I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and EC of 1000 mL wastewater is more than lower volumes and BOD and COD of lower volume wastewater i.e 50 mL is more than higher volumes after MFC treatment. Can you please give reasons for these results?? Please note that wastewater of different volumes is taken from the same source at the same time