Author's personal copy - Universidade de Santiago de Compostela

Author's personal copyA.I. Rodarte-Morales et al. / Biochemical Engineering Journal 66 (2012) 38–45 411.21.21.61.6Feeding rate (mg/L·d)0.90.60.30.0-0.3-0.61.2a0.90.60.30.0-0.3Degradaon rate(mg/L·d)Feeding rate (mg/L·d)1.41.21.00.80.60.40.2-0.6 0.01.2 1.2c1.41.21.00.80.60.40.20.01.2Degradaon rate(mg/L·d)Feedingrate (mg/L·d)1.00.80.60.40.20.01.00.80.60.40.2b0.00 10 20 30 40 50Time (days)Degradaon rate(mg/L·d)Feedingrate (mg/L·d)1.00.80.60.40.20.01.00.80.60.40.20.00 10 20 30 40 50 60 70 80 90 100Time (days)dDegradaon rate (mg/L·d)Fig. 1. Feeding and degradation rates of DCF in an STR with free pellets (a) and immobilized fungus (b) and in an FBR with a continuous air flow (c) and oxygen pulses (d).Symbols: feed medium (—), reactor medium port ( ), reactor effluent port ().1.41.41.21.2Feeding rate (mg/L·d)1.21.00.80.60.40.20.01.2a1.21.00.80.60.40.20.01.2Degradaon rate (mg/L·d)Feeding rate (mg/L·d)1.00.80.60.40.20.01.2c1.00.80.60.40.20.01.2Degradaon rate(mg/L·d)Feedingrate (mg/L·d)1.00.80.60.40.20.01.00.80.60.40.2b0.00 10 20 30 40 50Degradaon rate (mg/L·d)Feeding rate (mg/L·d)1.00.80.60.40.20.01.00.80.60.40.20.00 10 20 30 40 50 60 70 80 90 100dDegradaon rate (mg/L·d)Time (days)Time (days)Fig. 2. Feeding and degradation rates of IBP in an STR with free pellets (a) and immobilized fungus (b) and in an FBR with a continuous air flow (c) and oxygen pulses (d).Symbols: feed medium (—), reactor medium port ( ), reactor effluent port ().Table 1Residual concentration of pharmaceutical compounds onto biomass and polyurethane foam.Pharmaceutical concentrationSTR (pellets) STR (immobilized fungus) FBR (air) FBR (oxygen)Pellets (mgdrug/gbiomass)Vessel (mgdrug/cm 2vessel)Biomass (mg drug/gimmobilizedsupport)Vessel (mgdrug/cm 2vessel)Upper zone(mg drug/gbiomass)Bottom zone(mg drug/gbiomass)Upper zone(mg drug/gbiomass)Bottom zone(mg drug/gbiomass)DCF 0.000 2.7 E −7 15.97 3.0 E −3 0.000 0.031 0.002 0.001IBP 0.003 1.1 E −6 0.41 2.0 E −3 0.012 0.033 0.001 0.001NPX 0.012 3.0 E −6 5.32 1.0 E −3 0.049 0.066 0.260 0.009CBZ 0.014 4.7 E −6 1.43 4.0 E −4 0.017 0.013 0.002 0.001DZP 0.028 1.1 E −5 2.60 n.d. 0.034 0.029 0.010 0.006n.d. – Not detected.