Procedure and removal system organic micropollutants in wastewater by an enzymatic ceramic membrane reactor

摘要

Method and system for eliminating organic micropollutants in wastewater by means of a ceramic-membrane enzyme reactor. The invention relates to a method and a system for eliminating organic micropollutants present in secondary effluents from wastewater treatment plants or industrial effluents by means of ligninolytic enzymes of the peroxidase or laccase type, in ultrafiltration or nanofiltration ceramic-membrane enzyme reactors. Further to a filtration pre-treatment for minimising the colloid concentration, the water to be treated is introduced into the reactor where it meets the free peroxidase or laccase enzyme. The outflow of the reactor is pumped to the ceramic membrane, separating into two flows. The retention flow containing the enzyme recirculates back to the reactor. The permeate flow constituting the effluent of the membrane enzyme reactor is free of micropollutants and can be discharged into the aquatic environment.