Figure 2. Response surface plots representing the biodiesel yields (a) temperature and catalyst weight versus biodiesel yield (b) catalyst weight and ethanol to oil molar ratio versus biodiesel yield and (c) temperature and ethanol to oil molar ratio versus on biodiesel yield

From

Vegetables Oil Waste Water as Solution for Air Pollution Reduction

Raja Thiyagarajan, Omprakash Sahu

Journal of Atmospheric Pollution. 2014, 2(1), 6-11 doi:10.12691/jap-2-1-2