Table 1 Physicochemical properties of PAW generated by argon gas at different flow rate and time duration (n = 3/treatment).
Treatment (gas flow rate) | Treatment time (min) | pH | H2O2 (mg/L) | Nitrite (mg/L) | Nitrate (mg/L) | Conductivity (μS/cm) | mV (electrode) |
|---|---|---|---|---|---|---|---|
Control (untreated) | – | 7.16 ± 0.04 | 0.00 ± 0.00 | Not detected | 27.07 ± 1.10 | −2.33 ± 0.88 | |
0.25 Lpm | 3 | 6.67 ± 0.01 | 80.00 ± 0.00 | Not detected | 14.27 ± 0.70 | 35.00 ± 2.52 | |
5 | 6.45 ± 0.01 | 100.00 ± 0.00 | Not detected | 22.50 ± 0.85 | 43.00 ± 1.15 | ||
10 | 6.15 ± 0.03 | 200.00 ± 0.00 | Not detected | 18.67 ± 0.73 | 48.33 ± 1.20 | ||
0.50 Lpm | 3 | 6.65 ± 0.05 | 100.00 ± 0.00 | Not detected | 9.10 ± 0.70 | 27.67 ± 1.45 | |
5 | 6.63 ± 0.05 | 200.00 ± 0.00 | Not detected | 9.50 ± 0.46 | 32.00 ± 0.58 | ||
10 | 5.99 ± 0.02 | 300.00 ± 0.00 | Not detected | 13.63 ± 1.09 | 68.33 ± 3.28 | ||
