| Summary: | 碩士 === 國立暨南國際大學 === 土木工程學系 === 91 === Biological kinetic parameters are conventionally solved by operating continuous reactor under different SRT, influent substrate concentration and other operational factors combinations. It is time consumption and hard to obtain important information immediately. AUR、OUR and NUR batch experiments can be used to quickly estimate kinetic, stoichiometric parameters and active biomass of activated sludge by substrate uptake rate and reactive stoichiometry of electronic acceptor. This method is a useful tool for designs, operation and simulations of wastewater treatment plant.
This study explored the characteristics of B-SBR under operational condition of F/M=0.078 (low) and 0.118 (medium) mg COD/mg MLSS-d and schemed a series of batch tests to explore biological kinetics of carbon and nitrogen, to establish kinetic models and to estimate kinetic (ηg、KS、KNO、KNH、、、bH), stoichiometric parameters (YH、YA) of ASM1 and active biomass (XB,H(0), XB,A(0)).
Results of this study showed that removal efficiencies of COD, TN and P of B-SBR under operational condition of F/M= 0.118 mg COD/mg MLSS-d were higher than those of F/M= 0.078 mg COD/mg MLSS-d. And, following important inferences were obtained by OUR, AUR and NUR batch tests. (1). ATU inhibitor would inhibit nitrification absolutely. (2). Adding SNH into system would increase activity of autotrophic bacteria absolutely. (3). Oxygen consumption by XB,H in obtaining energy was maximum. (4). the higher the concentrations of SNH、SS and SNO were, the higher the SOUR, SAUR and SNUR were. (5). SOUR, SAUR and SNUR can be used to explore biological kinetics of carbon and nitrogen, establish kinetic models and predict the variations of carbon and nitrogen in wastewater treatment plant. (6). In OUR+ATU tests, YH of low and medium F/M ratio conditions were 0.77 and 0.82 g cell COD /g COD oxidized respectively. (7). Combining OUR and OUR+ATU tests, YA of medium F/M ratio condition was 0.56 g cell COD /g COD oxidized. (8). Combining OUR and NUR tests, ηg of low and medium F/M ratio conditions were 0.51 and 0.52 respectively. (9). In OUR+ATU tests, KS of low and medium F/M ratio conditions were 75.7 and 10.2 mg/L respectively. (10). In NUR tests, KS and KNO of low and medium F/M ratio conditions were 168, 48.4 mg/L and 15.4, 8.69 mg-N/L respectively. (11). In long time OUR+ATU tests, , bH, XB,H(0) of low and medium F/M ratio conditions were 2.13 d-1, 0.1 d-1, 424 mg COD/L and 4.47 d-1, 0.22 d-1, 912 mg COD/L respectively. (12). In long time AUR tests, , bH, XB,H(0) of low and medium F/M ratio conditions were 2.1 d-1, 0.1 d-1, 447 mg COD/L and 3.5 d-1, 0.17 d-1, 451 mg COD/L respectively. (13). In long time NUR tests, , bH, XB,H(0) of low and medium F/M ratio conditions were 1.55 d-1, 0.07 d-1, 135 mg COD/L and 2.32 d-1, 0.11 d-1, 691 mg COD/L respectively. (14). Combining long time OUR and OUR+ATU tests, and XB,A(0) of low F/M ratio conditions were 0.97 d-1 and 0.52 mg COD/L. (15). In long time NPR tests, and XB,A(0) of low and medium F/M ratio conditions were 1.47 d-1, 28 mg COD/L and 1.27 d-1, 249 mg COD/L respectively.
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