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Kill two birds with one stone: Ceramisite production using organic contaminated soil
Shen, Yuandong; Yang, Jie; Chen, Xi; Chen, Yan; Xu, Xu; Zhan, Mingxiu; He, Yue; Jiao, Wentao; Yin, Yongguang
2022-08-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume436Issue:0Pages:129062
AbstractDisposal of organic-contaminated soil through ceramsite production can not only generate ceramsite with acceptable properties but also completely remediate the organic-contaminated soil owing to high treatment temperature. However, the removal mechanism of organic pollutants and the gas-solid phase distribution of the pollutants remain unclear. In this study, coking contaminated soils with high concentrations of polycyclic aromatic hydrocarbons (PAHs) and petroleum hydrocarbon (PHC) were used to prepare ceramsite at 1160 degrees C. The quality of ceramsite met the required product standard when the disposal ratio of contaminated soil was up to 60%. The concentration of PAHs and PHC in the soil was 57.7 mg kg-1 and 255 mg kg-1. After the experiment, almost no PAHs and PHC were found in the ceramsite. High-ring PAHs were dominant in the flue gas when using model soil spiked with PAHs. Computed tomography scanning indicated that cracks developed in the ceramsite when the temperature was higher than 200 degrees C. High-temperature in-situ thermal analysis showed that when the temperature was increased to 400 degrees C, the pollutant from the interior of ceramsite would flow into the flue gas with the released volatile matter. Thermal desorption and degradation of PAHs were the main mechanisms of pollutant removal.
Department土壤环境科学与技术实验室;环境纳米技术与健康效应重点实验室; ; 土壤环境科学与技术实验室;环境纳米技术与健康效应重点实验室;
KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS SEWAGE-SLUDGE PYROLYSIS PETROLEUM CERAMSITE PAHS REMEDIATION MECHANISMS PARTICLES MOBILITY
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47761
Collection土壤环境科学实验室
Corresponding AuthorZhan, Mingxiu
Affiliation1.China Jiliang Univ, Coll Metrol & Measurement Engn, Hangzhou 310018, Peoples R China
2.Zhejiang Fangyuan New Mat Co Ltd, Taizhou 318000, Peoples R China
3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
4.Minist Ecol & Environm, Nanjing Inst Environm Sci, Nanjing 210042, Peoples R China
Recommended Citation
GB/T 7714
Shen, Yuandong,Yang, Jie,Chen, Xi,et al. Kill two birds with one stone: Ceramisite production using organic contaminated soil[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,436(0):129062.
APA Shen, Yuandong.,Yang, Jie.,Chen, Xi.,Chen, Yan.,Xu, Xu.,...&Yin, Yongguang.(2022).Kill two birds with one stone: Ceramisite production using organic contaminated soil.JOURNAL OF HAZARDOUS MATERIALS,436(0),129062.
MLA Shen, Yuandong,et al."Kill two birds with one stone: Ceramisite production using organic contaminated soil".JOURNAL OF HAZARDOUS MATERIALS 436.0(2022):129062.
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