Application comparison and carbon emission accounting of different gas thermal desorption technologies

LI Tianyi; WANG Chenchen; JIN Cheng; LI Yu; ZHANG Hongyang; ZHANG Zhongju

doi:10.13205/j.hjgc.202602016

Volume 44 Issue 2

Feb. 2026

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2026 > 44(2): 141-149

LI Tianyi, WANG Chenchen, JIN Cheng, LI Yu, ZHANG Hongyang, ZHANG Zhongju. Application comparison and carbon emission accounting of different gas thermal desorption technologies[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(2): 141-149. doi: 10.13205/j.hjgc.202602016

Citation:

LI Tianyi, WANG Chenchen, JIN Cheng, LI Yu, ZHANG Hongyang, ZHANG Zhongju. Application comparison and carbon emission accounting of different gas thermal desorption technologies[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(2): 141-149. doi: 10.13205/j.hjgc.202602016

Citation:

LI Tianyi, WANG Chenchen, JIN Cheng, LI Yu, ZHANG Hongyang, ZHANG Zhongju. Application comparison and carbon emission accounting of different gas thermal desorption technologies[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(2): 141-149. doi: 10.13205/j.hjgc.202602016

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Application comparison and carbon emission accounting of different gas thermal desorption technologies

doi: 10.13205/j.hjgc.202602016

Suzhou Elite Environmental Protection Co., Ltd., Suzhou 215000, China

Received Date: 2025-01-17
Available Online: 2026-04-11
Publish Date: 2026-02-01

Abstract

Abstract

Through comparing the technical application and carbon emissions of in-situ and ex-situ gas thermal desorption technology in the remediation process of contaminated sites， the application trend of thermal desorption technology in future site remediation is comprehensively analyzed， and suggestions are provided for innovation and improvement of the technology under the requirements of green low-carbon remediation. The study showed that the amount of mechanical input in the ex-situ gas thermal desorption remediation process is higher than that of in-situ gas thermal desorption technology； however， the number of equipment input is lower than that of in-situ technology. The main energy consumption and carbon emission sources of this technology are gas， diesel， and electricity. According to the process data of four contaminated projects in China， the carbon emissions were calculated. The carbon emission per cubic contaminated soil repaired by thermal desorption technology was in the range of 170.74 to 373.25 kg CO₂-eq. The carbon emissions of each cubic contaminated soil remediated by in-situ gas thermal desorption technology were lower than those of ex-situ gas thermal desorption technology. The proportions of carbon emissions of materials used in the remediation process for in-situ gas thermal desorption technology were in the order of natural gas>steel>concrete>electricity>NaOH>others； for the ex-situ gas thermal desorption technology， the order was natural gas>quicklime>concrete>electricity>diesel>others. To achieve the goal of green low-carbon restoration， pollution reduction， and carbon reduction， the following methods can be adopted： selecting the specific parameters of thermal desorption technology， optimizing the energy supply structure， upgrading or innovating the research and development of thermal desorption equipment， and combining thermal desorption technology with other technologies.
- thermal desorption technology,
- carbon emission accounting,
- contaminated site,
- soil remediation,
- carbon emission reduction

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References(27)

References

[1]	ZHOU C S，ZOU S Z，ZHU D N，et al. Research progress of main technologies for remediation of soil and groundwater pollution［J］. China Mining Magazine，2021，30（S2）:221-227. 周长松，邹胜章，朱丹尼，等. 土壤与地下水污染修复主要技术研究进展［J］. 中国矿业，2021，30（增刊2）:221-227.
[2]	CAO T T，LI J. Research progress on contaminated site remediation technology［J］. Environment and Development，2019，31（12）:45-46. 曹婷婷，李娟. 污染场地修复技术研究进展［J］. 环境与发展，2019，31（12）:45-46.
[3]	ZHAN M X，LIU L P，GU H L，et al. Recent advances and prospects of heat and mass transfer in soil during in-situ thermal remediation［J］. Chinese Journal of Environmental Engineering，2022，16（4）:1272-1283. 詹明秀，刘立朋，顾海林，等. 原位热修复过程中土壤内热质传递研究现状与展望［J］. 环境工程学报，2022，16（4）:1272-1283.
[4]	ZHENG W，GAO B，MIN H H，et al. Study on status and development of contaminated site remediation technology application in China［J］. Environmental Sanitation Engineering，2019，27（3）:6-8. 郑苇，高波，闵海华，等. 我国污染场地修复技术应用现状与发展研究［J］. 环境卫生工程，2019，27（3）:6-8.
[5]	EPA. Superfund Remedy Report［R］. Washington D C:U.S. Environmental Protection Agency，2017:1-186.
[6]	WU J Y，FANG Z Q，XUE C J，et al. Bibliometric analysis of patents for the soil remediation of organic contaminated sites in China［J］. Chinese Journal of Environmental Engineering，2019，13（8）:2015-2024. 吴嘉茵，方战强，薛成杰，等. 我国有机物污染场地土壤修复技术的专利计量分析［J］. 环境工程学报，2019，13（8）:2015-2024.
[7]	Ministry of Ecology and Environment. Guiding Opinions on Promoting Risk Control and Green Low-Carbon Remediation of Soil Pollution（Huanban Turi〔2023〕No.19）［EB/OL］.（2023-06-12）［2025-11-12］. https://www.mee.gov.cn/xxgk2018/xxgk/xxgk02/202306/t20230612_1021859.shtml. 生态环境部. 关于促进土壤污染风险管控和绿色低碳修复的指导意见（环办土壤［2023］ 19 号）［EB/OL］.（2023-06-12）［2025-11-12］. https://www.mee.gov.cn/xxgk2018/xxgk/xxgk02/202306/t20230612_1021859.shtml.
[8]	AMPONSAH N Y，WANG J Y，ZHAO L. A review of life cycle greenhouse gas（GHG）emissions of commonly used ex-situ soil treatment technologies［J］. Journal of Cleaner Production，2018，186:514-525.
[9]	MENG H，DONG J Q，ZHANG H Z，et al. Calculation method and case analysis of carbon emissions for risk control and management of contaminated sites［J］. China Environmental Science，2023，43（S1）:368-375. 孟豪，董璟琦，张红振，等. 污染场地风险管控碳排放计算方法及案例分析［J］. 中国环境科学，2023，43（增刊1）:368-375.
[10]	XUE C J，FANG Z Q. Path of carbon emission peaking and carbon neutrality in soil remediation industry［J］. Environmental Engineering，2022，40（8）:231-238. 薛成杰，方战强. 土壤修复产业碳达峰碳中和路径研究［J］. 环境工程，2022，40（8）:231-238.
[11]	YANG J，YE C M，SIMA J K，et al. Discussion on the development trend of in-situ thermal treatment technology for contaminated sites under dual-carbon target［J］. Chinese Journal of Environmental Engineering，2022，16（11）:3517-3529. 杨洁，叶春梅，司马菁珂，等.“双碳” 目标下污染场地原位热处理技术发展趋势［J］. 环境工程学报，2022，16（11）:3517-3529.
[12]	LIU S，CHEN P，SONG H M，et al. Carbon emissions and emission reduction strategy for remediation of contaminated soil by ex-situ thermal desorption in East China［J］. Chinese Journal of Environmental Engineering，2022，16（8）:2663-2671. 刘爽，陈盼，宋慧敏，等. 我国华东地区污染土壤异位热脱附修复碳排放及减排策略［J］. 环境工程学报，2022，16（8）:2663-2671.
[13]	XIAO Y X. Prospect and application of thermal desorption technology in remediation of polluted soil［J］. Jiangxi Building Materials，2022（4）:319-321. 肖宇翔. 热脱附技术修复污染土壤的前景与应用［J］. 江西建材，2022（4）:319-321.
[14]	SHI F S. Application of soil thermal desorption technology in chemical contaminated sites［J］. Chemical Engineering Management，2021（32）:40-41. 史福生. 土壤热脱附技术在化工污染场地修复中的应用［J］. 化工管理，2021（32）:40-41.
[15]	LIU W X，XIA T X，ZHANG L N，et al. Environmental footprint analysis of contaminated soil remediation projects based on remediation effects［J］. Research of Environmental Sciences，2022，35（10）:2367-2377. 刘文晓，夏天翔，张丽娜，等. 基于修复效果的污染土壤修复工程环境足迹分析［J］. 环境科学研究，2022，35（10）:2367-2377.
[16]	GUO C，XU J，YANG L，et al. Life cycle evaluation of greenhouse gas emissions of a highway tunnel:A case study in China［J］. Journal of Cleaner Production，2019，211:972-980.
[17]	LIU M D，MENG J J，LIU B H. Progress in the Studies of Carbon Emission Estimation［J］. Tropical Geography，2014，34（2）:248-258. 刘明达，蒙吉军，刘碧寒. 国内外碳排放核算方法研究进展［J］. 热带地理，2014，34（2）:248-258.
[18]	CHEN X A，WANG W B，LI R F，et al. Accounting，optimization and prediction of carbon emission in ex-situ thermal desorption for site remediation［J］. Chinese Journal of Environmental Engineering，2024，18（4）:1073-1082. 陈汐昂，王文兵，李瑞飞，等. 场地修复异位热脱附碳排放核算、优化与预测［J］. 环境工程学报，2024，18（4）:1073-1082.
[19]	China City Greenhouse Gas Working Group，Institute of Public and Environmental Affairs. China Products Carbon Footprint Factors Database［EB/OL］.［2025-11-12］. https://lca.cityghg.com/pages. 中国碳核算数据库. 中国产品全生命周期温室气体排放系数库［EB/OL］.［2025-11-12］. https://lca.cityghg.com/pages.
[20]	Center for Carbon Peaking and Carbon Neutrality Studies，Chinese Academy for Environmental Planning，Ministry of Ecology and Environment. China Products Life Cycle Greenhouse Gas Emission Factor Set（2022）［EB/OL］.（2022-01-05）［2025-11-12］. http://www.caep.org.cn/sy/tdftzhyjzx/zxdt/202201/t20220105_966202.shtml. 生态环境部环境规划院碳达峰碳中和研究中心. 中国产品全生命周期温室气体排放系数集（2022）［EB/OL］.（2022-01-05）［2025-11-12］. http://www.caep.org.cn/sy/tdftzhyjzx/zxdt/202201/t20220105_966202.shtml.
[21]	HUANG H，ZHOU J，HE T T，et al. Influencing factors of UV-light transmittance of PVDF film and effect on aging rate of PV backsheet［J］. Engineering Plastics Application，2018，46（10）:111-116. 黄欢，周君，何甜甜，等. PVDF 膜的紫外透过率影响因素及其对背板老化速度的影响［J］. 工程塑料应用，2018，46（10）:111-116.
[22]	JIANG W C. Research on green low-carbon assessment and measures for thermal desorption technology applied in contaminated site［J］. Environmental Pollution and Control，2023，45（8）:1189-1194. 姜文超. 污染场地热脱附技术的绿色低碳评价与措施研究［J］. 环境污染与防治，2023，45（8）:1189-1194.
[23]	CHEN J H，LI S H，LIU J K，et al. Soil remediation effect and influencing factors of gas thermal desorption technology［J］. Chinese Journal of Environmental Engineering，2022，16（5）:1610-1619. 陈俊华，李绍华，刘晋恺，等. 燃气热脱附技术土壤修复效果及影响因素［J］. 环境工程学报，2022，16（5）:1610-1619.
[24]	WU D H，HAN J N，LIU B，et al. Investigation of the carbon peaking and carbon neutralization pathway of thermal desorption technology for contaminated soil remediation［J］. Environmental Engineering，2023，41（S2）:701-706. 吴东海，韩俊楠，刘斌，等. 污染土壤热脱附技术的碳达峰碳中和路径初探［J］. 环境工程，2023，41（增刊2）:701-706.
[25]	HAN W，YE Y，JIAO W T，et al. Significance，effects and prospect of in-situ thermal desorption coupled with other related technologies in the contaminated site remediation［J］. Chinese Journal of Environmental Engineering，2019，13（10）:2302-2310. 韩伟，叶渊，焦文涛，等. 污染场地修复中原位热脱附技术与其他相关技术耦合联用的意义、效果及展望［J］. 环境工程学报，2019，13（10）:2302-2310.
[26]	GU W W，LI X X，LI Q，et al. Combined remediation of polychlorinated naphthalene-contaminated soil under multiple scenarios:an integrated method of genetic engineering and environmental remediation technology［J］. Journal of Hazardous Materials，2021，405:124139.
[27]	CHEN L W，HUA X，CAI T，et al. Degradation of triclosan in soils by thermally activated persulfate under conditions representative of in-situ chemical oxidation（ISCO）［J］. Chemical Engineering Journal，2019，369:344-352.