https://scholars.lib.ntu.edu.tw/handle/123456789/606041
標題: | Thermal treatment of decabrominated diphenyl ether in its highly contaminated soil in Taiwan | 作者: | Ko C.-F Yang Y.-C Wen Liu J.I.W YANG-HSIN SHIH |
關鍵字: | Contaminated soil;Decabrominated diphenyl ether;Polybrominated diphenyl ethers;Soil remediation;Thermal treatment;Contamination;Ethers;Flame retardants;Heat treatment;Heating;Heating rate;Organic pollutants;Remediation;Soil conservation;Soils;BDE 209;Contaminated soils;Decabrominated diphenyl ether (BDE-209);Holding time;Northern Taiwan;Organics;Polybrominated diphenylethers;Soils remediation;Thermal;Soil pollution;decabromodiphenyl ether;diphenyl ether derivative;flame retardant;heating;organic pollutant;PBDE;pollutant removal;soil pollution;soil remediation;temperature effect;Article;concentration (parameter);controlled study;furnace;heat treatment;limit of detection;mass fragmentography;Taiwan;temperature;environmental monitoring;human;soil;soil pollutant;Environmental Monitoring;Flame Retardants;Halogenated Diphenyl Ethers;Humans;Soil;Soil Pollutants | 公開日期: | 2022 | 卷: | 287 | 來源出版物: | Chemosphere | 摘要: | Polybrominated diphenyl ethers (PBDEs) were commonly used flame retardants in the world, while some of PBDEs have been listed as persistent organic pollutants (POPs). Decabrominated diphenyl ether (BDE-209) was the most commercially used PBDEs. A farm near the factory located in Northern Taiwan was highly contaminated with BDE-209. Since PBDEs in the contaminated soils can be uptake by crops shown in our previous studies and could be potentially consumed by humans, it is very important to establish a feasible treatment method for PBDE remediation in this contaminated farm. Thermal treatment of PBDEs in soil was studied. The initial concentration of BDE-209 in contaminated soil was 1.472 mg/kg. A series of thermal experiments under different operating conditions including various temperature (105, 150, 200, 250, 300, 350, 400 and 450 °C), holding time (10, 20 and 30 min), heating rate (5, 10, 20 and 40 °C/min), and soil amount (10, 100, 1000 and 2000 g) were investigated. The optimal heating conditions for thermal treatment of contaminated soil were heating at 450 °C for 30 min with a heating rate of 10 °C/min. Under this condition, the removal of BDE-209 in the different weights of contaminated soil was tested. The soils in the contaminated farm were tested to further evaluate the feasibility of remediating the on-site PBDE contaminated soil through thermal treatment, suggesting that the holding time was extended to 2 h for the field-scale contaminated soil. The results showed that BDE-209 had been removed to below the detection limit in on-site soil. This investigation is the first study using thermal treatment to remediate soils really contaminated with PBDEs. ? 2021 |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114183759&doi=10.1016%2fj.chemosphere.2021.131924&partnerID=40&md5=e1249e5ada47fd4fa7e00f9a6ae7eb54 https://scholars.lib.ntu.edu.tw/handle/123456789/606041 |
ISSN: | 00456535 | DOI: | 10.1016/j.chemosphere.2021.131924 |
顯示於: | 農業化學系 |
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