Comett-Ambriz I, Gonzalez-Martinez S, Wilderer P
Institute for Water Quality Control and Waste Management, Technical University of Munich, D-85748 Garching, Germany.
Water Sci Technol. 2003;47(12):155-61.
Anaerobic reactor biowaste effluent was treated with biofilm and activated sludge sequencing batch reactors to compare the performance of both systems. The treatment targets were organic carbon removal and nitrification. The pilot plant was operated in two phases. During the first phase, it was operated like a Moving Bed Biofilm Reactor (MBBR) with the Natrix media, with a specific surface area of 210 m2/m3. The MBBR was operated under Sequencing Batch Reactor (SBR) modality with three 8-hour cycles per day over 70 days. During the second phase of the experiment, the pilot plant was operated over 79 days as a SBR. In both phases the influent was fed to the reactor at a flow rate corresponding to a Hydraulic Retention Time (HRT) of 4 days. Both systems presented a good carbon removal for this specific wastewater. The Chemical Oxygen Demand (COD) total removal was 53% for MBBR and 55% for SBR. MBBR offered a higher dissolved COD removal (40%) than SBR (30%). The limited COD removal achieved is in agreement with the high COD to BOD5 ratio (1/3) of the influent wastewater. In both systems a complete nitrification was obtained. The different efficiencies in both systems are related to the different biomass concentrations.
采用生物膜和活性污泥序批式反应器处理厌氧反应器生物废料废水，以比较两种系统的性能。处理目标是去除有机碳和进行硝化作用。中试装置分两个阶段运行。在第一阶段，它像一个装有Natrix介质的移动床生物膜反应器（MBBR）一样运行，该介质的比表面积为210平方米/立方米。MBBR在序批式反应器（SBR）模式下运行，每天有三个8小时的周期，持续70天。在实验的第二阶段，中试装置作为SBR运行了79天。在两个阶段中，进水以对应4天水力停留时间（HRT）的流速进入反应器。对于这种特定的废水，两种系统都表现出良好的碳去除效果。MBBR的化学需氧量（COD）总去除率为53%，SBR为55%。MBBR的溶解性COD去除率（40%）高于SBR（30%）。所实现的有限的COD去除率与进水废水的高COD与生化需氧量（BOD5）之比（1/3）一致。在两个系统中都实现了完全硝化。两个系统中不同的效率与不同的生物量浓度有关。
