Research Topic: soil remediation

A Review on Remediation Technology and the Remediation Evaluation of Heavy Metal-Contaminated Soils

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Heavy metals from industrial activities, mining, and vehicle emissions contaminate agricultural soils and pose health risks to humans through the food chain. This review summarizes different methods to clean contaminated soils, ranging from physical removal to using plants and microorganisms to absorb metals. The most promising approaches combine multiple techniques and use biological methods like planting metal-accumulating plants, which are cheaper and less damaging to soil ecology than traditional chemical or thermal treatments.

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Biodegradation of BTEX by Bacteria Isolated From Soil Contaminated With Petroleum Sludge and Liquid and Solid Petrochemical Effluents

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Scientists isolated bacteria from oil-contaminated soil that can effectively break down BTEX chemicals, which are toxic pollutants from petroleum products. Two bacterial strains, Arthrobacter pascens and Bacillus sp., proved most effective at degrading these harmful compounds, removing over 80% within 12 days. These findings suggest these bacteria could be used to clean up contaminated sites naturally and cost-effectively.

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Synergistic effects of beneficial microbial inoculants and SMS-amendments on improving soil properties and Pinus seedling growth in degraded soils

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This study shows how mixing beneficial bacteria with mushroom waste can improve poor soil quality. The bacteria help break down the mushroom waste into nutrients that plants need, while also creating a healthier soil environment full of beneficial microbes. When this treated mushroom waste was added to degraded soil and used to grow pine seedlings, the plants grew taller with thicker stems and more leaves than in untreated soil. This approach offers a practical way to recycle agricultural waste while restoring damaged soils.

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Advancements in biopile-based sustainable soil remediation: a decade of improvements, integrating bioremediation technologies and AI-based innovative tools

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This review examines how biopile technology, which uses naturally occurring microorganisms to break down soil pollutants, has improved over the past decade. By optimizing conditions like moisture, temperature, and oxygen levels, and combining biopiles with sustainable materials like biochar and biosurfactants, scientists can effectively remove contaminants from soil while supporting carbon storage and ecosystem recovery. The approach offers an environmentally friendly and cost-effective alternative to traditional chemical remediation methods.

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Fluorescence-Based Soil Survival Analysis of the Xenobiotic- and Metal-Detoxifying Streptomyces sp. MC1

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Scientists developed a way to track a soil bacterium called Streptomyces sp. MC1 that can clean up polluted soils by breaking down harmful chemicals and reducing toxic metals like chromium. They added a glowing green fluorescent protein to the bacteria so they could easily see where the bacteria were and how long they survived in contaminated soil. In tests with soil contaminated with two different pollutants, the tagged bacteria successfully removed over 96% of chromium and 65% of lindane over 28 days, demonstrating the approach works for monitoring bioremediation efforts.

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Mycoremediation of Petroleum-Contaminated Soil Using Native Ganoderma and Trametes Strains from the Ecuadorian Amazon

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Researchers from Ecuador tested native fungi from the Amazon rainforest for their ability to clean up oil-contaminated soil. Five fungal species were found to remove over 96% of petroleum hydrocarbons in just 60 days through their natural enzymatic systems. These results show that fungi from biodiverse regions could offer an affordable and sustainable alternative to traditional soil cleanup methods, particularly important for communities affected by oil extraction pollution.

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