硅酸水垢及防治方法研究进展
发布时间：2018-09-05 20:55
【摘要】：在水资源再生利用过程中水中硅酸会沉淀在设备管道内壁或膜表面形成硅垢,影响设备的正常运行。硅垢的主要成分为无机硅酸盐和无定形SiO_2,是最难处理的水垢。抑制硅垢的方法有设备内添加阻垢剂和设备外预处理降低硅酸浓度等。设备内添加阻垢剂的方法又包括提高硅酸溶解度法和投加分散剂法;设备外预处理降低硅酸浓度的方法包括超滤膜法、反渗透膜法、絮凝法、离子交换法等。
[Abstract]:In the process of water resources recycling, silicic acid in water will precipitate on the inner wall or film surface of the equipment pipeline, which will affect the normal operation of the equipment. The main components of silicon scale are inorganic silicate and amorphous SiO_2, are the most difficult to deal with the scale. The methods of inhibiting silicon scale include adding scale inhibitor in the equipment and pretreating outside the equipment to reduce the concentration of silicic acid. The methods of adding scale inhibitor in the equipment include improving the solubility of silicic acid and adding dispersant, and the methods of reducing the concentration of silicic acid by pretreatment outside the equipment include ultrafiltration membrane method, reverse osmosis membrane method, flocculation method, ion exchange method and so on.
【作者单位】： 内蒙古大学生态与环境学院;呼和浩特民族学院;
【基金】：国家自然科学基金项目(21666025) 内蒙古自然科学基金项目(2014MS0202)资助
【分类号】：X703
，
本文编号：2225438
[Abstract]:In the process of water resources recycling, silicic acid in water will precipitate on the inner wall or film surface of the equipment pipeline, which will affect the normal operation of the equipment. The main components of silicon scale are inorganic silicate and amorphous SiO_2, are the most difficult to deal with the scale. The methods of inhibiting silicon scale include adding scale inhibitor in the equipment and pretreating outside the equipment to reduce the concentration of silicic acid. The methods of adding scale inhibitor in the equipment include improving the solubility of silicic acid and adding dispersant, and the methods of reducing the concentration of silicic acid by pretreatment outside the equipment include ultrafiltration membrane method, reverse osmosis membrane method, flocculation method, ion exchange method and so on.
【作者单位】： 内蒙古大学生态与环境学院;呼和浩特民族学院;
【基金】：国家自然科学基金项目(21666025) 内蒙古自然科学基金项目(2014MS0202)资助
【分类号】：X703
，
本文编号：2225438
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