Research Keyword: Soil remediation

Soil polluted system shapes endophytic fungi communities associated with Arundo donax: a field experiment

Mining activities pollute soils with heavy metals and red mud waste, damaging ecosystems and making plant growth difficult. This study examined fungi living inside the roots of Arundo donax, a hardy plant that survives in polluted soils, grown in three soil types: clean, heavy metal-contaminated, and red mud-contaminated. The researchers found that fungal communities changed based on the type of pollution, with a fungus called Pleosporales sp. thriving in red mud and showing promise for helping clean up contaminated soils. This research suggests that understanding these beneficial fungi could improve strategies for using plants to remediate polluted environments.

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Role of Genetically Modified Microorganisms for Effective Elimination of Heavy Metals

Heavy metals like lead, mercury, and arsenic are dangerous pollutants that accumulate in our environment and food chain, causing serious health problems. Traditional methods to remove these metals are expensive and inefficient. Scientists have created genetically modified bacteria and fungi that are much better at absorbing and breaking down heavy metals from contaminated water and soil, offering a cheaper and more environmentally friendly solution to clean up pollution.

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Phyto- and Microbial-Based Remediation of Rare-Earth-Element-Polluted Soil

Rare-earth elements from mining and industry accumulate in soil, posing environmental and health risks. This review explores how plants and beneficial microorganisms can work together to clean up contaminated soil by absorbing or immobilizing these elements. The combined approach of using specific plant species alongside soil microorganisms is more effective than using either method alone, offering a natural and cost-effective solution for soil remediation.

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Enhanced Phytoextraction Technologies for the Sustainable Remediation of Cadmium-Contaminated Soil Based on Hyperaccumulators—A Review

Cadmium contamination of farmland is a serious global problem that threatens food safety and human health. This review explores how special plants called hyperaccumulators can extract cadmium from soil, and how scientists can boost their effectiveness through various methods like beneficial bacteria, improved farming techniques, and special chemicals. The research shows that combining multiple enhancement strategies works better than using any single approach, offering hope for cleaning up polluted agricultural lands sustainably.

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Biodegradation of synthetic organic pollutants: principles, progress, problems, and perspectives

This comprehensive review explains how bacteria naturally break down synthetic pollutants in our environment through various mechanisms. Scientists use advanced tools like gene sequencing and computer analysis to identify which bacteria degrade specific pollutants, how quickly they work, and what intermediate products form. Understanding these bacterial degradation pathways helps us develop better strategies to clean up contaminated water and soil in an environmentally friendly way.

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Advancements in Biochar for Soil Remediation of Heavy Metals and/or Organic Pollutants

Biochar, a carbon-rich material made from burning plant waste with limited oxygen, can effectively clean polluted soil by trapping harmful chemicals and metals. When mixed into contaminated soil, biochar’s porous structure acts like a sponge to capture pesticides, petroleum products, and toxic metals, preventing them from spreading into groundwater or being absorbed by plants. Scientists have found that combining biochar with plants and beneficial bacteria creates an even more effective cleaning system that can remediate severely contaminated sites.

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Current state of the heavy metal pollution, microbial diversity, and bioremediation experiments around the Qixia Mountain lead–zinc mine in Nanjing, China

A lead-zinc mine in Nanjing, China has contaminated surrounding soils with dangerous heavy metals like lead, zinc, and cadmium over 70 years of operation. Researchers discovered that combining amaranth plants with a beneficial bacterium called Bacillus velezensis dramatically reduced heavy metal pollution in soil, lowering pollution levels from severely contaminated to acceptable levels. This plant-microorganism approach also improved plant growth while reducing heavy metal uptake in the edible parts of crops, offering a practical solution to make farmland around mines safer for growing food.

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Benefits of Immobilized Bacteria in Bioremediation of Sites Contaminated with Toxic Organic Compounds

This review explains how immobilizing bacteria on solid carriers like biochar can make them much more effective at cleaning up polluted soil and water. When bacteria are attached to a matrix material, they form protective biofilms that help them survive toxic pollutants better than free-floating bacteria. By combining immobilized bacteria with the right carrier materials, environmental cleanup can be faster, cheaper, and more sustainable than traditional chemical methods.

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Use of Anaerobic Digestate Inoculated with Fungi as a Soil Amendment for Soil Remediation: A Systematic Review

This research examines how using fungi-treated digestate (a byproduct from biogas production) can clean polluted soil more effectively than using either alone. The study shows that combining digestate with fungi successfully removes heavy metals like lead and cadmium from soil while promoting plant growth. The best results came from using digestate made from cattle manure. This approach offers an affordable and sustainable way to restore contaminated soils.

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Isolation of Bacteria from Lead-Contaminated Soil and Bacterial Interaction Test with Plant Growing on Lead-Amended Media

Researchers discovered special bacteria from lead-contaminated soil that can accumulate and neutralize lead while also producing a plant hormone called IAA. When these bacteria were added to three ornamental plants growing in lead-contaminated soil, the plants grew better and absorbed less lead. This discovery offers a promising natural and sustainable way to clean up lead-polluted environments by combining bacteria and plants.

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