剩余污泥水热炭化过程中重金属转化的研究进展  

Research Progress on the Transformation of Heavy Metals in Hydrothermal Carbonization of Excess Sludge

作　　者：谢文玉 丁家正 温福 刘涛 李长刚 梁家豪 XIE Wenyu;DING Jiazheng;WEN Fu;LIU Tao;LI Changgang;LIANG Jiahao(Guangdong Engineering Technology Research Center of Petrochemical Pollution Control,School of Environmental Science and Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China;State Key Laboratory of Petroleum Pollution Control,School of Chemical Engineering and Environment,China University of Petroleum(Beijing),Beijing 102249,China;Zhongke(Guangdong)Refinery&Petrochemical Company Limited,Zhanjiang 524076,China)

机构地区：[1]广东石油化工学院环境科学与工程学院/广东省石油化工污染控制工程技术研究中心,广东茂名525000 [2]中国石油大学(北京)化学工程与环境学院/重质油国家重点实验室,北京102249 [3]中科(广东)炼化有限公司,广东湛江524076

出　　处：《广东石油化工学院学报》2024年第4期67-73,共7页Journal of Guangdong University of Petrochemical Technology

基　　金：茂名市科技计划项目(2022S041);广东石油化工学院人才引进项目(RC-XJ2022000702)。

摘　　要：重金属的生态风险是制约污泥水热炭资源化利用的主要障碍。如何有效地在污泥生物炭中稳定固定重金属,以防止其释放,一直是污泥无害化处理和资源化利用的难题。本文分析了污泥水热炭化过程重金属含量和化学形态的转化规律,总结了反应时间、水热温度、pH、化学添加剂和生物质对污泥水热炭重金属含量和形态的影响。最后,对未来研究方向提出了展望,以期为污泥水热炭重金属固定化提供参考。The ecological risk of heavy metals is a major obstacle to sludge hydrothermal biochar resource utilization.How to effectively stabilize and immobilize heavy metals in sludge biochar to prevent their release has been a difficult problem for the harmless treatment and resource utilization of sludge.The review analyzed the transformation patterns of heavy metal content and chemical speciation during the sludge hydrothermal carbonization process,and summarized the effects of reaction time,hydrothermal temperature,pH,chemical additives and biomass on the heavy metal content and speciation of sludge hydrothermal biochar.Finally,an outlook on the future research direction was proposed to provide a reference for the immobilization of heavy metals in sludge hydrothermal biochar.

关 键 词：水热炭化 剩余污泥 重金属 

分 类 号：X705[环境科学与工程—环境工程]