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长期以来,我国城市自来水的水质普遍较差,原因是多方面的,就目前而言水处理问题是其中的一个重要方面。城市自来水厂所用水处理剂,主要是混凝剂和消毒剂。近代科学研究表明,传统的铝盐混凝剂和氯消毒剂在卫生上都存在问题,它们既能净化水同时又会对自来水造成二次污染。近年来欧美国家自来水厂所用水处理剂,普遍改成了铁盐混凝剂,氯消毒改成了臭氧消毒。我国自来水厂现在仍采用液氯作消毒剂,混凝剂不仅仍普遍采用铝盐混凝剂,而且很大一部分铝混凝剂是用废铝灰为原料制成的,其本身的卫生质量就很差。为此,解决我国自来水厂的混凝剂问题显得更加迫切。1 研发背景随着人民生活水平的提高,饮水问题成为人们共
For a long time, the quality of tap water in our country is generally poor due to many factors. For the time being, water treatment is one of the most important aspects. Water treatment plants used in urban waterworks, mainly coagulants and disinfectants. Modern scientific research shows that the traditional aluminum salt coagulant and chlorine disinfectant in the health problems, they can not only purify the water at the same time it will cause secondary pollution of tap water. In recent years, water treatment chemicals used in waterworks in Europe and the United States have been widely changed into iron salt coagulants. Chlorine disinfection has been changed to ozone disinfection. China’s water plant is still using liquid chlorine as a disinfectant, coagulant is not only still commonly used aluminum salt coagulant, and a large part of the aluminum coagulant is made of waste aluminum ash as raw material, its own health quality Very poor. Therefore, it is even more urgent to solve the coagulant problem in our waterworks. 1 R & D Background With the improvement of people’s living standards, drinking water has become a total of people