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Waste Disposal & Sustainable Energy
Waste Disposal & Sustainable Energy  2019, Vol. 1 Issue (2): 99-115    DOI: 10.1007/s42768-019-00007-x
    
污泥的不同热处置产物中磷回收的研究综述
Xiangdong Meng1, Qunxing Huang1, Jie Xu1, Huaping Gao2, Jianhua Yan1
1.State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, China  2.College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, China
A review of phosphorus recovery from different thermal treatment products of sewage sludge
Xiangdong Meng1, Qunxing Huang1, Jie Xu1, Huaping Gao2, Jianhua Yan1
1.State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, China  2.College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, China
 全文: PDF 
摘要： 磷（P）作为生物体不可缺少的元素，对农作物的生长具有不可替代的作用。自然界中磷的主要来源是不可再生的磷矿，其储量面临着枯竭的危险。城市污泥作为一种富含磷的固体废弃物，逐渐成为一种主要的可再生磷资源。磷的有效回收与污泥无害化处理相结合，不仅可以缓解磷矿资源短缺的危机，也可以减少污泥对环境的危害。本文综述了热处理技术在城市污泥处理中的应用。该技术除了减小废弃物体积、分解有机污染物、产生有价值的副产品等优点外，还可以显著促进磷的循环利用。研究表明，热处理（焚烧、热解和水热处理）可以使产品中的磷富集，并改变其形态，以提高生物可利用率。不同热处理产品的理化性质和磷的形态是不同的。磷的转化和迁移会影响后续磷回收和再利用的效率。同时，本文对几种常用的磷回收方法（湿法提取法、热化学法和电化学法）进行了比较，进一步总结了各种方法的优缺点和适用条件。本文综述了近年来城市污泥磷回收技术的研究最新进展，指出了城市污泥中磷的资源化研究面临的新挑战和技术缺口，为今后实现城市污泥中磷高效、经济和生态回收的研究奠定了基础。
关键词： 城市污泥;  热处理;  磷回收    
Abstract: Phosphorus (P) is an indispensable element of living organisms and plays an irreplaceable role in the growth of crops. As a non-renewable element, the reserves of phosphorus rock, the primary source of phosphorus in nature, are facing the danger of exhaustion. As a phosphorus-rich solid waste, sewage sludge has gradually become a main renewable phosphorus resource. The combination of effective recycling of phosphorus and innocuous disposal of sewage sludge can not only alleviate the crisis of phosphate rock resources shortage but also reduce the environmental hazards of sewage sludge. This study reviewed the application of thermal treatment in sewage sludge disposal. Besides the advantages of reducing waste volume, decomposing organic pollutants, generating valuable byproducts, it can also significantly promote the recycling of phosphorus. Studies have shown that thermal treatment (incineration, pyrolysis, and hydrothermal) can enrich phosphorus in the products and transform the speciation of phosphorus to increase the bioavailability. The physical and chemical properties of different thermal treatment products and the speciation of phosphorus are different. The transformation and migration of phosphorus affect the efficiency of subsequent phosphorus recovery and reuse. At the same time, this study compared several general phosphorus recovery methods (wet extraction, thermochemical, and electrochemical methods), and further summarized the advantages and disadvantages of various methods and application conditions. This review summarizes recent advances in phosphorus recovery from sewage sludge, identifies challenges and knowledge gaps, and provides the foundation for future research aimed at achieving efficient, economic, and eco-friendly reclamation of phosphorus in sewage sludge.
Key words: Sewage sludge    Thermal treatment    Phosphorus recovery
收稿日期: 2019-06-19 出版日期: 2019-11-01
通讯作者: Qunxing Huang     E-mail: hqx@zju.edu.cn
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引用本文:

Xiangdong Meng, Qunxing Huang, Jie Xu, Huaping Gao, Jianhua Yan. A review of phosphorus recovery from different thermal treatment products of sewage sludge. Waste Disposal & Sustainable Energy, 2019, 1(2): 99-115.

链接本文:

http://www.zjujournals.com/wdse/CN/10.1007/s42768-019-00007-x    或    http://www.zjujournals.com/wdse/CN/Y2019/V1/I2/99

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