Adsorbed Chemical Elements of River Runoff of Solids and Their Role in the Transformation of Dissolved Matter Runoff into the Ocean
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Major Cations
3.2. Trace Elements
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Solid Phase | Equilibrium Concentrations [i], mg-eq/L | ||
---|---|---|---|
Solution “A” (Mixing in the Absence of Solid Phase) | Solution “B” (Mixing in the Presence of Solid Phase) | Difference ∆[i] = [i]B−[i]A | |
Na | |||
Dark-gray silt | 480.5 | 466.8 | −13.7 |
Sandy brown silt, sample 1 | 479.6 | 467.0 | −12.6 |
The same, sample 2 | 479.1 | 467.3 | −11.8 |
Silty sand, sample 1 | 479.6 | 472.1 | −7.5 |
The same, sample 2 | 479.9 | 472.1 | −7.8 |
Mean | −10.68 | ||
K | |||
Dark-gray silt | 10.55 | 8.60 | −1.95 |
Sandy brown silt, sample 1 | 10.48 | 8.76 | −1.72 |
The same, sample 2 | 10.29 | 8.68 | −1.61 |
Silty sand, sample 1 | 10.39 | 9.42 | −0.97 |
The same, sample 2 | 10.19 | 9.20 | −0.99 |
Mean | −1.45 | ||
Mg | |||
Dark-gray silt | 110.6 | 107.4 | −3.2 |
Sandy brown silt, sample 1 | 109.0 | 106.4 | −2.6 |
The same, sample 2 | 110.1 | 107.5 | −2.6 |
Silty sand, sample 1 | 109.5 | 107.5 | −2.0 |
The same, sample 2 | 111.6 | 109.3 | −2.3 |
Mean | −2.54 | ||
Ca | |||
Dark-gray silt | 20.56 | 38.85 | 18.28 |
Sandy brown silt, sample 1 | 21.15 | 36.83 | 15.68 |
The same, sample 2 | 20.76 | 37.44 | 16.68 |
Silty sand, sample 1 | 20.82 | 31.27 | 10.45 |
The same, sample 2 | 20.38 | 32.01 | 11.63 |
Mean | 14.54 |
Material | Ratio of the Equivalent Concentrations Difference in Solution ∆[i]/∆[Ca] | Reference | |||
---|---|---|---|---|---|
Na | K | Mg | Ca | ||
Terrigenous material of river runoff, natural observations | −0.67 | −0.19 | −0.15 | 1.00 | [10] |
Soil and clay minerals, experimental modeling | −0.77 | −0.09 | −0.14 | 1.00 | “ |
Freshwater bottom sediments, experimental modeling | −0.73 | −0.10 | −0.17 | 1.00 | This study |
Mean | −0.72 | −0.13 | −0.15 | 1.00 | “ |
Ion | Input into the Ocean, Mt/yr | Contribution of the Ion Exchange to the Input into the Ocean (% of the Input with the River Runoff) 1 | ||
---|---|---|---|---|
River Runoff [14] | Ion Exchange in the Adsorbed Complex of the Solids of River Runoff 1 | Input with Correction for the Ion Exchange 1 | ||
Na | 300 | |||
K | 58 | |||
Mg | 152 | |||
Ca | 613 |
Solid Phase | Equilibrium Concentrations [i], μg/L | Specific Desorption (+) or Sorption (−), μg/g (g/t) | ||
---|---|---|---|---|
Solution “A” (Mixing in the Absence of Solid Phase) | Solution “B” (Mixing in the Presence of Solid Phase) | Difference ∆[i] = [i]B − [i]A | ||
N-NH4 | ||||
Dark-gray silt | 257 | 305 | 48 | 0.48 |
Sandy brown silt, sample 1 | 179 | 211 | 32 | 0.32 |
The same, sample 2 | 185 | 217 | 32 | 0.32 |
Silty sand, sample 1 | 157 | 177 | 20 | 0.20 |
The same, sample 2 | 162 | 182 | 20 | 0.20 |
Mean | 30 | 0.30 | ||
Cs | ||||
Dark-gray silt | 0.198 | 0.044 | −0.154 | −0.0015 |
Sandy brown silt, sample 1 | 0.063 | 0.005 | −0.058 | −0.0006 |
The same, sample 2 | 0.085 | 0.007 | −0.078 | −0.0008 |
Silty sand, sample 1 | 0.099 | 0.039 | −0.060 | −0.0006 |
The same, sample 2 | 0.080 | 0.024 | −0.056 | −0.0006 |
Mean | −0.081 | −0.0008 | ||
Ba | ||||
Dark-gray silt | 32 | 1650 | 1618 | 16.2 |
Sandy brown silt, sample 1 | 66 | 1450 | 1384 | 13.8 |
The same, sample 2 | 87 | 1510 | 1423 | 14.2 |
Silty sand, sample 1 | 32 | 1090 | 1058 | 10.6 |
The same, sample 2 | 64 | 1100 | 1036 | 10.4 |
Mean | 1304 | 13.0 | ||
Mn | ||||
Dark-gray silt | 1540 | 17780 | 16240 | 162.4 |
Sandy brown silt, sample 1 | 680 | 13140 | 12460 | 124.6 |
The same, sample 2 | 880 | 17110 | 16230 | 162.3 |
Silty sand, sample 1 | 120 | 1770 | 1650 | 16.5 |
The same, sample 2 | 80 | 260 | 180 | 1.8 |
Mean | 9350 | 93.5 | ||
Co | ||||
Dark-gray silt | 1.91 | 22.15 | 20.24 | 0.202 |
Sandy brown silt, sample 1 | 1.25 | 8.81 | 7.56 | 0.076 |
The same, sample 2 | 2.13 | 8.86 | 6.73 | 0.067 |
Silty sand, sample 1 | 0.51 | 3.70 | 3.19 | 0.032 |
The same, sample 2 | 0.94 | 6.47 | 5.53 | 0.055 |
Mean | 8.65 | 0.086 | ||
Ni | ||||
Dark-gray silt | 13.92 | 35.28 | 21.36 | 0.214 |
Sandy brown silt, sample 1 | 7.21 | 17.59 | 10.38 | 0.104 |
The same, sample 2 | 16.59 | 24.95 | 8.36 | 0.084 |
Silty sand, sample 1 | 0.71 | 2.27 | 1.56 | 0.016 |
The same, sample 2 | 1.97 | 2.88 | 0.91 | 0.009 |
Mean | 8.51 | 0.085 | ||
Cd | ||||
Dark-gray silt | 0.14 | 7.54 | 7.40 | 0.074 |
Sandy brown silt, sample 1 | 0.22 | 2.61 | 2.39 | 0.024 |
The same, sample 2 | 0.40 | 5.65 | 5.25 | 0.052 |
Silty sand, sample 1 | 0.13 | 2.03 | 1.90 | 0.019 |
The same, sample 2 | 0.32 | 0.72 | 0.40 | 0.004 |
Mean | 3.47 | 0.035 | ||
Tl | ||||
Dark-gray silt | 0.07 | 0.50 | 0.43 | 0.0043 |
Sandy brown silt, sample 1 | 0.03 | 0.40 | 0.37 | 0.0037 |
The same, sample 2 | 0.01 | 0.33 | 0.32 | 0.0032 |
Silty sand, sample 1 | 0.01 | 0.10 | 0.09 | 0.0009 |
The same, sample 2 | <0.01 | 0.07 | 0.07 | 0.0007 |
Mean | 0.26 | 0.0026 | ||
Pb | ||||
Dark-gray silt | 5.05 | 0.92 | −4.13 | −0.041 |
Sandy brown silt, sample 1 | 3.16 | 0.92 | −2.24 | −0.022 |
The same, sample 2 | 3.39 | 1.45 | −1.94 | −0.019 |
Silty sand, sample 1 | 3.08 | 2.44 | −0.64 | −0.006 |
The same, sample 2 | 3.22 | 2.17 | −1.05 | −0.010 |
Mean | −2.00 | −0.020 |
Ion | Concentration in the River Runoff, μg/L 1 | Input into the Ocean, Thous. t/yr | Contribution of the Ion Exchange to the Input into the Ocean (% of the Input with the River Runoff) 3 | ||
---|---|---|---|---|---|
River Runoff 2 | Ion Exchange in the Adsorbed Complex of the Solids of River Runoff 3 | Input with Correction for the Ion Exchange 3 | |||
N-NH4 | 14 | 584 | 0.8 | ||
Cs | 0.011 | 0.46 | |||
Ba | 23 | 959 | |||
Mn | 34 | 1420 | |||
Co | 0.15 | 6.26 | |||
Ni | 0.80 | 33.4 | |||
Cd | 0.08 | 3.34 | |||
Tl | (0.02) | 0.83 | |||
Pb | 0.079 | 3.29 |
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Savenko, A.V.; Savenko, V.S. Adsorbed Chemical Elements of River Runoff of Solids and Their Role in the Transformation of Dissolved Matter Runoff into the Ocean. Minerals 2022, 12, 445. https://doi.org/10.3390/min12040445
Savenko AV, Savenko VS. Adsorbed Chemical Elements of River Runoff of Solids and Their Role in the Transformation of Dissolved Matter Runoff into the Ocean. Minerals. 2022; 12(4):445. https://doi.org/10.3390/min12040445
Chicago/Turabian StyleSavenko, Alla V., and Vitaly S. Savenko. 2022. "Adsorbed Chemical Elements of River Runoff of Solids and Their Role in the Transformation of Dissolved Matter Runoff into the Ocean" Minerals 12, no. 4: 445. https://doi.org/10.3390/min12040445