Centre for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, Studentská 2, 461 17 Liberec 1, Czech Republic.
Water Res. 2013 Sep 1;47(13):4412-21. doi: 10.1016/j.watres.2013.03.053. Epub 2013 Apr 16.
The influence of industrial (pharmaceutical and chemical) wastewater composition on membrane bioreactor (MBR) performance was investigated in a pilot-scale installation. The study focussed on nitrification performance, which was evaluated based on influent and effluent parameters as well as batch nitrification rate tests. The industrial wastewater was pumped into the MBR in a mixture with municipal wastewater at constant flow rate. The loading of the MBR with industrial wastewater was increased stepwise from 0 to 75% share in the mixed influent to study the adaptation of nitrifying bacteria. Stable nitrification performance was observed until the content of industrial wastewater in the influent reached 40%, with effluent values of around 0.56 mg L(-1) NH4-N and 98.3% ammonia removal. Breakdown of nitratation was observed at a 40% industrial wastewater dose and breakdown of nitritation at a 50% dose, respectively. However, after several months of adaptation, both processes recovered. No nitrification was observed when the industrial wastewater share exceeded 50%. Adaptation of nitrifying bacteria in the MBR was also confirmed by results of kinetic tests. The inhibition effect of the concentrated industrial wastewater to the MBR sludge decreased substantially after several months of exposure, while the inhibition of referential activated sludge remained constant.
在中试规模的设备中研究了工业（制药和化工）废水成分对膜生物反应器（MBR）性能的影响。研究重点是硝化性能，这是根据进水和出水参数以及批量硝化速率测试进行评估的。工业废水与城市废水以恒定流速混合泵入 MBR。通过逐步增加 MBR 中工业废水的负荷，从混合进水的 0 到 75%的份额，研究硝化细菌的适应性。直到进水的工业废水含量达到 40%，仍保持稳定的硝化性能，出水的 NH4-N 值约为 0.56mg/L 和 98.3%的氨去除率。分别在工业废水剂量达到 40%和 50%时观察到硝态氮硝化和亚硝态氮硝化的崩溃。然而，经过几个月的适应，两个过程都恢复了。当工业废水份额超过 50%时，没有观察到硝化作用。动力学测试的结果也证实了 MBR 中硝化细菌的适应性。经过几个月的暴露，浓缩工业废水对 MBR 污泥的抑制作用大大降低，而参考活性污泥的抑制作用保持不变。
