engleski

Efficiency of RO/NF membranes at removal of veterinary antibiotics

The production of pharmaceuticals has increased rapidly during the last several decades while they have been used for the health of human and animals. Routes of environmental exposure include the release of treated wastewater, land disposal of livestock manures and municipal biosolids (i.e., sewage sludge), and the use of medicated aquaculture feed. This study represents the membrane treatment technology (RO/NF) for the individual removal of antibiotic residues (sulfamethoxazole, trimethoprim, ciprofloxacin, dexamethasone and febantel) and their mixture. According to the results obtained in this work the use of RO (LFC–1 and XLE) and tight NF90 membrane are recommended to achieve an excellent level of removal (> 95%) of all selected veterinary antibiotics (VAs). Nanofiltration NF270, NF and HL membranes showed lower rejection of VAs in binary solutions, but a much higher one in a mixture solution, due to synergistic effect.

Removal efficiency; RO/NF membranes; veterinary antibiotics

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