A kinetic study on Mixed Cultures Photosynthesis Bacteria for Treatment of Dairy Wastewater in Membrane Sequencing Batch Reactor (MSBR)

摘要

The kinetic coefficients K_s, k, k_d Y and μ_m were found to be 174 mg-COD/1, 7.42 mg-COD/mg-MLVSS.d, 0.012 d~(-1), 0.17 mg-MLVSS/mg-COD.d and 1.26 d~(-1) respectively while the system was controlled under light intensity 6000±300 lux. Suitable pH was in range of 7.0-7.5 and ORP was controlled between -400 and -200 mV. The possible MLSS concentrations that could control to treat dairy wastewater with BOD concentration of 2000 mg/1 were 1200 and 2500 mg/1. Filtration time was set to be 3 hr at TMP 15 kPa. Membrane area required for the systems that have MLSS concentration of 1200 and 2500 mg/1 were 150 and 90 m~2 respectively.