| Abstract |
| The objective of this study was to investigate the charateristics of flux. transmembrane pressure (TMP), and substrate reduction for biological wastewater treatment processes coupled with menbrane filteration (MF) and to evaluate the comparative performance of aerobic process/MF. anaerobic-aerobic (ANO) process/MF, and ANO-granular activated carbon (GAC) filter/MF processes on the reclamation and reuse of wastewater. The characteristics of real wastewater used for this study was: COD 5.5-14.8 mg/l. SS 0.3-16.0mg/l, T -N 3.647-13.415mg/l. T -P 0.114-3.217mg/L. As a result. the flux of the MF decreased rapidly within about 2 min of filtration time regardless of TMP and the water qualities treated by the processes. This initial low flux resulted in the clogging of the membrane pore due to particular and organic matters in the effluent from the processes. The substrate removal rate of the MF process increased with decreasing TMP regardless of pollutants. The above results showed that the optimum TMP was 0.4 bar for the processes. The results suggest that the GAC bed after the ANO process is needed to decrease TMP and to obtain the reuse water with a good quality. |
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| Key Words |
| Membrane filtration, TMP, Flux, Substrate reduction, Anaerobic/aerobic process, GAC |
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