Services for treating and purifying water and waste water using a biological process implementing bioreactors having supports on which bacteria and other types of microorganisms develop for removing contaminants or other types of impurities, including contaminants and impurities that are hardly degradable

Bioreactors for the treatment of water and waste water having supports on which bacteria and other types of microorganisms develop for removing contaminants or other types of impurities, including contaminants and impurities that are hardly degradable; apparatus and installations for the purification of water and waste water using a biological process

The wording "HYDREX" has no meaning in a foreign language.

waste treatment chemicals for water and sludge treatment for domestic, municipal or industrial applications; chemicals for water and sludge treatment with a view to rendering them drinkable or for sanitizing them; waste water treatment chemicals industrial use; chemicals for water purification

CELLA POLYMER