自来水

作者:水商网
自来水含义:

自来水,是指水厂将取自湖泊、河流、水井或水库等水源的淡水,经过混凝、沉淀、过滤、消毒等净水工序,最后由机泵透过输配水管道供给用户的水。一些国家和地区规定,自来水必须符合国家生活饮用水卫生标准,而可直接生饮,否则要经过煮沸才可饮用。

还有一种经海水淡化而成为饮用水,先进国家都有开发海水淡化厂,但因处理成本较高,大多只用于缺乏水源的地方。

自来水存在的安全问题:

(1)氯消毒问题;(2)微量有害物质;(3)塑胶微粒;

自来水在疏松过程中存在的问题:

(1)水管锈蚀;(2)停水;(3)分区供水;(4)漏水;(5)水表故障;
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