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Thesis

Spanish

ID: <

http://hdl.handle.net/10251/171184

>

Where these data come from
Design of a dual ultrafiltration-adsorption system for the treatment of currents from a process in the textile industry. Design flow rate 10 m³/day

Abstract

[EN] The textile industry is one of the most polluting industrial sectors due to its emission into the environment of large volumes of wastewater generated in its processes, in which chemicals and other compounds are applied. In addition, given the dispersion of the sector, effluents with very different compositions are produced. In Spain, these currents are not usually segregated, so the final tributaries are usually highly coloured, have a high COD and high conductivity. To solve this problem, it is proposed to design a dual treatment with UF membranes and activated carbon, in which a current of 10 m3 /day of model composition from the textile sector is treated. A high reduction in COD and effluent colour is expected, along with a low salt retention, obtaining a current that must undergo subsequent NF/RO treatments for possible reuse, although it can be used as cleaning water and at some points of the textile process. To this end, the production of membranes with activated carbon integrated in their composition will be addressed and compared with the dual system UF+AC. In this project, in a first step, UF membranes with activated carbon nanoparticles will be manufactured and characterized, indicating the rejection indices and permeate coefficients they present. Subsequently, in a second step, the active carbon used will be characterised by the determination of isotherms and the adsorption column will be designed. Finally, the dual system (UF+AC) which will treat the textile effluent will be posed in a first stage of UF, and then the permeate from the UF process will be treated with the designed AC column. The hybrid process will be designed, and the facility budgeted. TFGM

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