Improving Physical and Chemical Properties of Saline Soils with Fly Ash Saline and Alkaline Amendment Materials

Sustainability, Journal Year: 2024, Volume and Issue: 16(8), P. 3216 - 3216

Published: April 11, 2024

Studies have demonstrated that the physicochemical properties of saline soils can be improved, and crop growth promoted by fly ash alkaline soil amendment materials. Herein, effects materials on physical chemical conditions Arrhenatherum elatius at room temperature were evaluated. Meanwhile, planting experiments Zea mays L. conducted in demonstration field saline–alkaline land Yinchuan, Ningxia. The results showed application significantly (p < 0.05) improved soil’s properties. pH decreased from an average 10.51 to 8.89; Na+ content 2.93 g·kg−1 0.7 after 25 days action. In addition, bulk density 1.49 g·cm−3 1.36 g·cm−3, total porosity increased 15.60%. Soil available phosphorus potassium also significantly, with mean values increasing 6.74 mg·kg−1 173 58.30 330.76 mg·kg−1, respectively. plant height stem thickness 11.76 cm, 1.28 mm 21.72 1.59 2.5 wt% material. 210 cm 21.94 315.7 26.75 mm, respectively, when 0.07 t·hm−2 material was applied field. Overall, it concluded applying improves soils, reducing stress promoting

Language: Английский

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Desalination/oxidation of papermaking black liquor to prepare liquid fertilizer as soil amendments for plant growth promotion

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121987 - 121987

Published: May 1, 2025

Language: Английский

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Recycling fly ash from coal or biomass combustion for nutrient recovery and enhanced food production in acidic agroecosystems: A multi-level meta-analysis

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 221, P. 115925 - 115925

Published: June 4, 2025

Language: Английский

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Desilication of high-silica Indian coal fly ash by alkali leaching with KOH and NaOH: A comparative study

International Journal of Coal Preparation and Utilization, Journal Year: 2023, Volume and Issue: 44(7), P. 866 - 881

Published: June 23, 2023

Indian coal fly ash generally comprises 50–60% SiO2, and 25–35% Al2O3 can potentially replace bauxite as an aluminum resource. Aluminum recovery from is highly dependent on removing amorphous silica, activating the inactive mullite phase, increasing Al/Si ratio. This work thoroughly investigated compared alkali-desilication operation by two widely used alkalis, KOH NaOH, based four operational parameters: liquid-to-solid ratio, or NaOH concentration, leaching time temperature. Using SEM, EDX, XRD, morphology phase of solid byproducts were analyzed. was more effective than in SiO2 dissolution at all parameters. A 20 wt% 5:1 2hrs time, 100°C temperature optimum removal conditions for silica using NaOH. With KOH, ideal desilication obtained 28 3hrs 150°C The highest ratios under same optimal conditions. ratio enhanced 0.58 to 1.26 1.45, respectively. main zeolitic products Hydroxysodalite NaOH-treated Linde F zeolite Kalsilite KOH-treated ash.

Language: Английский

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Effects of soil conditioner on soil-crop nitrogen transport and crop nitrogen utilization under different irrigation levels in China

Journal of Soils and Sediments, Journal Year: 2023, Volume and Issue: 23(11), P. 3806 - 3819

Published: July 11, 2023

Language: Английский

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Design and preparation of reticular superabsorbent hydrogel material with nutrient slow-release and high shear strength for ecological remediation of abandoned mines with steep slopes

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 270, P. 132303 - 132303

Published: May 12, 2024

Language: Английский

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