膜科学与技术

A2O-MBR组合工艺深度处理液晶TFT-LCD废水的试验研究

作者：王怀林，云金明，关晓琳，武克亮

单位：江苏凯米膜科技股份有限公司，江苏南京 210049

关键词：膜生物反应器；TFT-LCD废水；深度处理

出版年,卷(期):页码： 2015,35(5):97-101

摘要：

采用A2O-MBR组合工艺处理液晶TFT-LCD废水，并对其处理效果和工艺运行稳定性进行中试研究。试验结果表明，A2O-MBR组合工艺对液晶TFT-LCD废水具有良好且稳定的处理效果，在试验条件下，系统出水COD≤35mg/L、NH3-N≤5 mg/L、TN ≤15mg/L、TP≤0.33mg/L、浊度≤0.2NTU，可稳定达到《城市污水再生利用城市杂用水水质》（GB/T18920-2002）的要求。试验运行期间，MBR系统可在高通量下稳定运行，跨膜压差始终在0.04bar~0.06bar之间，采用低浓度化学清洗对膜的渗透性能恢复较好。

Using the A2O-MBR combined process for treating TFT-LCD wastewater, and the treatment effect and operational stability were studied. The experimental results showed that the combined process of A2O-MBR has a good treatment effect and stability of TFT-LCD wastewater, under the experimental conditions, the effluent COD, NH3-N, TN, TP and turbidity were ≤35mg/L, ≤5mg/L, ≤15mg/L, ≤0.33mg/L, ≤0.2NTU, meeting the requirements of The reuse of urban recycling water--Water quality standard for urban miscellaneous water consumption (GB/T18920-2002). During the test, MBR system was stable operation at high flux, and the transmembrane pressure always between 0.04bar to 0.06bar, membrane permeability has a good recovery performance under the chemical cleaning of low concentration.

参考文献：

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