Fig. 11From: Adsorptive removal of levofloxacin and antibiotic resistance genes from hospital wastewater by nano-zero-valent iron and nano-copper using kinetic studies and response surface methodologyThree-dimensional surface plots depicting interactions among different process variables: a initial levofloxacin concentration, pH; b adsorbent dose, pH; c contact time, pH; d contact time, initial concentration; e adsorbent dose, initial levofloxacin concentration; f contact time, adsorbent dose for CuONPs; g initial levofloxacin concentration, pH; h adsorbent dose, pH; k contact time, adsorbent dose; l contact time, pH; m adsorbent dose initial levofloxacin concentration; n contact time, initial concentration for nZVIBack to article page