Abstract
The textile industry is an industry that consumes large amounts of water during production, contains various chemicals in its wastewater, conventional treatment methods are insufficient to reduce the wastewater pollution level, and has colloidal substances and color problems. Membrane bioreactor systems provide high efficiency in the treatment of textile wastewater and dyestuff removal. Removal of dyestuffs and turbidity in real textile wastewater by using a laboratory-scale membrane bioreactor system was studied. Chemical precipitation was not applied before the biological treatment for the removal of color and other pollutant parameters. A hollow fiber microfiltration membrane module was used in the system. Then a combination with an active carbon filter was created to take the color removal to a higher level. The development of the microorganism composition adapted to the textile industry was observed in the biological reactor. The system was operated with an endless sludge age and a hydraulic retention time of 24 hours. Color measurement transparency index parameter DFZ (DurchsichtsFarbZahl) was measured in a spectrophotometer at wavelengths of 436, 525, and 620 nm (nanometers) according to EN ISO 7887 standards. In the microfiltration permeate water, the color removal were found in 436 nm: 91-95%, 525 nm: 94-98%, 620 nm: 96-99%, and in activated carbon permeate water, the color removal in 436 nm: 96-99% at 525 nm: 95-99%, 620 nm: 96-99%, respectively. Due to the physical separation of the membrane, which is the simplest definition, high efficiencies in color removal have been achieved in the system. The activated carbon system combined with the membrane was found higher efficiency in color removal than the microfiltration output.
Highlights
The rapid increase in industrial establishments, which play an active role in every aspect of our lives, and the increase in population, has gradually reduced the access to consumable water resources over the years
Our study aims to remove real, dyed wastewater generated in situ with the Membrane Bioreactors (MBR) system [6]
A laboratory-scale aerobic membrane bioreactor system was used in the studies, and this reactor system was made of aquarium glass
Summary
The rapid increase in industrial establishments, which play an active role in every aspect of our lives, and the increase in population, has gradually reduced the access to consumable water resources over the years. Membrane Bioreactors (MBR) are formed by using immersion-type membranes in the biological reactor or external membranes installed separately from the biological treatment system [7] These systems are environmentally friendly, and while performing biological purification with the help of microorganisms, they will help treat wastewater bypassing the biologically treated water through the membrane. Application areas of activated carbon are removing organic matter, color, odor, taste, and chlorine in the water. The textile industry causes high amounts of wastewater, especially in washing processes. Unless a robust treatment technology is applied, it will cause a high concentration of pollutants in the receiving environment [3]. The treatment of textile industry wastewater containing dyestuffs with membrane technologies has provided high efficiency in the effluent and made it possible to recover water in industries. Our study aims to remove real, dyed wastewater generated in situ with the MBR system [6]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
