Figure 4
Effects of initial concentration (A), pH (B), temperature (C), and NaCl (D) on the biodegradation of lawsone by strain LH-3. The experimental conditions were 200 mg L−1 lawsone, 30 °C, pH of 7.0 unless otherwise stated. No NaCl was added in (A–C). The sampling time was 9 h in (B–D). The lowercase shown on the top of column indicated the significant analysis conducted by SPSS, p < 0.05.
