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Table 4 Factors affecting removal of heavy metals from wastewater

From: Bacterial biosurfactant from Citrobacter freundii MG812314.1 as a bioremoval tool of heavy metals from wastewater

Biosurfactant amount (%) Contact time (day) Heavy metals removal (%)
Al2+ Cd2+ Cu2+ Fe2+ Pb2+ Mn2+ Zn2+
5 3 47.0b 25.0c 50.0c 30.0b 20.0c 30.0c 55.0c
6 50.0b 30.0b 52.0c 35.0b 23.0c 40.0b 62.0b
10 3 66.0a 41.0a 67.0a 45.0a 44.0a 55.0 80.0a
6 54.0b 39.0a 61.0b 33.0b 37.0b 53.0 77.0a
MSE 2.17 0.91 0.91 2.34 1.77 1.47 1.38
  1. Mean having similar letters in each column are not significantly different (P < 0.05)