.,--

Figure 7.4 The time dependent response from the CAS or HPOAS system depicted in Figure 7.1 when subjected to the diurnal loading patterns shown in Figure 6.2. For comparison, the dashed curves represent the performance of a single CSTR with a volume of 250 m3. Average influent flow = 1000 m3/day. Average influent concentrations are given in Table 6.6. Biomass recycle flow = 500 m3/day; volume of each reactor = 50 m3; SRT = 10 days. Parameters are listed in Table 6.3. The dissolved oxygen concentration was held constant at 2.0 mg/L.