Table 8 Ion Concentration in Leachate from fly Ash and bottom Ash (mg/L).
Ion | Fly ash | Bottom ash | Upper limit of monitoring indicators | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ash outlet | ash storage yard | taphole | slag dump | China GB/T14848-2017 | WHO 98/83/EC | USA MCL(MCLG) | EU | JAPAN WQC | |||||
1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | ||||||
Cd | 0.0102 | 0.0024 | null | 0.0024 | null | 0.0024 | null | null | 0.005 | 0.003 | 0.005 | 0.005 | 0.01 |
Pb | 0.2667 | 0.1833 | 0.1833 | 0.1000 | 0.1000 | 0.1833 | null | null | 0.01 | 0.01 | 0.015 | 0.01 | 0.01 |
Cu | 0.0185 | 0.0088 | 0.0088 | 0.0088 | null | null | null | null | 1.0 | 1.0 | 1.3 | 2.0 | 1.0 |
Cr | 0.0989 | 0.1538 | null | 0.0989 | 0.0440 | null | null | null | 0.05 | 0.05 | 0.1 | 0.05 | 0.05 |
Ni | 0.2128 | 0.0528 | 0.1806 | 0.0368 | 0.1806 | 0.0048 | 0.1648 | null | 0.02 | 0.02 | 0.02 | 0.01 | |
As | null | null | null | null | null | null | null | null | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
Hg | 0.0002 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.001 | 0.001 | 0.002 | 0.001 | 0.0005 |
Se | null | 0.0001 | null | 0.0001 | null | 0.0001 | null | 0.0001 | 0.01 | 0.01 | 0.05 | 0.01 | 0.01 |
F− | 3.1920 | 3.635 | 2.8886 | 3.3750 | 0.6055 | 1.1500 | 0.5525 | 0.7700 | 1.0 | 1.5 | 4.0 | 1.5 | 0.8 |
Cl− | 149.63 | 154.55 | 107.36 | 139.31 | 2.9585 | 13.413 | 2.6055 | null | 250 | 250 | 250 | 250 | 200 |
SO42− | 723.70 | 727.86 | 709.19 | 720.03 | 792.88 | 813.26 | 791.54 | 771.44 | 250 | 250 | 250 | 250 | |
