Official Journal of the Japan Wood Research Society
Table 2 Ranges of concentrations of sodium, potassium, magnesium, and calcium ions eluted from OC, AC, W-OC, and W-AC
Adsorbent | Molar concentration (mol/L) | pH | |||||||
|---|---|---|---|---|---|---|---|---|---|
Na+ | K+ | Mg2+ | Ca2+ | ||||||
No adsorbent (blank) | <1.3 × 10−6 a | <5.1 × 10−7 b | <8.2 × 10−7 c | <1.0 × 10−6 d | |||||
Maximum | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | Minimum | ||
OC | 4.8 × 10−5 | 3.5 × 10−5 | 2.8 × 10−3 | 2.8 × 10−3 | 3.3 × 10−5 | 2.5 × 10−5 | 3.0 × 10−5 | 2.0 × 10−5 | 10.40 |
AC | 7.4 × 10−4 | 7.3 × 10−4 | 1.2 × 10−3 | 1.2 × 10−3 | 6.2 × 10−4 | 6.1 × 10−4 | 1.8 × 10−4 | 1.7 × 10−4 | 9.87 |
W-OC | 1.3 × 10−5 | 0 | 1.0 × 10−4 | 9.5 × 10−5 | 8.2 × 10−6 | 0 | 1.7 × 10−4 | 1.6 × 10−4 | 8.26 |
W-AC | 7.0 × 10−5 | 5.7 × 10−5 | 2.8 × 10−5 | 2.3 × 10−5 | 2.8 × 10−4 | 2.7 × 10−4 | 3.5 × 10−4 | 3.4 × 10−4 | 8.55 |