摘要：

随着世界人口的增加及工业的快速发展，水资源利用面临越来越大的挑战。为缓解水资源短缺问题，各行各业广泛应用循环冷却水系统。伴随着冷却水使用过程的不断循环与浓缩，水中的矿物质含量不断增加，从而引起设备管道结垢。垢的存在不仅降低了传热效率与水流速度，还会产生垢下腐蚀，严重影响设备的性能和使用寿命，导致生产成本极大增加。添加阻垢剂是普遍认为的防止结垢最直接和有效的方法。传统的阻垢剂会造成二次污染，因此无毒、高效且降解性良好的绿色阻垢剂引起研究者的关注。对近年来绿色阻垢剂在国内外的研发应用现状进行了综述，总结了阻垢剂对钙垢的阻垢性能及机理。同时，对绿色阻垢剂的发展方向进行一定探索与展望。

关键词: 循环冷却水, 绿色阻垢剂, 生物降解, 改性

Abstract:

Water resources utilization is facing an increasing challenge with the increase of world population and the rapid development of industry. In order to alleviate the water shortage problem, recirculating cooling water systems are widely used in various industries. The mineral content in the water increases with the continuous circulation and concentration of cooling water, which causes scaling of equipment and pipes. The presence of scale not only reduces the heat transfer efficiency and water flow rate, but also produces underdeposit corrosion, which seriously affects the performance and service life of equipment and leads to a great increase in production costs. It is generally considered that the addition of scale inhibitors is the most direct and effective method to prevent scaling. Nowadays, non-toxic, efficient and well-degradable green scale inhibitors have attracted the attention of researchers, owing to the secondary pollution caused by traditional scale inhibitors. The development and application of various green scale inhibitors at home and abroad in recent years and their scale inhibition performance and mechanism for calcium scales were reviewed. Meanwhile, the development direction of green scale inhibitors was prospected.

Key words: recirculated cooling water, green scale inhibitor, biological degradation, modification

中图分类号: 

• TQ085+.4