The preparation of sludge-based activated carbon and its application in the environmental fields of water and atmosphere were reviewed.The review of sludge based activated carbon preparation is mainly focused on the summary of the three traditional methods theory.Meanwhile,the advantages,disadvantages and main application of seven different methods are compared.The methods of improving sludge activated carbon properties by adding crop straw and mineral are introduced.The application of sludge based activated carbon in the field of environment includes the adsorption of organic dyes,organic drugs,small molecular organic compounds and heavy metals in waste-water and the purification of hydrogen sulfide,other industrial waste gas and indoor formaldehyde gas.In addition,this paper illustrated the In addition,this paper illustrates the application and performance of sludge based activated carbon from different sources.Finally,the existing problems and future development direction of sludge based activated carbons are summarized.%从污泥基活性炭的制备及其在水和大气环境领域的应用两个部分进行了综述.主要总结了3种传统制备方法的原理;同时,对比了7种不同制备方法的优缺点和主要用途,汇总了通过添加农作物秸秆和矿物来提升污泥活性炭性质的相关研究.污泥基活性炭在环境领域的应用主要包括其对废水中有机染料、有机药物、小分子有机化合物和重金属的吸附以及其对硫化氢等工业废气和甲醛等室内废气的净化.另外,分别举例说明了不同来源污泥基活性炭的用途和性能.最后,总结分析了污泥基活性炭在研究中存在的问题以及今后的主要发展方向.
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