If only want to remove sand, rust, without considering removing encrustation, bacteria can use water purification devices.

如果只是想去除泥沙，铁锈，而不考虑去除水垢，细菌，可以用净水器。

youdao

Electric kettle, after a period of time without burning out of the water there is rust taste, how to remove?

电热水壶，经过一段时间，不再烧出的水有铁锈的味道，如何删除？

youdao

How can I remove the rust from the iron door?

我怎样才能把铁门上的锈除掉呢？

youdao

In the modern world, some hope to use green rust to remove toxic metals and radioactive elements from the environment.

MSN: What green rust did long ago to the big blue ocean