Department of Environmental Engineering, Faculty of Engineering, Changwon National University, 9, Sarim-dong Changwon, Kyungnam 641-773, Republic of Korea.
J Environ Manage. 2010 May;91(5):1161-8. doi: 10.1016/j.jenvman.2010.01.012. Epub 2010 Feb 9.
This experimental study was conducted to evaluate a membrane sequencing batch reactor (MSBR) with mixed culture photosynthetic bacteria for dairy wastewater treatment. The study was undertaken in two steps: laboratory and pilot scale experiments. In the first step, kinetics analysis of the MSBR was carried out in a laboratory scale experiment with influent COD concentration of 2500 mg/L. The pilot scale experiment was conducted to investigate the performance of the MSBR and checked the suitability of the kinetics for an engineering design. The kinetic coefficients K(s), k, k(d), Y and mu(m) were found to be 174-mg-COD/L, 7.42/d, 0.1383/d, 0.2281/d and 1.69/d, respectively. There were some deviations of COD removal efficiency between the design value and the actual value. From the kinetics estimation, COD effluent from the design was 27 mg/L while the average actual COD effluent from the experiment was 149 mg/L. Due to the different light source condition, the factors relating to light energy (i.e. L(f) and IR(%)) must be incorporated into engineering design and performance prediction with these kinetic coefficients of the photosynthetic MSBR.
本实验研究旨在评估采用混合培养光合细菌的膜序批式反应器（MSBR）处理乳品废水。研究分两步进行：实验室和中试规模实验。在第一步中，在实验室规模实验中用 2500mg/L 的进水 COD 浓度进行 MSBR 的动力学分析。中试规模实验用于研究 MSBR 的性能并检查动力学是否适合工程设计。动力学系数 K(s)、k、k(d)、Y 和 μ(m) 分别为 174-mg-COD/L、7.42/d、0.1383/d、0.2281/d 和 1.69/d。设计值和实际值之间的 COD 去除效率存在一些偏差。根据动力学估算，设计的 COD 出水中为 27mg/L，而实验的平均实际 COD 出水中为 149mg/L。由于光源条件不同，与光能有关的因素（即 L(f) 和 IR(%)）必须与光合 MSBR 的这些动力学系数一起纳入工程设计和性能预测中。
