Hydrodynamics of membrane bioreactors is described using residence time distribution function in bioreactors without activated sludge and in bioreactors with activated sludge. The obtained results were compared to the ideal model of continuous strirred-tank reactor, and theoretical cascade model of the reactor flow, in order to define differences between the real membrane bioreactor systems and the ideal conditions. The results of the average residence times show little deviation from the ideal model of continuous reactor if the membrane bioreactor operates without the activated sludge.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 14289942The membrane bioreactor integrates well the conventional activated sludge system and advanced membrane separation for wastewater treatment. Membrane Bioreactors (MBR) are used for processing in biotechnology but more specifically in wastewater treatment, where they have the potential to capture a significant share of the secondary waste-treatment process market. They can operate under normal conditions on a by-pass system, or can be submerged in the reactor’s vessel, where they work in-line and operate by means of vacuum suction at low trans-membrane pressure.
F.27 Contribution to preserving/protecting natural and cultural heritage
COBISS.SI-ID: 13559318Textile dye wastewater has always been cleaned by several useful techniques but, due to its complex composition, there is still no adequate universal cleaning process. The aim of the work was to clean a laboratory–prepared wastewater using MBR and to determine its effectiveness regarding wastewater treatment, and the removal of colour. It can be concluded that the values for certain parameters achieved the same value than those prescribed by regulations for discharging into water resources. A proper functioning of the MBR pilot plant was confirmed for the treatment of textile effluents.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 14578710The aim of the work was to clean a laboratory–prepared wastewater using MBR. The treatment performance of the system was determined through measurements of colour, chemical oxygen demand (COD), and conductivity, according to the Standard Methods. By measuring individual parameters and the implementation of chemical analysis, the satisfactory functioning of the MBR system, was demonstrated because the efficiency value regarding COD reduction and the elimination of dyes, expressed as SAC, reached from 70 to 90 % for both parameters.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 14418198The aim of this work was to investigate the applicability of submerged MBR for municipal wastewater treatment, and compare its efficiency with a wastewater treatment plant in Maribor, Slovenia. It can be concluded that the efficiencies being determined by the parameters, such as, total nitrogen and chemical oxygen demand, were satisfied. When compared to a municipal wastewater treatment plant the submerged MBR operates at lower costs. We also cleaned laboratory–prepared textile wastewater using MBR and determined its effectiveness regarding wastewater treatment, and the removal of colour.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 14699030