Membrane Filtration of Wastewater Split Flows originating from Paper Industry and Biological Wastewater Treatment of the generated Membrane Concentrates
AbstractWastewater effluents from deinking- and TMP processes were taken and were concentrated in 2 stages consisting of ultra- and nanofiltration. Futher more, the concentrates were biologically treated with a single aerobic and a hybrid anaerobic-aerobic process. With a continuous anaerobic reactor and an aerobic SBR reactor experiments were conducted to study the variations in hydraulic retention time (HRT), food to biomass ratio (F/M) and wastewater concentrate. For the deinking wastewater concentrate, an overall average COD elimination of 51 % and 57 % was achieved for aerobic and anaerobic-aerobic treatment, respectively. Single stage aerobic treatment of TMP wastewater concentrate had an mean COD elimination efficiency of 61 % and the hybrid anaerobic-aerobic treatment yielded 73 %. The temperature in the aerobic biological SBR reactor was kept stable at 30?°C with an F/M ratio between 0.01 and 0.5 gBOD5/(gSS · d).
TEWS, Sebastian; MINKE, Ralf; STEINMETZ, Heidrun. Membrane Filtration of Wastewater Split Flows originating from Paper Industry and Biological Wastewater Treatment of the generated Membrane Concentrates. gwf Wasser | Abwasser, [S.l.], v. 152, n. Special 1, p. 70 - 77, juni 2013. ISSN 0016-3651. Verfügbar unter: <http://ojs.di-verlag.de/index.php/gwf_wa/article/view/1166>. Date accessed: 30 mai 2020.