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IntroductionThe concept of emulsion liquid membrane ( ELM)was suggested by Li in1 968[1] .In this technique,extraction and re- extraction are carried out in onesingle step with a large mass transferarea( 1 0 6m2 /m3 ) obtained within the emulsion drops.Theseadvantages attracted researchers with much ELMresearch carried out[2 4] since then. Industrialprocesses for treating acidic Zn- containing wastewater by EML have not been reported.Based onour laboratory experiments,we began to build ap…  相似文献   
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