Model | Langmuir | Freundlich | Sips | Dubinin-Radushkevich | BET | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Parameter | KL (L mg−1) | qmax (mg g−1) | R2 | KF (mg1–1/nf L1/nf g− 1) | 1/nf | R2 | qmax (mg g− 1) | Ks (Lns mg-ns) | ns | R2 | qmax (mg g− 1) | Β (mol2 J− 2) | E (kJ mol− 1) | R2 | qBET (mg g− 1) | K1 (L mg− 1) | K2 (L mg− 1) | R2 | ||
NH4+ | Single | CH | 0.024 | 4.27 | 0.986 | 2.1 × 10− 1 | 0.63 | 0.984 | 5.28 | 2.3 × 10− 2 | 0.91 | 0.987 | 11.89 | 7.35 × 10−9 | 8.3 | 0.986 | 2.00 | 6.5 × 10− 2 | 6.0 × 10−3 | 0.984 |
CHC | 0.006 | 3.59 | 0.923 | 3.4 × 10− 2 | 0.82 | 0.909 | 5.02 | 6.0 × 10− 3 | 0.92 | 0.924 | 4.87 | 8.30 × 10− 9 | 7.9 | 0.907 | 0.65 | 5.1 × 10− 2 | 7.0 × 10− 3 | 0.934 | ||
CHEG | 0.102 | 1.38 | 0.604 | 5.1 × 10− 1 | 0.21 | 0.882 | 5.66 | 9.9 × 10−2 | 0.24 | 0.873 | 1.70 | 1.90 × 10−9 | 16 | 0.873 | 0.74 | 6.9 | 8.0 × 10−3 | 0.973 | ||
Mixed | CH | 0.076 | 2.88 | 0.891 | 5.2 × 10−1 | 0.38 | 0.952 | 5.03 | 9.9 × 10− 2 | 0.54 | 0.943 | 5.86 | 4.29 × 10−9 | 11 | 0.940 | 1.21 | 9.1 × 10− 1 | 1.0 × 10− 2 | 0.931 | |
CHC | 0.009 | 3.41 | 0.905 | 1.9 × 10−2 | 1.04 | 0.929 | 4.67 | 3.0 × 10−3 | 1.21 | 0.934 | 18.25 | 1.26 × 10−8 | 6.2 | 0.935 | 0.39 | 1.3 × 10−1 | 1.3 × 10− 2 | 0.980 | ||
CHEG | 0.034 | 3.43 | 0.969 | 2.8 × 10−1 | 0.52 | 0.964 | 5.89 | 3.2 × 10−2 | 0.74 | 0.970 | 8.82 | 6.40 × 10−9 | 8.8 | 0.970 | 2.33 | 5.6 × 10−2 | 3.0 × 10−3 | 0.970 | ||
NO3− | Single | CH | 0.005 | 4.45 | 0.845 | 3.0 × 10−3 | 1.43 | 0.949 | 5.67 | 1.0 × 10−3 | 1.28 | 0.924 | 6.43 | 7.58 × 10−9 | 8.1 | 0.852 | 0.37 | 6.2 × 10−2 | 9.0 × 10− 3 | 0.983 |
CHC | 0.044 | 1.60 | 0.907 | 1.8 × 10−1 | 0.45 | 0.917 | 1.52 | 3.9 × 10−2 | 1.07 | 0.928 | 3.71 | 3.83 × 10−9 | 11 | 0.929 | 0.97 | 1.3 × 10−1 | 4.0 × 10−3 | 0.938 | ||
CHEG | 0.125 | 3.80 | 0.949 | 8.4 × 10−1 | 0.37 | 0.994 | 7.70 | 1.1 × 10−1 | 0.52 | 0.990 | 10.60 | 3.46 × 10−9 | 12 | 0.992 | 2.29 | 3.5 × 10−1 | 8.0 × 10−3 | 0.999 | ||
Mixed | CH | 0.081 | 0.76 | 0.930 | 1.4 × 10−1 | 0.38 | 0.965 | 1.27 | 9.3 × 10−2 | 0.59 | 0.967 | 2.06 | 3.74 × 10−9 | 11 | 0.969 | 0.42 | 2.4 × 10−1 | 7.0 × 10−3 | 0.955 | |
CHC | 0.013 | 1.28 | 0.927 | 3.9 × 10−2 | 0.65 | 0.953 | 1.65 | 2.5 × 10−2 | 0.71 | 0.932 | 4.21 | 6.66 × 10−9 | 8.7 | 0.946 | 0.27 | 2.1 × 10− 1 | 9.0 × 10−3 | 0.987 | ||
CHEG | 0.087 | 0.91 | 0.933 | 2.2 × 10−1 | 0.30 | 0.978 | 1.73 | 1.3 × 10− 1 | 0.45 | 0.988 | 1.87 | 2.92 × 10−6 | 0.4 | 0.988 | 0.58 | 5.1 × 10−1 | 4.0 × 10−3 | 0.973 | ||
PO43− | Single | CH | NA | NA | NA | 5.1 × 10−4 | 1.96 | 0.892 | 5.08 | 1.6 × 10−6 | 3.06 | 0.940 | 2270.88 | 2.12 × 10−8 | 4.8 | 0.917 | 41.03 | 3.2 × 10−4 | 5.0 × 10−3 | 0.890 |
CHC | NA | NA | NA | 2.0 × 10−3 | 1.51 | 0.896 | 2.90 | 5.8 × 10−5 | 2.32 | 0.952 | 299.11 | 1.60 × 10−8 | 5.6 | 0.924 | 35.80 | 3.6 × 10− 4 | 3.0 × 10− 3 | 0.895 | ||
CHEG | NA | NA | NA | 1.4 × 10− 4 | 2.20 | 0.900 | 4.99 | 6.3 × 10−6 | 2.65 | 0.929 | 3503.18 | 2.32 × 10−8 | 4.6 | 0.923 | 37.28 | 1.9 × 10−4 | 6.0 × 10−3 | 0.824 | ||
Mixed | CH | 0.001 | 14.83 | 0.846 | 1.1 × 10−2 | 1.08 | 0.815 | 1.89 | 6.9 × 10−7 | 3.53 | 0.940 | 59.28 | 1.19 × 10−8 | 6.5 | 0.871 | 3.12 | 5.0 × 10−3 | 2.0 × 10− 3 | 0.805 | |
CHC | 0.001 | 6.91 | 0.921 | 1.2 × 10−2 | 0.87 | 0.914 | 1.10 | 7.7 × 10−4 | 1.63 | 0.925 | 14.21 | 1.04 × 10−8 | 6.9 | 0.922 | 2.68 | 3.0 × 10−3 | 8.1 × 10− 4 | 0.921 | ||
CHEG | 0.073 | 1.50 | 0.975 | 3.6 × 10−1 | 0.30 | 0.934 | 1.50 | 7.4 × 10−2 | 1.00 | 0.976 | 3.32 | 2.95 × 10−9 | 13 | 0.957 | 1.42 | 8.2 × 10−2 | 4.8 × 10−4 | 0.976 |