They do not provide treatment to improve water quality, though some are attached to a media filter bank to remove pollutants.

Titan were then awarded another contract to remove pollutants from the wreck.

The other main method used by the city to remove pollutants is the addition of pathogen-consuming bacteria.

The lifetime for removing pollutants may be short.

Sold as air cleaners, they are not always safe and effective in removing pollutants.

Alternatively, the homeowner can install a filter system designed to remove pollutants.

To produce drinking water, a third step would be needed to remove remaining pollutants.

Most phytotechnology has been focused on the abilities of plants to remove pollutants from the environment.

Calcium from coral sources needs to be refined to remove pollutants of the source environment.

Artificial reed beds are used as a method of removing pollutants from grey water.