Effects of Manure Waste Biochars in Mining Soils
Abstract
:1. Introduction
2. Materials and Methods
2.1. Selected Manure Wastes and Biochar Production
2.2. Selected Mining Soils
2.3. Material Characterization
2.3.1. Raw Materials and Biochars
2.3.2. Mining Soils
2.4. Incubation Experiment
2.5. Statistical Analysis
3. Results
3.1. Material Characterization
3.1.1. Raw Materials and Biochars
3.1.2. Soil Characterization
3.2. Characterization of Amended Mining Soils: Trace Metal Mobility
3.3. CO2 Emissions and qCO2 Quotient in Amended Mining Soils
- For the Zarandas-Andalusia area (Figure 2a):Soil Z1: Z1 (81 mg·100 g−1) < Z1 + BPL600 (+69%) < Z1 + BRM600 (125%) < Z1 + BRM450 (232%) < Z1 + BPL450 (+281%);Soil Z2: Z2 (90 mg·100 g−1) ≈ Z2 + BPL600 ≈ Z2 + BRM600 ≈ Z2 + BRM450 < Z2 + BPL450 (+145%);Soil Z3: Z3 + BPL600 (−30%) ≈ Z3 + BRM600 (−32%) < Z3 (141 mg·100 g−1) < Z3 + BRM450 ≈ Z3 + BPL450 (+34%).
- For the Mijarojos-Cantabria area (Figure 2b):Soil M1: M1 (347 mg·100 g−1) ≈ M1 + BRM600 ≈ M1 + BPL600 ≈ M1 + BRM450 < M1 + BPL450 (+26%);Soil M2 (264 mg·100 g−1): there was no significant difference among treatments for soil M2;Soil M3: M3 (340 mg·100 g−1) ≈ M3 + BRM600 ≤ M3 + BPL600 (+15%) ≈ M3 + BRM450 ≤ M3 + BPL450 (+40%).
- For the Portman-Murcia area (Figure 2c):Soil P1: P1 (279 mg·100 g−1) ≈ P1 + BRM600 < P1 + BPL600 (+38%) < P1 + BRM450 (77%) ≈ P1 + BPL450;Soil P2: P2 (261 mg·100 g−1) ≈ P2 + BPL600 ≈ P2 + BRM450 < P2 + BRM600 (+25%) ≈ P2 + BPL450;Soil P3: P3 (295 mg·100 g−1) < P3 + BPL450 (+21%) < P3 + BRM600 (+44%) < P3 + BRM450 (62%) ≈ P3 + BPL600;Soil P4: P4 + BPL600 (−33%) < P4 + BRM600 (−28%) < P4 + BRM450 (−17%) < P4 (291 mg·100 g−1) < P4 + BPL450 (+27%).
- For the Zarandas-Andalusia area (Figure 4a):Soil Z1: Z1 + BRM450 (−27%) < Z1 + BPL450 (−35%) < Z1 + BPL600 (−50%) ≈ Z1 + BRM600 < Z1 (0.29);Soil Z2: Z2 + BRM600 (−56%) ≈ Z2 + BPL600 (-61%) < Z2 (0.23) ≈ Z2 + BPL450 ≈ Z2 + BRM450;Soil Z3: Z3 + BPL600 (−18%) < Z3 (0.17) ≈ Z3 + BPL450 < Z3 + BRM450 (40%) ≈ Z3 + BRM600.
- For the Mijarojos-Cantabria area (Figure 4b):Soil M1: M1 + BRM600 (−35%) ≈ M1+BRM450 ≈ M1 + BPL600 < M1 (0.69) < M1 + BPL450 (23%);Soil M2: M2 + BPL600 (−37%) < M2 + BRM600 (−18%) ≈ M2 + BPL450 ≈ M3 + BRM450 < M2 (1.08);Soil M3: M3 + BRM600 (−35%) ≈ M3 + BRM450 ≈ M3 + BPL600 < M3 + BPL450 (−25%) < M3 (0.69).
- For the Portman-Murcia area (Figure 4c):Soil P1: P1 (0.03) ≈ P1 + BRM600 ≈ P1 + BPL600 < P1 + BRM450 (62%) < P1 + BPL450 (323%);Soil P2: P2 + BRM600 (−57%) < P2 + BPL600 (−42%) ≤ P2 (0.07) < P2 + BRM450 (+11%) < P2 + BPL450 (+239%);Soil P3: P3 + BPL600 (−50%) ≈ P3 + BRM600 < P3 (0.04) < P3 + BRM450 (60%) > P3 + BPL450 (264%);Soil P4: P4 + BRM450 (−92%) ≈ P4 + BRM600 < P4 + BPL450 (−50%) < P4 + BPL600 < P4 (0.04).
4. Discussion
4.1. Materials Characterization
4.1.1. Raw Materials and Biochar Characterization
4.1.2. Soils Characterization
4.2. Metal Mobility in Amended Mining Soils
4.3. CO2 Emissions, qCO2 Quotient, and GMea Index
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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PL | BPL450 | BPL600 | RM | BRM450 | BRM600 | |
---|---|---|---|---|---|---|
pH | 9.01a 1 | 10.07b | 10.73c | 9.14a | 10.59c | 10.88c |
EC (dS·m−1) | 0.44ab | 0.47bc | 0.50c | 0.36a | 0.40a | 0.47bc |
C-oxi (%) | 12.9c | 11.4b | 4.30a | 25.8d | 11.6bc | 4.99a |
SOC (%) | 1.14d | 0.36b | 0.10a | 0.57c | 0.15a | 0.04a |
CEC (mmol·kg−1) | 89a | 123b | 131c | 139d | 151e | 132c |
P-Olsen (mg·kg−1) | 3214c | 2427b | 2123b | 3296c | 959a | 751a |
K (kg·kg−1) | 4.87a | 19.26c | 20.73d | 7.01b | 19.31c | 18.72c |
Ash (%) | 48.26 | 61.02 | 60.23 | 41.69 | 54.44 | 62.74 |
C (%) | 33.79 | 32.71 | 25.27 | 45.67 | 29.13 | 24.99 |
H (%) | 4.55 | 2.70 | 0.84 | 6.17 | 1.76 | 1.22 |
N (%) | 2.06 | 2.19 | 1.20 | 4.01 | 1.50 | 0.38 |
O (%) | 10.87 | 0.91 | 12.10 | 1.69 | 12.79 | 10.31 |
S (%) | 0.47 | 0.47 | 0.36 | 0.77 | 0.38 | 0.36 |
H/C ratio (%) | 1.62 | 0.99 | 0.40 | 1.62 | 0.73 | 0.64 |
O/C ratio (%) | 0.24 | 0.02 | 0.36 | 0.03 | 0.33 | 0.31 |
BET surf. area (m2·g−1) | - | 4.28 | 7.03 | - | 5.68 | 35.97 |
Adsorp. average pore width (Å) | - | 245.56 | 199 | - | 166.23 | 104.81 |
Amicro (m2·g−1) | - | 1.14 | 2.37 | - | 1.79 | 4.20 |
Vmicro (cm3·g−1) | - | 0.03 | 0.03 | - | 0.02 | 0.09 |
Vmeso (cm3·g−1) | - | 0.05 | 0.07 | - | 0.04 | 0.07 |
Vmacro (cm3·g−1) | - | 1.25 | 1.03 | - | 1.65 | 2.12 |
Porosity (%) | - | 66.19 | 63.95 | - | 75.25 | 72.72 |
Cd (mg·kg−1) | 0.03a | 0.24c | 0.33d | 0.06b | 0.36e | 0.35de |
Cr (mg·kg−1) | 2.01b | 4.48c | 4.72c | 0.97a | 8.22d | 8.33d |
Cu (mg·kg−1) | 33.9a | 53.79c | 65.7d | 44.3b | 73.7e | 61.1d |
Fe (mg·kg−1) | 2833a | 6763c | 8715e | 5657b | 7991d | 14,916f |
Ni (mg·kg−1) | 2.85a | 4.63c | 5.58d | 4.34b | 6.66e | 7.93f |
Pb (mg·kg−1) | 7.43a | 15.4d | 13.6c | 7.95a | 9.59b | 11.0b |
Zn (mg·kg−1) | 468a | 546b | 701d | 623c | 870f | 753e |
Z1 | Z2 | Z3 | P1 | P2 | P3 | P4 | M1 | M2 | M3 | |
---|---|---|---|---|---|---|---|---|---|---|
pH | 4.68c 1 | 4.34b | 3.63a | 8.16i | 8.09h | 7.90g | 7.89g | 5.67d | 5.84e | 7.30f |
EC (dS·m−1) | 0.06a | 0.09a | 0.22bc | 0.19b | 0.35d | 1.49f | 2.24g | 0.49e | 0.23c | 0.25c |
C-oxi (%) | 1.34c | 0.22a | 0.10a | 0.78b | 0.92b | 0.39a | 0.25a | 1.73d | 5.38e | 1.83d |
CEC (mmol·kg−1) | 11.7e | 3.64a | 2.88a | 23.9f | 12.2e | 9.90c | 10.6cd | 10.2c | 7.10b | 11.3de |
P-Olsen (mg·kg−1) | 1307bc | 1949c | 988ab | 10001e | 6632d | 424a | 722ab | 1915c | 706ab | 961ab |
K (g·kg−1) | 0.12a | 0.10a | 0.09a | 5.05c | 4.97c | 6.13d | 8.33g | 4.34b | 7.21f | 6.93e |
Texture | Loamy | Loamy | Sandy loam | Sandy loam | Sandy clay loam | Sandy clay loam | Sandy loam | Sandy loam | Loamy sand | Sandy loam |
Z1 | Z2 | Z3 | P1 | P2 | P3 | P4 | Ref. Values 1 | M1 | M2 | M3 | Ref. Values 2 | Critical Values 5 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(dry mg·kg−1, except Fe in dry g·kg−1) | |||||||||||||
Cd | 0.5 | 0.5 | 0.5 | 5.84 | 20.1 | 8.62 | 16.4 | 750 | 12.7 | 0.99 | 1.81 | 1.0 | 3–8 |
Cr | 97.3 | 2.56 | 2.42 | 61.5 | 39.2 | 50.9 | 43.2 | 10,000 3 100 4 | 72.0 | 43.8 | 44.4 | 118.0 | 75–100 |
Cu | 183 | 374 | 248 | 34.3 | 207 | 35.1 | 47.0 | 10,000 | 13.6 | 11.2 | 9.12 | 34.0 | 60–125 |
Fe | 58.9 | 91.6 | 98.0 | 113 | 175 | 153 | 185 | - | 201 | 26.6 | 43.1 | - | - |
Ni | 27.5 | 2.47 | 2.13 | 44.8 | 39.9 | 29.5 | 31.4 | 10,000 | 43.1 | 8.80 | 27.2 | 52.0 | 100 |
Pb | 104 | 296 | 422 | 5072 | 2848 | 2321 | 2770 | 2750 | 3295 | 82.2 | 174 | 58.0 | 100–400 |
Zn | 130 | 219 | 81.4 | 2575 | 8573 | 3580 | 6373 | 10,000 | 11,035 | 180 | 758 | 272.0 | 70–400 |
As | 65.5 | 236 | 528 | 144 | 1183 | 234 | 530 | 40 | 110 | 19.3 | 44.4 | 38.0 | 20–50 |
pH | EC | Cr | Cu | Ni | Fe | Zn | Cd | Pb | |
---|---|---|---|---|---|---|---|---|---|
dS·m−1 | mg·kg−1 | kg·kg−1 | mg·kg−1 | ||||||
Z1 | 5.81a | 0.16a | 0.56b | 0.41b | 6.10c | 5.22d | 1.46b | 0.07a | 6.89d |
Z1 + BPL450 | 8.44d | 2.23c | 0.35a | 0.50c | 3.81a | 1.84a | 0.32a | 0.07a | 2.78a |
Z1 + BPL600 | 8.46d | 2.24c | 0.31a | 0.65d | 3.74a | 3.48c | 0.32a | 0.06b | 2.28ab |
Z1 + BRM450 | 8.07b | 1.61b | 0.73c | 0.61d | 3.98ab | 2.61b | 0.28a | 0.06b | 3.62bc |
Z1 + BRM600 | 8.21c | 1.65b | 0.70c | 0.15a | 4.66b | 2.15ab | 0.28a | 0.07a | 4.17c |
Z2 | 5.10a | 0.09a | 1.07d | 0.54b | 0.54c | 6.84d | 1.37c | 0.07a | 6.35c |
Z2 + BPL450 | 9.43e | 2.29c | 0.23a | 0.21a | 0.29a | 3.10c | 0.13a | 0.06b | 5.93b |
Z2 + BPL600 | 9.18d | 2.50d | 0.70c | 0.18a | 0.40b | 1.96a | 0.28b | 0.06b | 5.38b |
Z2 + BRM450 | 7.73b | 2.05b | 0.50b | 0.24a | 0.29a | 2.16ab | 0.16a | 0.05b | 3.75a |
Z2 + BRM600 | 7.97c | 2.25c | 1.08d | 0.21a | 0.34a | 2.70bc | 0.18a | 0.05b | 4.08a |
Z3 | 3.86a 1 | 0.24a | 1.51d | 0.45b | 0.17e | 0.54a | 0.77d | 0.07a | 5.25d |
Z3 + BPL450 | 7.29b | 3.49c | 0.78b | 0.15a | 0.46b | 0.34b | 0.22b | 0.05b | 3.57a |
Z3 + BPL600 | 7.66c | 3.61c | 0.46a | 0.18a | 0.63c | 0.31b | 0.14a | 0.05b | 4.80c |
Z3 + BRM450 | 8.13d | 2.94b | 0.79b | 0.11a | 0.01a | 0.41b | 0.40c | 0.06b | 4.11ab |
Z3 + BRM600 | 8.08e | 2.75b | 1.20c | 0.15a | 0.85d | 0.35b | 0.43c | 0.06b | 4.32bc |
pH | EC | Cr | Cu | Ni | Fe | Zn | Cd | Pb | |
---|---|---|---|---|---|---|---|---|---|
dS·m−1 | mg·kg−1 | kg·kg−1 | mg·kg−1 | ||||||
P1 | 8.42a 1 | 0.37a | 0.24a | 0.38a | 1.22d | 11.69b | 0.21a | 0.83a | 14.24b |
P1 + BPL450 | 8.63b | 2.21c | 0.11a | 0.38a | 1.67e | 15.46c | 0.25a | <0.01b | 12.09ab |
P1 + BPL600 | 8.82c | 2.35c | 0.42b | 0.32a | 1.07c | 7.29a | 0.51b | <0.01b | 5.72a |
P1 + BRM450 | 8.63b | 2.00bc | 0.10a | 0.30a | 0.15a | 9.90b | 0.18a | <0.01b | 5.84a |
P1 + BRM600 | 8.72d | 1.46b | 0.08a | 0.42a | 0.91b | 14.41c | 0.28ab | <0.01b | 6.07a |
P2 | 5.06a | 1.21a | <0.01b | 0.30ab | 0.59c | 8.18a | 0.37ab | 2.84c | 6.49a |
P2 + BPL450 | 7.50b | 3.43c | 0.27a | 0.22a | 1.60e | 8.04a | 0.86c | <0.01b | 4.76a |
P2 + BPL600 | 7.86c | 2.93bc | <0.01b | 0.46bc | 0.84d | 8.40a | 0.26a | 0.75ab | 5.66a |
P2 + BRM450 | 7.76bc | 2.42b | <0.01b | 0.49c | 0.32b | 4.79a | 0.56b | 0.49a | 5.22a |
P2 + BRM600 | 7.60bc | 2.57b | <0.01b | 0.46bc | 0.01a | 12.53b | 0.30a | 1.50b | 5.67a |
P3 | 7.69a | 2.28a | <0.01a | 0.14ab | <0.01c | 1.74a | 0.45c | 0.79a | 4.74ab |
P3 + BPL450 | 8.65d | 3.95b | <0.01a | 0.23bc | <0.01c | 19.01c | 0.41c | 1.53ab | 8.23c |
P3 + BPL600 | 8.19c | 5.21b | <0.01a | 0.10a | 1.29b | 6.00b | 0.06a | 1.54ab | 9.74c |
P3 + BRM450 | 7.91ab | 3.70ab | <0.01a | 0.27c | 0.99a | 17.20c | 0.15b | 2.27b | 3.55ab |
P3 + BRM600 | 8.03bc | 3.92b | <0.01a | 0.29c | 0.81a | 4.98ab | 0.10a | 1.30ab | 1.29a |
P4 | 7.57a | 3.10a | <0.01a | 0.24b | 1.24bc | 8.28a | 0.16a | 0.47a | 3.62b |
P4 + BPL450 | 8.02b | 5.41c | <0.01a | 0.20ab | 1.47c | 9.00ab | 0.36b | 1.18bc | 8.17c |
P4 + BPL600 | 8.22bc | 5.36c | <0.01a | 0.18a | 0.19a | 7.50a | 0.30b | 0.42a | <0.01d |
P4 + BRM450 | 8.59c | 4.48bc | <0.01a | 0.38c | 0.08a | 14.91b | 0.56c | 1.45c | 2.50a |
P4 + BRM600 | 8.10b | 4.10b | <0.01a | 0.28b | 0.96b | 9.69ab | 0.24a | 0.81ab | <0.01d |
pH | EC | Cr | Cu | Ni | Fe | Zn | Cd | Pb | |
---|---|---|---|---|---|---|---|---|---|
dS·m−1 | mg·kg−1 | kg·kg−1 | mg·kg−1 | ||||||
M1 | 7.91a 1 | 0.90a | 0.20a | 0.08ab | 2.98a | 4.20c | 1.97b | 4.93c | 8.35b |
M1 + BPL450 | 7.96a | 3.11b | 0.85d | 0.04a | 3.12a | 2.09b | 0.28a | 1.46a | 6.85b |
M1 + BPL600 | 7.59a | 3.14b | 0.96d | 0.14ab | 6.56b | 1.99b | 0.43a | 1.10a | 5.19a |
M1 + BRM450 | 7.49a | 3.05b | 0.54c | 0.16b | 7.37b | 1.43a | 0.30a | 2.94b | 16.57d |
M1 + BRM600 | 7.43a | 2.43b | 0.40b | 0.15b | 5.65b | 1.05a | 0.55a | 2.50ab | 14.38c |
M2 | 8.23a | 0.40a | 0.31a | 0.08a | 5.45ab | 3.81b | 3.37b | 0.40a | 6.43b |
M2 + BPL450 | 9.30e | 1.80ab | 0.37ab | 0.16b | 5.61ab | 2.74ab | 0.20a | 0.37a | 6.34b |
M2 + BPL600 | 8.88b | 1,72ab | 0.39ab | 0.38d | 3.43a | 1.71a | 0.50a | 0.28ab | 4.00a |
M2 + BRM450 | 9.04c | 2.13b | 0.61c | 0.19b | 4.39a | 1.58a | 0.16a | 0.23b | 15.73c |
M2 + BRM600 | 9.18d | 1.73ab | 0.47b | 0.26c | 7.23b | 3.56b | 0.40a | 0.34a | 15.33c |
M3 | 7.24a | 0.53a | 0.31a | 0.12b | 4.87a | 1.55bc | 0.41a | 0.33a | 7.10b |
M3 + BPL450 | 8.57b | 2.44d | 0.37a | 0.37c | 3.78a | 1.10ab | 0.32a | 0.26a | 5.95ab |
M3 + BPL600 | 8.05ab | 2.70e | 0.39a | 0.09ab | 6.75b | 0.86a | 0.35a | 0.13b | 7.63b |
M3 + BRM450 | 7.71ab | 1.58b | 0.61b | 0.05a | 8.80c | 1.64c | 0.30a | 0.21a | 4.86a |
M3 + BRM600 | 8.67b | 1.73c | 0.43a | 0.07ab | 7.34b | 2.70d | 0.27a | 0.27a | 7.64b |
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Álvarez, M.L.; Méndez, A.; Paz-Ferreiro, J.; Gascó, G. Effects of Manure Waste Biochars in Mining Soils. Appl. Sci. 2020, 10, 3393. https://doi.org/10.3390/app10103393
Álvarez ML, Méndez A, Paz-Ferreiro J, Gascó G. Effects of Manure Waste Biochars in Mining Soils. Applied Sciences. 2020; 10(10):3393. https://doi.org/10.3390/app10103393
Chicago/Turabian StyleÁlvarez, María Luisa, Ana Méndez, Jorge Paz-Ferreiro, and Gabriel Gascó. 2020. "Effects of Manure Waste Biochars in Mining Soils" Applied Sciences 10, no. 10: 3393. https://doi.org/10.3390/app10103393