文献类型：期刊文献

英文题名：Fast Joule heating treatment on sewage sludge and low-rank coal mixtures: Product characteristics and environmental assessment

作者：Zhu, Yuxiao[1];Liu, Chenyang[1];Shen, Zhongjie[1];Liu, Haifeng[1,2]

机构：[1]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, POB 272, Shanghai 200237, Peoples R China;[2]Liaoning Petrochem Univ, Fushun 113001, Liaoning, Peoples R China

年份：2026

卷号：198

外文期刊名：JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS

收录：;EI(收录号：20262320856399);WOS:【SCI-EXPANDED(收录号:WOS:001794910300001)】；

基金：This study was supported by the National Key R&D Program of China (2022YFC3902502-04), National Natural Science Foundation of China (22378130).

语种：英文

外文关键词：Sewage sludge; Low-rank coal; Fast co-pyrolysis; Fast Joule heating; Heavy metals

摘要：Sewage sludge, generated as an inevitable by-product of industrial wastewater treatment facilities, necessitates stringent management strategies due to its potential environmental burden and regulatory implications. The current work used a fast Joule heating method to investigate the co-pyrolysis of sewage sludge (SS) and low-rank bituminous coal (BC) at high temperature for evaluating product distribution and heavy metal (HM) immobilization. The results demonstrated that the increasing SS content promoted the generation of CO but decreased HQ yield at high temperature, while inhibiting the yield of COQ and hydrocarbon gases in syngas. The increase of pyrolysis temperature from 1000 degrees C to 2000 degrees C caused the reduction of char yield and the increase of graphitization degree and glassiness degree. Regarding heavy metal immobilization, the optimal condition was identified at a 7:3 SS-to-coal ratio and a temperature of 1500 degrees C, achieving maximum enrichment and stability. These findings highlighted the potential of fast co-pyrolysis as an effective method for simultaneous energy recovery and heavy metal stabilization from sewage sludge.