Naslov
Textile wastewater treatment with membrane bioreactor

Autori
Petrinić, Irena ; Korenak, Jasmina ; Simonič, Marjana ; Čurlin, Mirjana

Izvornik
Tekstilec (0351-3386) 53 (2010), 10-12; 273-284

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
reactive azo dyes; membrane bioreactor; wastewater treatment; activated sludge

Sažetak
The use of a membrane bioreactor (MBR) has been rapidly developed over the last decade. It is based on the biodegradation of wastewater by activated sludge in a combination with the physical process of membrane filtration and has become of particular interest because of its numerous advantages during wastewater treatment. The aim of this work was to treat laboratory–prepared wastewater using MBR, determine its effectiveness regarding wastewater treatment, and to establish the operational parameters and system stability which would provide optimum treatment. Operational parameters, such as inlet wastewater flow, concentration of oxygen within a bio-unit and the monitoring of ultrafiltration pressure, were adjusted during the treatment process. By measuring individual parameters and the implementation of chemical analysis, the satisfactory functioning of an MBR system was demonstrated because the efficiency value regarding COD reduction and the elimination of dyes, expressed as SAC (Spectral Absorption Coefficient), reached from 70 to 90% for both parameters. It is clear from the results that the removal efficiency of COD was 90%, and the removal efficiency of the dyes reached 97%, respectively. It can be concluded that MBR technology, as a combination of biological treatment with physical treatment, is very effective for textile wastewater treatment.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA