国内绿色缓蚀阻垢剂的研究进展

RESEARCH PROGRESS OF ENVIRONMENTFRIENDLY SCALING-CORROSION INHIBITOR IN CHINA

使用磷系药剂处理循环水存在引起水体富营养化的问题,而聚羧酸类等的无磷聚合物由于生物可降解性差,对环境也不友好。面对日益严格的水污染物排放标准,开发无磷非氮,具有良好的生物可降解性的水处理药剂已成为水处理行业的发展方向之一。介绍了近年来国内对聚环氧琥珀酸和聚天冬氨酸及其衍生物和复合配方,以及其它具有良好生物降解性的物质在缓蚀阻垢性能方面的研究,并对未来绿色阻垢缓蚀剂的发展方向提出了建议。

Phosphate-based chemicals cause water eutrophication when used in circulating cooling water system.However,phosphorus-free polymers such as polycarboxylate-based chemicals are also found to be unfriendly to the environment due to their poor biodegradability.With increasingly stringent discharge standards for water pollutants,the development of phosphorus-free and nitrogen-free water treatment chemicals with favorable biodegradability has become one of the development directions for water treatment industry.This paper introduces the studies on scaling-corrosion inhibiting performance of polyepoxysuccinic acid(PESA)and polyaspartic acid(PASP),their derivatives,and composite formulations,as well as other chemicals with good biodegradability in China.Suggestions on future development of green scaling-corrosion inhibitors are also put forward.