Concentration, Ci / mg·L-1
2.5
2.0
1.5
1.0
0.5
0.0
0
6
18
Ca
16
14
Mg
12
10
Si
8
6
Al
4
Fe
2
0
12 18 24 30 36 42 48
Time, t / h

スライド 1 - BioMed Central

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