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市政污泥生物炭在废水吸附处理中的应用

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随着经济全球化的飞速发展,城市污水处理中排放的污泥量日益增加,预计到2025年中国市政污泥年产量将>9.0×107 t.市政污泥中含有的病原微生物、有机物及重金属,会对环境和人体健康造成严重危害.污泥衍生的生物炭材料因其较大的比表面积、优良的孔结构以及丰富的含氧基团,被广泛应用于废水吸附处理领域,实现了固体废物再利用和去除污染的双重目的,做到以废治废,达到生态与发展的双赢.该文总结了市政污泥生物炭的制备及改性方法,介绍了吸附的影响因素,综述了市政污泥生物炭在吸附重金属、染料、无机盐、抗生素、酚类中的应用及其吸附机理;最后,指出了未来污泥生物炭的发展方向和需攻克的难题,应努力形成绿色低碳的资源化处理体系.
Application of municipal sludge biochar in wastewater adsorption treatment
With the rapid development of economic globalization,the amount of sludge discharged from municipal wastewater treatment is increasing,and the annual production of municipal sludge is expected to exceed 9.0×107 t by 2025 in China.The pathogenic microorganisms,organic matter and heavy metals contained in municipal sludge can cause serious harm to the environment and human health.Sludge-derived biochar materials have been widely used in wastewater treatment,achieving the dual purpose of solid waste reuse and pollutant removal due to their large specific surface area,abundant pore structure and rich oxygen-containing groups.In addition,a win-win situation between ecology and development by treating waste with waste can be obtained.In this review,the preparation and modification methods of municipal sludge biochar were summarized,followed by analysis and discussion on the influence factors on adsorption as well as the application and adsorption mechanism of municipal sludge biochar in adsorbing heavy metals,dyes,inorganic salts,antibiotics,and phenols.Finally,the future development and the problems to overcome were discussed,while green low-carbon resource treatment system was considered to be the key for sustainable development.

sludge biocharpreparationmodificationwastewater treatmentadsorption mechanism

贺丹丹、张泽宇、刘娟丽、孙文潇、张文博、张宏

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西北民族大学 化工学院,环境友好复合材料国家民委重点实验室,甘肃省生物质功能复合材料工程研究中心,甘肃省高校环境友好复合材料及生物质利用省级重点实验室,甘肃 兰州 730030

污泥生物炭 制备 改性 废水处理 吸附机理

甘肃省科技计划项目甘肃省科技计划项目西北民族大学中央高校基本科研业务费专项资金资助项目西北民族大学中央高校基本科研业务费专项资金资助项目西北民族大学中央高校基本科研业务费专项资金资助项目

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2024

10.13550/j.jxhg.20230509

精细化工
大连化工研究院设计院 中国化工学会精细化工专业委员会 辽宁省化工研究院

精细化工

CSTPCD北大核心
影响因子：0.557
ISSN：1003-5214
年,卷(期)：2024.41(7)