首页>英语角 > 听力 > 美音 > 课 程 > 化学 > 大四>How to Remove Fluoride From Water
How to Remove Fluoride From Water
Question
Reverse osmosis systems are
提交
00:00
00:00
播放重放快退快进
How to Remove Fluoride From Water
音量
Most people are aware that there is a controversy surrounding public fluoridation of drinking water. There are several ways to obtain drinking water without fluoride.
Reverse Osmosis Filtration

This is used to purify several types of bottled water, so some bottled waters are unfluoridated. Reverse osmosis systems are generally unaffordable for personal use.
Activated Alumina Defluoridation Filter

These filters are used in locales where fluorosis is prevalent. They are relatively expensive and require frequent replacement, but do offer an option for home water filtration.
Distillation Filtration

There are commercially available distillation filters that can be purchased to remove fluoride from water.

Some of the water purification methods that Do NOT Remove Fluoride are:
Brita, Pur, and most other filters
Boiling Water
Freezing Water
To Reduce Fluoride Exposure:
Don't take fluoride supplements
Read labels on bottled beverages
Consider using unfluoridated toothpaste
Avoid drinking black or red tea
Be wary of tinned fish and canned food items
Avoid black or red rock salt or items containing black or red rock salt
Avoid using chewing tobacco
Avoid long term use of medication that contains fluorine
Thanks for watching. To learn more, visit About.com.
视频文本已隐藏,本文本来自网络或网友仅供参考
显示视频文本

Discuss

0 comments
characters remainingSubmit
反馈