DISTRIBUTION CHARACTERISTICS OF WATER-SOLUBLE IONS IN SOILS, DUST AND COKE QUENCHING SLAG AROUND THE COKE OVEN

LI Xuan; LIU Xiao-feng; BAI Hui-ling; MU Ling; LI Yang-yong

doi:10.13205/j.hjgc.202110022

Volume 39 Issue 10

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(10): 157-162,149

LI Xuan, LIU Xiao-feng, BAI Hui-ling, MU Ling, LI Yang-yong. DISTRIBUTION CHARACTERISTICS OF WATER-SOLUBLE IONS IN SOILS, DUST AND COKE QUENCHING SLAG AROUND THE COKE OVEN[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 157-162,149. doi: 10.13205/j.hjgc.202110022

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LI Xuan, LIU Xiao-feng, BAI Hui-ling, MU Ling, LI Yang-yong. DISTRIBUTION CHARACTERISTICS OF WATER-SOLUBLE IONS IN SOILS, DUST AND COKE QUENCHING SLAG AROUND THE COKE OVEN[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 157-162,149. doi: 10.13205/j.hjgc.202110022

Citation:

LI Xuan, LIU Xiao-feng, BAI Hui-ling, MU Ling, LI Yang-yong. DISTRIBUTION CHARACTERISTICS OF WATER-SOLUBLE IONS IN SOILS, DUST AND COKE QUENCHING SLAG AROUND THE COKE OVEN[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 157-162,149. doi: 10.13205/j.hjgc.202110022

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DISTRIBUTION CHARACTERISTICS OF WATER-SOLUBLE IONS IN SOILS, DUST AND COKE QUENCHING SLAG AROUND THE COKE OVEN

doi: 10.13205/j.hjgc.202110022

School of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 2021-02-04
Available Online: 2022-01-26

Abstract

Abstract

In order to clarify the distribution characteristics of water-soluble ions in the soils, dust and coke quenching slag around the coke oven, the samples around the coke oven were collected. Ions (SO₄^2-, NO₃^-, Cl^-, F^-, NH₄⁺, Na⁺, Ca²⁺, K⁺, and Mg²⁺) in the samples were analyzed using ICS-90 ion chromatograph (Dionex, USA).The results showed that the mass fractions of water-soluble ions in the soils, dust and coke quenching slag around the coke oven were 1.65, 5.27, 2.19 g/kg, respectively. The variation coefficients of SO₄^2- and NH₄⁺ in the soils around the coke oven were 84.22% and 51.17%, suggesting that the soils were affected differently by pollutants emitted during coking process. The soil inside the coking plant were more susceptible to pollutants emitted from coking process, than those in the soil outside the coking plant. The NO₃^-/SO₄^2- ratios in the dust near combustion chamber exhaust chimney and in south of quenching tower were 0.46 and 0.03, respectively, indicating that the dust around the coke oven was also affected by the pollutants emitted from coking process. The mass fractions of total water-soluble ions and SO₄^2- in the dust in south of quenching tower were 6.99 times and 18.44 times those of the dust next to combustion chamber exhaust chimney, respectively. The distribution characteristic of water-soluble ions in coke quenching slag was almost the same as that in dust in south of quenching tower, and there was a significant correlation between coke quenching slag and dust in south of quenching tower. SO₄^2- was a water-soluble ion with the highest mass fraction in the soils, dust and coke quenching slag around the coke oven. Therefore, it was suggested to strengthen the control of particulate matter and SO₂ emission in the coking process.
- coke oven,
- soil,
- dust,
- water-soluble ion,
- variation coefficient

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References(44)

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