Journal of East China Normal University(Natural Science) ›› 2024, Vol. 2024 ›› Issue (1): 9-16.doi: 10.3969/j.issn.1000-5641.2024.01.002

• Evaluation and Restoration for Aquatic Environment • Previous Articles     Next Articles

A review on the application of slow-release oxygen materials in the remediation of polluted rivers and lakes

Yang CAO1, Dungang GU1,*(), Guanghui LI1, Minsheng HUANG2,3, Wenhui HE4   

  1. 1. School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
    2. School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
    3. Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China
    4. Shanghai Taihe Water Technology Development Co. Ltd., Shanghai 201702, China
  • Received:2023-02-24 Accepted:2023-04-23 Online:2024-01-25 Published:2024-01-23
  • Contact: Dungang GU E-mail:dgu@sues.edu.cn

Abstract:

Oxygen-releasing materials are often used in the treatment and restoration of urban waters as an important method to enhance dissolved oxygen. The development of materials with slow-release property can improve the durability and stability of oxygen release in practical engineering. This paper reviews the preparation methods and oxygen release performance of the slow-release oxygen materials reported in recent years. Moreover, the effects and mechanisms of slow-release oxygen materials on the occurrence, migration, and transformation of pollutants such as nutrients in sediments and overlying water of rivers and lakes are reviewed. Finally, prospects and suggestions for the application of slow-release oxygen materials in the remediation of rivers and lakes are proposed.

Key words: slow-release oxygen materials, preparation, sediment-water interface, nutrients

CLC Number: