 1414 - 1421 .
Fu B , Hower J C , Dai S , Mardon S M , Liu G . ACS Omega , 2018 , 3 ( 12 ): 17637 - 17645 .
Sherman D M , Randall S R . Cosmochim. Acta , 2003 , 67 ( 22 ): 4223 - 4230 .
Gingerich D B , Grol E , Mauter M S . Environ. Sci.:Water Res. Technol. , 2018 , 4 ( 7 ): 909 - 925 .
Fernández-Martínez A , Cuello G J , Johnson M R , Bardelli F , Román-Ross G , Charlet G , Turrillas X . J. Phys. Chem. A , 2008 , 112 ( 23 ): 5159 - 5166 .
Zhang D , Yuan Z , Wang S , Jia Y , Demopoulos G P . J. Hazard. Mater. , 2015 , 300 ( 9 ): 272 - 280 .