Water purification process
AssigneeCiba-Geigy Corporation
InventorsMarkus Thuer, Gerhard Stucki, Roland Boss
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Abstract
A process for purifying water, wherein the water, which is polluted by a mixture of halogenated compounds, preferably halogenated hydrocarbons, is passed through at least two reactors (treatment stages) packed with a porous material populated by one or more microorganisms, one of the reactors being operated under anaerobic conditions and being followed by an aerobically operated reactor; in this way, almost complete elimination of the halogenated compounds, preferably halogenated hydrocarbons, is achieved.
Claims15
A process for purifying water, which comprises passing the water, which is polluted by a mixture of halogenated hydrocarbons, present in a concentration range of 10 .mu.g/l-10 g/l of water, through at least two reactors (treatment stages) packed with a porous material populated by one or more microorganisms, one of the reactors being operated under anaerobic conditions and being followed by an aerobically operated reactor.
Dependencies are inferred from the claim text.