Naslov
Use of membrane bioreactor for municipal and industrial wastewater treatment in Slovenia

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

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Skup
6th Conference of the Aseanian membrane society in conjunction with the 10th International membrane science and technology conference.

Mjesto i datum
Sydney, Australija, 24.11.2010. - 25.11.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
membrane bioreactor ; wastewater treatment ; memebrane filtration ;

Sažetak
The lack of fresh water is becoming an increasingly serious problem in many countries esespecially in the region which belongs to Slovenia. The situation is being aggravated further by the pollution of fresh water resources, such as lakes, rivers and water ground due to the discharging of untreated wastewater from industrial enterprises and municipal wastewater, which are the main source of water pollution. Also today, modern technology for water treatment, enables reuse of treated water. The use of a membrane bioreactor (MBR), based on the biodegradation of wastewater by activated sludge in combination with the physical process of membrane filtration, has become particularly interesting because of its number of advantages during municipal, as well as, industrial wastewater treatment, and has thus rapidly developed over the last decade. The membrane retains biomass solids and macromolecules and replaces the traditional sedimentation tank used in the conventional activated sludge process [1]. Among the other benefits, MBRs provide lower footprint, lower sludge production, rapid start-up of biological processes, and high-quality effluent production [2]. Complete solids’ removal, a significant physical disinfection capability, a very high degree of carbon and nitrogen compounds, and colour removal are the main advantages of MBR, which results in very high quality of treated water for further reuse [3, 4]. Therefore, MBR technology has been an attractive option for the treatment and reuse of municipal and industrial wastewaters from different industry sectors in Slovenia. The aim of work was to investigate the applicability of submerged MBR for municipal wastewater treatment and compare its efficiency with municipal wastewater treatment plant (WWTP) in Maribor, Slovenia. It can be concluded from the results, that the efficiencies being determined by the parameters, such as, total nitrogen and chemical oxygen demand, were satisfied and its from 90% to 99%, and compared to a municipal wastewater treatment plant the submerged MBR operates at lower costs. Second stage of our investigation was to clean a laboratory – prepared textile wastewater using MBR and to determine its effectiveness regarding wastewater treatment, and the removal of colour. In this research good performance of MBR wastewater treatment was shown. Monitoring and comparison of the efficiency between biological treatment and filtration indicated that ultrafiltration with a hollow-fibre module contributes to the additional improvement of wastewater quality. The experiments confirmed that a MBR pilot plant is suitable for the treatment of textile effluents, and allows for the reuse of water in the process.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA