Figure 7
The effect of electromagnetic fields (2.5, 10 and 15 mT) on biomass production (A) and ammonium nitrogen consumption (B) under anaerobic conditions (experimental parameters: mixing: 500 RPM, aeration with oxygen/nitrogen: 2000 cm3/min, pH: 5.5, temperature: 30 °C). The Groups A and B are statistically significantly different according to linear regression model test (*statistically significant at p ≥ 0.05).
