The use of iron in removing arsenic from water.

It may be a useful tool in removing arsenic from tube well water in Bangladesh.

Activated alumina is an adsorbent that effectively removes arsenic.

A water treatment plant was set up to remove uranium, radium and arsenic from the mine water.

The project was a system for removing arsenic from groundwater in a geology that runs from Nepal to Bangladesh.

Lime softening can also be used to remove iron, manganese, radium and arsenic from water.

In addition to flocculation to remove iron and arsenic, the plant uses nanofiltration to soften the water.

Before construction could begin, the ground below literally had to be washed to remove cyanide and arsenic.

That's the figure the Environmental Protection Agency came up with when it was trying to decide how far to go in removing arsenic from drinking water.