净水技术2025，Vol.44Issue(12)：1-8,137,9.DOI:10.15890/j.cnki.jsjs.2025.12.001
天然高分子絮凝剂在污泥脱水中的研究现状与应用原理
Application Status and Principle of Natural Polymer Flocculants in Sludge Dewatering
摘要
Abstract
[Objective]The paper points out problems such as high sludge moisture content and high treatment costs.It outlines that the coagulation/flocculation process is an effective pre-treatment technology for improving sludge dewatering performance and achieving rapid separation of sludge and water.Traditional coagulation/flocculants have the risk of secondary pollution during use,while natural polymer flocculants are environmentally friendly,efficient,and have significant research value and application prospects.[Methods]This review summarizes the current research status,development trends,and application status of natural polymer flocculants in sludge dewatering,and discusses in detail the application principles of natural polymer flocculants in sludge dewatering from aspects such as the water morphology and distribution before and after conditioning the sludge,the main components,and the changes in flocs and sludge cakes.It also comprehensively compares the applicability of natural polymer flocculants with traditional flocculants from aspects such as basic characteristics and action mechanisms,technical performance,environmental and economic analysis,current development status and future trends,and systematically sorts out the mechanism and characteristics of the combined conditioning technology of natural polymer flocculants with other chemical agents.This provides a reference for the optimization direction and future trends of the combined conditioning technology.[Results]With the deepening of environmental protection concepts,water treatment agents such as flocculants are developing towards green and efficient directions.Natural polymer flocculants have simple operation,high efficiency,easy regeneration,no secondary pollution,wide application range,and are expected to become the mainstream development direction in the field of water treatment in the future.[Conclusion]Natural polymer flocculants should have excellent application performance and broad development space in conditioning sludge dewatering.Developing new,green,and environmentally friendly natural polymer flocculants for improving dewatering efficiency and ensuring water safety is undoubtedly of significant scientific and practical importance.关键词
污泥脱水/混凝/絮凝/天然高分子絮凝剂/脱水药剂Key words
sludge dewatering/coagulation/flocculation/natural polymer flocculant/dewatering chemical分类
资源环境引用本文复制引用
LIU Fei,HU Pan,ZOU Yong..天然高分子絮凝剂在污泥脱水中的研究现状与应用原理[J].净水技术,2025,44(12):1-8,137,9.基金项目
国家自然科学青年基金(52400169) （52400169）
中国博士后科学基金第76批面上资助(2024MD764007) （2024MD764007）
陕西省科学技术厅青年项目(2025JC-YBQN-611,2024JC-YBQN-0082) （2025JC-YBQN-611,2024JC-YBQN-0082）
