化学抑尘技术治理无组织源扬尘污染研究进展

摘要

The situation of pollution prevention and control of unorganized sources such as bare surface of mine, construction site, bulk powder storage yard and town road are serious. Chemical dust suppression technology is generally recognized as one of the best ways to solve the pollution of dust from unorganized sources. The settling mechanism of particulate pollutants in the atmos-phere, the mechanism of chemical dust suppression technology, the classification of chemical dust suppressants and the main types of materials were expounded. The advantages and disadvantages of various dust suppressants and their application scope were analyzed. Compound dust suppressor is the main research direction of chemical dust suppression technology in recent years. This paper systematically summarizes the research achievements and latest progress of composite dust suppressants at home and a-broad in the past five years. It provides a reference for the further promotion and application of chemical dust suppression technol-ogy in the prevention and control of dust pollution from non-organized sources.%矿山、建筑工地裸露地表、露天散堆粉料堆场、城镇道路等无组织源扬尘污染防治形势严峻.化学抑尘技术是公认的解决无组织源扬尘污染的最佳方法之一.阐述了大气中颗粒态污染物沉降机理、化学抑尘技术作用机理、化学抑尘剂分类及主要材料类型;分析了各类抑尘剂的优缺点及适用范围.复合型抑尘剂是近几年化学抑尘技术的主要研究方向,系统总结了近五年来国内外复合抑尘剂的研究成果和最新进展,为化学抑尘技术的进一步推广应用于无组织源扬尘污染防治提供参考.