FORMATION CHARACTERISTICS OF GASEOUS POLLUTANTS DURING CO-COMBUSTION PROCESS OF STEEL SMELTING SOLID WASTE AND WASTE INCINERATION FLY ASH

XIANG Yuxue; LIANG Daolun; WANG Xiaojia; QIAN Yiwen; PAN Queyi; LIU Guofu; SHEN Dekui

doi:10.13205/j.hjgc.202312024

Volume 41 Issue 12

Dec. 2023

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XIANG Yuxue, LIANG Daolun, WANG Xiaojia, QIAN Yiwen, PAN Queyi, LIU Guofu, SHEN Dekui. FORMATION CHARACTERISTICS OF GASEOUS POLLUTANTS DURING CO-COMBUSTION PROCESS OF STEEL SMELTING SOLID WASTE AND WASTE INCINERATION FLY ASH[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 197-205,106. doi: 10.13205/j.hjgc.202312024

Citation:

XIANG Yuxue, LIANG Daolun, WANG Xiaojia, QIAN Yiwen, PAN Queyi, LIU Guofu, SHEN Dekui. FORMATION CHARACTERISTICS OF GASEOUS POLLUTANTS DURING CO-COMBUSTION PROCESS OF STEEL SMELTING SOLID WASTE AND WASTE INCINERATION FLY ASH[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 197-205,106. doi: 10.13205/j.hjgc.202312024

Citation:

XIANG Yuxue, LIANG Daolun, WANG Xiaojia, QIAN Yiwen, PAN Queyi, LIU Guofu, SHEN Dekui. FORMATION CHARACTERISTICS OF GASEOUS POLLUTANTS DURING CO-COMBUSTION PROCESS OF STEEL SMELTING SOLID WASTE AND WASTE INCINERATION FLY ASH[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 197-205,106. doi: 10.13205/j.hjgc.202312024

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FORMATION CHARACTERISTICS OF GASEOUS POLLUTANTS DURING CO-COMBUSTION PROCESS OF STEEL SMELTING SOLID WASTE AND WASTE INCINERATION FLY ASH

doi: 10.13205/j.hjgc.202312024

1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China;
2. School of Energy and Power Engineering, Qilu University of Technology, Jinan 250306, China

Received Date: 2023-02-25
Available Online: 2024-03-08

Abstract

Abstract

The process of cement kiln pre-decomposition and steel kiln sintering was simulated by the tube furnace combustion experiment. At 900 ℃, the formation characteristics of gaseous pollutants were studied during the heat utilization and co-combustion process of four typical steel smelting solid wastes, namely, the steel dust sludge, the converter dust, the sintered dust, and the blast furnace bag dust with the waste incineration fly ash. The co-combustion of four kinds of solid wastes of iron and steel smelting, and fly ash of waste incineration was carried out at the mass ratio of 2:8, 3:7 and 4:6, respectively. The results showed that the best blend ratios of the steel dust sludge, the converter dust, the sintered dust, and the blast furnace bag dust with the waste incineration fly ash to inhibit the formation of NO and the volatilization of Pb and Zn were 20%, 20%, 30%, and 40%, respectively. Among the four typical steel smelting solid wastes, the co-combustion of converter ash and waste incineration fly ash has the best inhibition effect on NO formation, the co-combustion of blast furnace bag ash and waste incineration fly ash has the most stable inhibition effect on Pb volatilization, and the best inhibition effect on Zn volatilization. Above experimental works are expected to be a scientific theoretical reference for the further technological development on the formation inhibition and emission control of gaseous pollutants during thermal disposal processes.
- steel smelting solid waste,
- waste incineration fly ash,
- co-combustion,
- gaseous pollutants,
- nitrous oxides,
- volatile heavy metal

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References(40)

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