简易净水器 净水不简单

• 作 者: 张现礼
• 机 构: 山东省平邑县平邑镇镇北完小,
• 出 处: 农村青少年科学探究
• 发表日期: 2015年10期
• 关键词: 三四 特别提示 絮凝作用 石英沙 程中 程及

自然界的水,总是或多或少地含有一些杂质,带有一定程度的浑浊或异味。学习了水的净化之后,小亮就利用课余时间仿照课本上的图示(如下图)制作了一个简易净水装置,然后在自家周围的池塘里取了大半桶水,开始了水的净化实验。但是,实验进行了三四次,每次经过“净化”的水都依然比较浑浊,当他继续进行实验的时候,发现净水装置已经基本不起作用了。因此,他开始怀疑课本上介绍的装置是不是有问题。

Water in nature always contains some impurities more or less, with a certain degree of turbidity or odor. After studying the purification of water, Xiao Liang made use of spare time to imitate the text on the icon (below) to make a simple water purification device, and then took a bucket of water in the pond around her home to start the water purification experiment . However, the experiment was conducted three or four times, and the water remained “turbid” after each pass. When he continued the experiment, he found that the water purifier had basically failed to work. So he began to wonder whether the device introduced in the textbook was a problem.