Environmental remediation potential of a pioneer plant (Miscanthus sp.) from abandoned mine into biochar: Heavy metal stabilization and environmental application

Journal of Environmental Management, Год журнала: 2024, Номер 366, С. 121751 - 121751

Опубликована: Июль 6, 2024

Язык: Английский

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Plant Adaptability to Improved Dredged Sediment

Agriculture, Год журнала: 2025, Номер 15(2), С. 218 - 218

Опубликована: Янв. 20, 2025

Traditional dredged sludge disposal methods are characterized by low resource utilization and high carbon emissions, leading to serious environmental pollution. This study used sludge, composted pig manure, sawdust as raw materials, supplemented them with composite biological agents prepare improved soil. Plant adaptability the soil was comprehensively evaluated using factors such seed germination index (GI). The alkaline nitrogen content in increased 78.61% compared of other nutrients available potassium also varying degrees. Ryegrass GI 51.06% (IS1) sludge. main dominant fungi were Tausonia, Trichoderma, Cystoflobasidium, which promote nutrient activation antagonize pathogenic bacteria, making environment more conducive plant growth. Dredged successfully converted into planting Fully utilizing nitrogen, phosphorus, substances enriched provide for growth is an efficient method achieve utilization.

Язык: Английский

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Assessment of metal residues in soil and evaluate the plant accumulation in copper mine tailings of Dongchuan, Southwest China

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Фев. 24, 2025

This study aimed to identify suitable plants for remediating metal pollution in copper tailing soil and supporting ecological reclamation Dongchuan, Yunnan, focusing on three major mining regions: Tangdan, Yinmin, Lanniping. The Nemerow comprehensive index was employed evaluate the contamination levels, enrichment transfer capacities of dominant Cd, Cu, Pb, Zn were analyzed remediation candidates. findings revealed severe soil, with Cu as primary pollutant, a rate 77.778%. A total 96 plant species from 42 families 87 genera recorded, including 29 across 17 26 genera, herbs comprising 62.068% types. Among tested plants, Leucaena leucocephala, Rumex acetosa, Festuca rubra, Salix balfouriana exhibited significantly higher capacities, rendering them restoration. highest membership function score 5.298 identified preferred restoration Dongchuan area. Correlation analysis positive relationship between content underground parts both organic matter (OM) rhizosphere whereas negative correlation observed pH. area is severely contaminated by metals, mainly Cu. S. emerged most candidate accumulation. establishes theoretical framework application promotion phytoremediation technology tailings

Язык: Английский

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Anthropogenic impacts on regional leaching risks posed by trace metal(loid)s in the soil of an industrial city

Journal of Hazardous Materials, Год журнала: 2025, Номер 490, С. 137822 - 137822

Опубликована: Март 3, 2025

Язык: Английский

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Heavy metal pollution and probabilistic risk assessment in soil of desert road shelterbelts in typical oasis cities in Northwest China

Environmental Geochemistry and Health, Год журнала: 2025, Номер 47(5)

Опубликована: Март 28, 2025

Язык: Английский

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Study on the Long-Term Durability and Leaching Characteristics of Low-Consumption Cement Backfill under Different Environmental Conditions

Sustainability, Год журнала: 2024, Номер 16(12), С. 5138 - 5138

Опубликована: Июнь 17, 2024

The high consumption and cost of cement are the bottleneck problems that limit development cemented tailings backfilling technology. low-consumption backfill is immersed in a weak acid/alkaline groundwater environment for long time. Reducing can easily lead to such as sudden decrease strength leakage heavy metals. Through monolithic leaching test static uniaxial compressive tests, metals’ concentration backfills different pH soaking solutions were measured at times. Results show lower will result CTB higher rate metal leaching. Long-term exposure an acidic/alkaline instability destruction structure. A microscopic examination reveals creation hydration products improve structure’s compactness while also lowering internal porosity but solidify ions various ways. first-order reaction/diffusion model (FRDM) better evaluate behavior CTB. This study helps technology, thereby contributing sustainable mining geotechnologies.

Язык: Английский

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Optimizing soil remediation with multi-functional L-PH hydrogel: Enhancing water retention and heavy metal stabilization in farmland soil

The Science of The Total Environment, Год журнала: 2024, Номер 959, С. 178154 - 178154

Опубликована: Дек. 23, 2024

Язык: Английский

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Heavy Metal Contamination Assessment and Source Attribution in the Vicinity of an Iron Slag Pile in Hechi, China: Integrating Multi-Medium Analysis

Environmental Research, Год журнала: 2024, Номер 263, С. 120206 - 120206

Опубликована: Окт. 21, 2024

Язык: Английский

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Exopolysaccharide-Producing Bacteria Regulate Soil Aggregates and Bacterial Communities to Inhibit the Uptake of Cadmium and Lead by Lettuce

Microorganisms, Год журнала: 2024, Номер 12(11), С. 2112 - 2112

Опубликована: Окт. 22, 2024

The accumulation of heavy metals in the soil not only causes serious damage to ecosystem, but also threatens human health through food chain. Exopolysaccharides have functions adsorbing and chelating reducing their bioavailability soil. In our study, exopolysaccharide-producing bacteria with a high efficiency cadmium (Cd) lead (Pb) were screened from metal-contaminated farmland. Through pot experiments, influence functional strains on size distribution, metal content, bacterial community structure aggregates lettuce was studied using high-throughput sequencing technology. results show that 11 secreting exopolysaccharides initially Among them, strain Z23 had removal rate 88.6% for Cd 93.2% Pb. at which removed by Z39 92.3%, Pb 94.4%. Both belong

Язык: Английский

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Improving soil health and carbon sequestration through land reclamation in shale gas fields: A case study from Fuling's Jiaoshi Town

Environmental Pollution and Management, Год журнала: 2024, Номер 1, С. 15 - 23

Опубликована: Май 24, 2024

This investigation delves into the impact of shale gas extraction and subsequent land reclamation on soil characteristics plant carbon sequestration within Fuling District, specifically focusing Jiaoshi Town. Through meticulous sampling analysis, study evaluates modifications in soil's physical chemical properties pre- post-reclamation, encompassing pH, bulk density, moisture content, nitrogen, phosphorus levels, heavy metal concentrations. Concurrently, potential several reintroduced local species is assessed. Findings indicate a slight alkaline shift pH with notable improvements structure, reflected by decreased density enhanced fostering better conditions for growth. An increase nitrogen content post-reclamation suggests fertility, pivotal agricultural productivity. research contributes to understanding environmental restoration effectiveness following industrial disturbances, offering insights optimizing practices ecological balance sustainable management gas-affected regions.

Язык: Английский

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