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Line 1. Membrane processes applied to wastewater treatment. Membrane bioreactors
This line of research aims to study the processes of biomass separation from treated water in the secondary treatment of municipal and industrial wastewaters. It includes both conventional membrane bioreactors, which use ultrafiltration or microfiltration, and osmotic membrane bioreactors, which use direct osmosis for the separation of biomass.
In both cases, the fouling of the membranes and the cleaning protocols to be followed are studied, characterizing the mixed liquor physically, chemically and biologically. The so-called microbial soluble products, mainly responsible for fouling, are analyzed and the generation of these substances is correlated with the operating conditions.
In the particular case of membrane osmotic bioreactors, the influence of the reverse passage of salts on the biomass and the efficiency of the system are studied, also studying different draw solutions, which are solutions with high osmotic pressure responsible for the passage of water through the membrane. These techniques ensure a very good quality of the purified water.
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