摘要： 利用振动超滤膜和碟管反渗透膜联合处理高浓度废乳化液，通过连续中试试验，考察了其对废乳化液中COD的去除效果和处理过程中膜通量的变化。结果表明，在85%的回收率条件下，振动膜对废乳化液COD的去除率为56%~75%。振动膜出水经碟管膜二级处理后，产水COD<30 mg/L，达到《地表水环境质量标准》（GB 3838-2002）Ⅳ类水质标准，产水回收率为72%。处理过程中，振动膜和碟管膜的膜通量随着运行时间的延长呈缓慢下降趋势。经化学清洗剂和清水清洗后，膜通量可得到90%的恢复。

关键词: 废乳化液, 振动超滤膜, 碟管反渗透膜

Abstract: A combined process of vibratory shear enhanced process(VSEP) using ultrafiltration(UF) and disk tubereverse osmosis(DTRO) has been used for the treatment of high-concentration waste emulsion,and its removing effect on COD from the emulsion and the changes of membrane flux have been investigated by continuously pilot-scale experiments. The results indicate that the COD removing rate by VSEP system is 56%-75% when the water recovery rate is 85%. After the VSEP effluent has been treated with two-stage DTRO,the final effluent COD is less than 30 mg/L,meeting Class Ⅳ water quality criterion,specified in Surface Water Environment Quality Standard(GB 3838-2002), and the produced water recovery rate reaches 72%. In the treatment process,the flux of VSEP using UF membrane and DTRO shows a slow downtrend,with the extension of running time. After the membranes have been cleaned with chemical cleaning agent and clear water,90% of membrane flux can be recovered.

Key words: waste emulsion, VSEP using UF membrane, disk tube-reverse osmosis(DTRO)

中图分类号: 

• X703.1