澳门城市供水系统的水质保障措施

如何根据实际条件，选择经济实用的技术来保障甚至提高供水水质，已经成为中小规模城市供水系统共同面临的问题。澳门自来水有限公司多年来在这方面积累了一定的经验。根据水质和工艺情况，选用合适的助凝剂，有效地提高了对藻类的去除并显著降低了出厂水浊度。另外，较高的管网余氯有效地控制了管网水水质。多年运行实践表明，出厂水浊度可以稳定地控制在0．1NTU左右，管网末梢细菌总数基本低于10个／mL。

Water Quality Guarantee Measures for Urban Water Supply System in Macao Area

How to select economical and practical technology to ensure drinking water quality according to local condition has become an urgent problem to be solved in small- and medium-sized cities.Macao Water Supply Company has won some experiences for so many years.Use of suitable flocculating aid according to raw water quality and existing water treatment technology has effectively enhanced algae removal and reduced finished water turbidity.Furthermore,higher concentration of free chlorine in distribution network has ensured water quality.The operating practice shows that the finished water turbidity is controlled around 0.1 NTU and the bacteria count in the end of pipeline is well controlled less than 10 CFU/mL for so many years.