This study researched a series of experiments on lincomycin recovery from pharma- ceutical wastewater with two kinds of roll-up nanofiltration membrane unit:NF1 and NF2.The result of experiments indicates it can meet the requirements of process that concentrated solution is reused to production to use only NF1 membrane.When using the system of NF1 and NF2 in series(NF1 membrane as primary separation unit and NF2 membrane as the secondary),recovery rate of lincomycin is up to over 90%.Furthermore,the result ...