Fig. 4: Comparative analysis of two MP quantification methods.
From: Advanced nanobubble flotation for enhanced removal of sub-10 µm microplastics from wastewater
a Turbidity calibration for MPs of 1 µm and 10 µm MPs. Data points and error bars represent the mean and standard deviation of five independent measurements. b Turbidity calibration for 20 µm and 40 µm MPs. Data points and error bars represent the mean and standard deviation of five independent measurements. c Calibration of the image analysis method for different-sized MPs. Data points and error bars represent the mean and standard deviation of two independent measurements. d Comparison of two quantification methods assessing the simultaneous removal of a mixture of MPs in four sizes with an AlCl3 dosage of 10 ppm. Data points and error bars for turbidity tests represent the mean and standard deviation of five independent measurements each from two independent experiments; for the image analysis method, they represent the mean and standard deviation from two independent experiments.
