Table 6 Flame atomic absorption spectrometry for heavy metals analysis of culture filtrate samples during shake-flask batch cultivation and RP leftover samples during shake-flask, and uncontrollable pH batch cultivation system.
Metals conc. (mg L−1) | Incubation time (h) | |||||
|---|---|---|---|---|---|---|
0 | 4 | 12 | 20 | 28 | 32 | |
Flame atomic absorption spectrometry for culture filtrate | ||||||
K | 158.29 | 227.19 | 365.4 | 484.99 | 506.34 | 351.74 |
Pb | < 0.3535 | < 0.353 | < 0.353 | 1.455 | 0.353 | < 0.353 |
Fe | 1.890 | 3.62 | 10.081 | 38.26 | 15.230 | 12.757 |
Cd | 0.0222 | 0.0373 | 0.1276 | 0.155 | 0.0437 | 0.047 |
Zn | 1.49 | 0.350 | 0.6989 | 1.375 | 0.874 | 0.2183 |
Mg | 83.1 | 95.47 | 123.98 | 246.45 | 127.46 | 85.46 |
Mn | 0.9 | 1.46 | 2.157 | 3.727 | 4.19 | 3.55 |
Ca | 349.88 | 536.36 | 660.53 | 709.44 | 633.28 | 458.219 |
Na | 611.20 | 1035.01 | 1825.59 | 1135.26 | 795.18 | 641.50 |
Cu | < 0.0346 | < 0.0346 | 0.0535 | 0.1339 | 0.293 | 0.0601 |
Metals conc. (mg Kg−1) | Rock phosphate sample (control) | Shake flask batch cultivation | Uncontrollable pH batch cultivation | |||
|---|---|---|---|---|---|---|
Flame atomic absorption spectrometry for RP leftover samples | ||||||
Co | 10.32 | 9.616 | 10.01 | |||
K | 9777.00 | 2166.00 | 4186.36 | |||
Fe | 105,944.4 | 145,140 | 43,902 | |||
Ni | 24.420 | 20.420 | 1.58 | |||
Cd | 0.968 | 1.1564 | 0.47 | |||
Cr | 15.29 | 7.0880 | 32.3400 | |||
Zn | 1255.5 | 95.52 | 7254.54 | |||
Mg | 28,944.400 | 17,454.00 | 57,286.300 | |||
Mn | 364.5 | 1944.0 | 5754.00 | |||
Li | 77.77 | 1176.0 | 3450.00 | |||
Ca | 153,629.6 | 229,000 | 135,272.72 | |||
Sn | 10.120 | < 1.2 | < 1.2 | |||
Ag | 288.8 | 426 | 1.236 | |||
Na | 16.60 | 11,430 | 19,145.45 | |||
Cu | 1422.22 | 13.90 | 20.81 | |||
