ADSORPTION OF PETROLEUM POLLUTANTS ON DIFFERENT TEXTURE SOILS IN XINJIANG

SHI Wenwen; WEI Xing; ZHOU Jinlong; LEI Mi; ZENG Yanyan

doi:10.13205/j.hjgc.202204018

Volume 40 Issue 4

Apr. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(4): 127-133

SHI Wenwen, WEI Xing, ZHOU Jinlong, LEI Mi, ZENG Yanyan. ADSORPTION OF PETROLEUM POLLUTANTS ON DIFFERENT TEXTURE SOILS IN XINJIANG[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(4): 127-133. doi: 10.13205/j.hjgc.202204018

Citation:

SHI Wenwen, WEI Xing, ZHOU Jinlong, LEI Mi, ZENG Yanyan. ADSORPTION OF PETROLEUM POLLUTANTS ON DIFFERENT TEXTURE SOILS IN XINJIANG[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(4): 127-133. doi: 10.13205/j.hjgc.202204018

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ADSORPTION OF PETROLEUM POLLUTANTS ON DIFFERENT TEXTURE SOILS IN XINJIANG

doi: 10.13205/j.hjgc.202204018

SHI Wenwen^1,2,3,
WEI Xing^1,2,3,
ZHOU Jinlong^{1,2,3
,
,},
LEI Mi^1,2,3,
ZENG Yanyan^1,2,3

1. College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China;
2. Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi 830052, China;
3. Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China

Received Date: 2021-03-29
Available Online: 2022-07-06

Abstract

Abstract

The study on the migration and transformation of petroleum pollutants is of great significance to environmental protection and human health. Because of their different adsorption behaviors in soils with different textures, the static adsorption test method was adopted, and the adsorption kinetics and adsorption thermodynamics of petroleum hydrocarbons on three kinds of soils (silty soil, silty sand and silty clay) in Ganquanbao industrial area of Xinjiang were studied. The effects of soil particle size, organic matter content, pH value and salt content on the adsorption of petroleum hydrocarbons were analyzed. The results showed that the adsorption of petroleum hydrocarbons by silty soil, silty sand and silty clay reached adsorption equilibrium in 240 minutes. The adsorption capacity from large to small was silty soil, silty clay, and then silty sand, and the equilibrium adsorption capacity was 0.7765 mg/g, 0.6763 mg/g and 0.7173 mg/g respectively. The quasi-second-order kinetic model (R²=0.9967~0.9989) could more accurately describe the process of soil adsorption of petroleum hydrocarbons. The isotherm was of Langmuir type, and their adsorption equilibrium constants (K_a) were 0.6126 (silty soil), 3.1310 (silty sand) and 0.1180 (silty clay), indicating that the adsorption of petroleum hydrocarbons in different texture soils was monolayer adsorption. The amount of soil adsorbed to petroleum hydrocarbons gradually increased with the decrease of soil particle size and pH, and the increase of organic matter content and salt content.
- soil texture,
- adsorption,
- petroleum hydrocarbon,
- static experiment,
- Xinjiang

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References(30)

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