EXPERIMENTAL STUDY ON THERMAL REMEDIATION OF PETROLEUM HYDROCARBON CONTAMINATED SOILS

LI Yuping; FAN Baoyun; DONG Kangran; WAN Jinzhong; AI Yingbo; WANG Baotian

doi:10.13205/j.hjgc.202404028

Volume 42 Issue 4

Apr. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(4): 242-249

LI Yuping, FAN Baoyun, DONG Kangran, WAN Jinzhong, AI Yingbo, WANG Baotian. EXPERIMENTAL STUDY ON THERMAL REMEDIATION OF PETROLEUM HYDROCARBON CONTAMINATED SOILS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 242-249. doi: 10.13205/j.hjgc.202404028

Citation:

LI Yuping, FAN Baoyun, DONG Kangran, WAN Jinzhong, AI Yingbo, WANG Baotian. EXPERIMENTAL STUDY ON THERMAL REMEDIATION OF PETROLEUM HYDROCARBON CONTAMINATED SOILS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 242-249. doi: 10.13205/j.hjgc.202404028

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EXPERIMENTAL STUDY ON THERMAL REMEDIATION OF PETROLEUM HYDROCARBON CONTAMINATED SOILS

doi: 10.13205/j.hjgc.202404028

1. Key Laboratory of MOE for Geomechanics and Embankment Engineering, Hohai University,Nanjing 210098, China;
2. Engineering Research Center of Dredging Technology, Ministry of Education,Changzhou 213022, China;
3. Nanjing Institute of Environmental Sciences, MEE,Nanjing 210042, China

Received Date: 2023-05-29
Available Online: 2024-06-01

Abstract

Abstract

The current research regarding the remediation of total petroleum hydrocarbon (TPH) contaminated soils largely ignores the effect of soil structures, and cannot provide either good temperature control or reasonable design of heating and extraction tubes. To address this issue, a new bench-scale thermal remediation apparatus has been developed to conduct thermal remediation tests of TPH-contaminated soils. The test results showed that the remediation effect of TPH(C₆ to C₉) was significantly affected by the heating temperature and heating time. The thermal remediation effect of contaminated soils showed large divergence at different locations within the insulation tank, and a good remediation effect is usually accomplished by shorter distances from the heating tube, extraction tube as well as soil surface; the influence from top cover system of the soil surface was however limited. It was also found that the particle components, pH value, contents of nitrogen, phosphorus and potassium of the contaminated soils showed small changes after thermal remediation, and the content of organic matter and moisture content had been significantly reduced. The novel apparatus developed in this study is expected to contribute to the improvement of in-situ thermal remediation technology of TPH-contaminated soils. The findings are supposed to be useful for the selection of operating parameters of thermal remediation technology in the prescribed field as well as environmental assessment.
- petroleum hydrocarbon,
- contaminated soils,
- thermal remediation technology,
- removal rate,
- physicochemical properties

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References

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