燃煤电厂含煤废水处理工艺研究

Study on Treatment Technology of Coal-Bearing Wastewater from Coal-Fired Power Plants

燃煤电厂含煤废水悬浮物含量高、浊度高、水质水量情况变化较大,不宜与其他废水混合处理。文章根据含煤废水水质特点,对化学混凝、电絮凝、磁混凝工艺进行研究,分析了各工艺的发展应用状况与其优势、不足,提出燃煤电厂含煤废水处理工艺须根据废水水质水量情况与发电厂环境、经济等情况,选择最适用的方法和装置进行高效处理与循环利用。 The coal-bearing wastewater of coal-fired power plants is not suitable for mixed treatment with other wastewater because of its high content of suspended matter, high turbidity and great variation of water quality and quantity. According to the water quality characteristics of coal-bearing wastewater, this paper studies the chemical coagulation, electric flocculation and magnetic coagulation processes, analyzes the development and application status of each process and its advantages and disadvantages, and proposes that the coal-bearing wastewater treatment process of coal-fired power plants should be based on the quality and quantity of wastewater and the environment and economy of the power plant, and select the most suitable methods and devices for efficient treatment and recycling.