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

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

Sunday could remove the rust of one week.

星期天能去掉一个星期的锈迹。

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