市政污泥生物质炭在废水吸附处理中的应用

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年我国市政污泥年产量将超过9000万吨。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、优良的孔隙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。本文系统总结了污泥生物质炭的制备及改性方法、综述了其对废水中重金属、染料、无机盐、抗生素、酚类等的应用及其吸附机理，指出未来污泥生物炭的发展方向和需攻克的难题，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 90 million tons 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. Due to its large specific surface area, excellent pore structure and rich oxygen-containing groups, sludge-derived biochar materials are widely used in wastewater treatment, achieving the dual purpose of solid waste reuse and pollution removal. In addition, a win-win situation of ecology and development by treating waste with waste can be obtained. So the preparation and modification methods of sludge biochar is systematically summarized, its application to heavy metals, dyes, inorganic salts, antibiotics and phenols in wastewater and its adsorption mechanism are also reviewed in the paper. And the future development and the problems to overcome are also prospected, Green low-carbon resource treatment system will be tried to form.